Merge branch 'ethereum-optimism:develop' into integration-test-setup

.changeset/angry-ducks-arrive.md

----
-'@eth-optimism/l2geth': patch
----
-
-surface sequencer low-level sequencer execution errors

.changeset/clever-bananas-look.md

----
-'@eth-optimism/contracts': patch
----
-
-Adds a new TestLib_CrossDomainUtils so we can properly test cross chain encoding functions

.changeset/cyan-owls-grow.md

+---
+'@eth-optimism/batch-submitter': patch
+---
+
+Fix the numTxPerBatch metric

.changeset/lazy-trees-hide.md

+---
+'@eth-optimism/message-relayer': patch
+---
+
+Removed old node.js service running script

.changeset/purple-cups-camp.md

+---
+'@eth-optimism/l2geth-exporter': patch
+---
+
+Initial build

.changeset/purple-squids-taste.md

+---
+'@eth-optimism/batch-submitter-service': patch
+---
+
+Fix metrics server

.circleci/config.yml

+version: 2.1
+orbs:
+  gcp-gke: circleci/gcp-gke@1.3.0
+commands:
+  build-dockerfile:
+    parameters:
+      image-name:
+        description: Image name
+        type: string
+      target:
+        description: Dockerfile target
+        type: string
+        default: ""
+      dockerfile:
+        description: Dockerfile to use
+        type: string
+    steps:
+      - checkout
+      - setup_remote_docker:
+          version: 19.03.13
+      - run:
+          name: Build
+          command: |
+            echo -n "$STACKMAN_REPO_AUTH" | docker login -u _json_key --password-stdin https://us-east4-docker.pkg.dev
+            docker build -t "$STACKMAN_REPO/<<parameters.image-name>>:nightly" -f <<parameters.dockerfile>> <<#parameters.target>>--target <<parameters.target>><</parameters.target>> .
+            docker push "$STACKMAN_REPO/<<parameters.image-name>>:nightly"
+jobs:
+  build-dtl:
+    docker:
+      - image: cimg/base:2021.04
+    steps:
+      - build-dockerfile:
+          image-name: data-transport-layer
+          target: data-transport-layer
+          dockerfile: ./ops/docker/Dockerfile.packages
+  build-batch-submitter:
+    docker:
+      - image: cimg/base:2021.04
+    steps:
+      - build-dockerfile:
+          image-name: batch-submitter
+          target: batch-submitter
+          dockerfile: ./ops/docker/Dockerfile.packages
+  build-go-batch-submitter:
+    docker:
+      - image: cimg/base:2021.04
+    steps:
+      - build-dockerfile:
+          image-name: go-batch-submitter
+          dockerfile: ./ops/docker/Dockerfile.batch-submitter-service
+  build-deployer:
+    docker:
+      - image: cimg/base:2021.04
+    steps:
+      - build-dockerfile:
+          image-name: deployer
+          target: deployer
+          dockerfile: ./ops/docker/Dockerfile.packages
+  build-l2geth:
+    docker:
+      - image: cimg/base:2021.04
+    steps:
+      - build-dockerfile:
+          image-name: l2geth
+          dockerfile: ./ops/docker/Dockerfile.geth
+  build-gas-oracle:
+    docker:
+      - image: cimg/base:2021.04
+    steps:
+      - build-dockerfile:
+          image-name: gas-oracle
+          dockerfile: ./ops/docker/Dockerfile.gas-oracle
+  build-integration-tests:
+    docker:
+      - image: cimg/base:2021.04
+    steps:
+      - build-dockerfile:
+          image-name: integration-tests
+          target: integration-tests
+          dockerfile: ./ops/docker/Dockerfile.packages
+  deploy-nightly:
+    docker:
+      - image: cimg/base:2021.04
+    steps:
+      - gcp-gke/install
+      - gcp-gke/update-kubeconfig-with-credentials:
+          cluster: $STACKMAN_CLUSTER
+          gcloud-service-key: STACKMAN_SERVICE_KEY
+          google-compute-region: STACKMAN_COMPUTE_REGION
+          google-compute-zone: STACKMAN_COMPUTE_ZONE
+          google-project-id: STACKMAN_PROJECT_ID
+          install-kubectl: yes
+          perform-login: yes
+      - run:
+          name: Deploy
+          command: |
+            echo "Current nightly pods:"
+            kubectl get pods --namespace nightly
+            echo "Redeploying pods:"
+            kubectl rollout restart statefulset nightly-sequencer --namespace nightly
+            kubectl rollout restart statefulset nightly-go-batch-submitter --namespace nightly
+            kubectl rollout restart statefulset nightly-dtl --namespace nightly
+            kubectl rollout restart deployment nightly-gas-oracle --namespace nightly
+
+
+workflows:
+  nightly:
+    triggers:
+      - schedule:
+          cron: "0 0 * * * "
+          filters:
+            branches:
+              only:
+                - develop
+    jobs:
+      - build-dtl:
+          context: optimism
+      - build-batch-submitter:
+          context: optimism
+      - build-deployer:
+          context: optimism
+      - build-l2geth:
+          context: optimism
+      - build-gas-oracle:
+          context: optimism
+      - build-integration-tests:
+          context: optimism
+      - build-go-batch-submitter:
+          context: optimism
+      - deploy-nightly:
+          context: optimism
+          requires:
+            - build-dtl
+            - build-batch-submitter
+            - build-go-batch-submitter
+            - build-deployer
+            - build-l2geth
+            - build-gas-oracle
+            - build-integration-tests
\ No newline at end of file

.editorconfig

@@ -11,3 +11,7 @@ trim_trailing_whitespace = true
 
 [*.sol]
 indent_size = 4
+
+[*.go]
+indent_size = 4
+indent_style = tab

.github/workflows/integration.yml

@@ -18,6 +18,9 @@ jobs:
         image: registry:2
         ports:
           - 5000:5000
+    strategy:
+      matrix:
+        batch-submitter: [ts-batch-submitter, go-batch-submitter]
     env:
         DOCKER_BUILDKIT: 1
         COMPOSE_DOCKER_CLI_BUILD: 1
@@ -41,7 +44,7 @@ jobs:
         working-directory: ./ops
         run: |
           ./scripts/stats.sh &
-          docker-compose up -d
+          docker-compose -f docker-compose.yml -f docker-compose.${{ matrix.batch-submitter }}.yml up -d
 
       - name: Wait for the Sequencer node
         working-directory: ./ops

.github/workflows/publish-canary.yml

@@ -28,6 +28,7 @@ jobs:
       proxyd: ${{ steps.packages.outputs.proxyd }}
       rpc-proxy : ${{ steps.packages.outputs.rpc-proxy }}
       op-exporter : ${{ steps.packages.outputs.op-exporter }}
+      l2geth-exporter : ${{ steps.packages.outputs.l2geth-exporter }}
 
     steps:
       - name: Check out source code
@@ -443,6 +444,43 @@ jobs:
             GITCOMMIT=${{ steps.build_args.outputs.GITCOMMIT }}
             GITVERSION=${{ steps.build_args.outputs.GITVERSION }}
 
+  l2geth-exporter:
+    name: Publish l2geth-exporter Version ${{ needs.canary-publish.outputs.canary-docker-tag }}
+    needs: canary-publish
+    if: needs.canary-publish.outputs.l2geth-exporter != ''
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_ACCESS_TOKEN_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_ACCESS_TOKEN_SECRET }}
+
+      - name: Set build args
+        id: build_args
+        run: |
+          echo ::set-output name=GITDATE::"$(date +%d-%m-%Y)"
+          echo ::set-output name=GITVERSION::$(jq -r .version ./go/l2geth-exporter/package.json)
+          echo ::set-output name=GITCOMMIT::"$GITHUB_SHA"
+
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./ops/docker/Dockerfile.l2geth-exporter
+          push: true
+          tags: ethereumoptimism/l2geth-exporter:${{ needs.canary-publish.outputs.l2geth-exporter }}
+          build-args: |
+            GITDATE=${{ steps.build_args.outputs.GITDATE }}
+            GITCOMMIT=${{ steps.build_args.outputs.GITCOMMIT }}
+            GITVERSION=${{ steps.build_args.outputs.GITVERSION }}
+
   rpc-proxy:
     name: Publish rpc-proxy Version ${{ needs.canary-publish.outputs.canary-docker-tag }}
     needs: canary-publish

.github/workflows/release.yml

@@ -24,6 +24,7 @@ jobs:
       rpc-proxy: ${{ steps.packages.outputs.rpc-proxy }}
       hardhat-node: ${{ steps.packages.outputs.hardhat-node }}
       op-exporter : ${{ steps.packages.outputs.op-exporter }}
+      l2geth-exporter : ${{ steps.packages.outputs.l2geth-exporter }}
 
     steps:
       - name: Checkout Repo
@@ -196,8 +197,45 @@ jobs:
             GITCOMMIT=${{ steps.build_args.outputs.GITCOMMIT }}
             GITVERSION=${{ steps.build_args.outputs.GITVERSION }}
 
+  l2geth-exporter:
+    name: Publish l2geth-exporter Version ${{ needs.release.outputs.l2geth-exporter}}
+    needs: release
+    if: needs.release.outputs.l2geth-exporter != ''
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_ACCESS_TOKEN_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_ACCESS_TOKEN_SECRET }}
+
+      - name: Set build args
+        id: build_args
+        run: |
+          echo ::set-output name=GITDATE::"$(date +%d-%m-%Y)"
+          echo ::set-output name=GITVERSION::$(jq -r .version ./go/l2geth-exporter/package.json)
+          echo ::set-output name=GITCOMMIT::"$GITHUB_SHA"
+
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./ops/docker/Dockerfile.l2geth-exporter
+          push: true
+          tags: ethereumoptimism/l2geth-exporter:${{ needs.release.outputs.l2geth-exporter }},ethereumoptimism/l2geth-exporter:latest
+          build-args: |
+            GITDATE=${{ steps.build_args.outputs.GITDATE }}
+            GITCOMMIT=${{ steps.build_args.outputs.GITCOMMIT }}
+            GITVERSION=${{ steps.build_args.outputs.GITVERSION }}
+
   op-exporter:
-    name: Publish op-exporter Version ${{ needs.release.outputs.canary-docker-tag }}
+    name: Publish op-exporter Version ${{ needs.release.outputs.op-exporter}}
     needs: release
     if: needs.release.outputs.op-exporter != ''
     runs-on: ubuntu-latest
@@ -227,7 +265,7 @@ jobs:
           context: .
           file: ./ops/docker/Dockerfile.op-exporter
           push: true
-          tags: ethereumoptimism/op-exporter:${{ needs.canary-publish.outputs.op-exporter }}
+          tags: ethereumoptimism/op-exporter:${{ needs.release.outputs.op-exporter }},ethereumoptimism/op-exporter:latest
           build-args: |
             GITDATE=${{ steps.build_args.outputs.GITDATE }}
             GITCOMMIT=${{ steps.build_args.outputs.GITCOMMIT }}

.github/workflows/ts-packages.yml

@@ -131,6 +131,13 @@ jobs:
           fail_ci_if_error: false
           verbose: true
           flags: message-relayer
+      - uses: codecov/codecov-action@v1
+        with:
+          files: ./packages/sdk/coverage.json
+          fail_ci_if_error: false
+          verbose: true
+          flags: sdk
+
   lint:
     name: Linting
     runs-on: ubuntu-latest

go/batch-submitter/batch_submitter.go

@@ -4,11 +4,16 @@ import (
 	"context"
 	"crypto/ecdsa"
 	"fmt"
+	"math/big"
 	"net/http"
 	"os"
 	"strconv"
 	"time"
 
+	"github.com/ethereum-optimism/optimism/go/batch-submitter/drivers/proposer"
+	"github.com/ethereum-optimism/optimism/go/batch-submitter/drivers/sequencer"
+	"github.com/ethereum-optimism/optimism/go/batch-submitter/txmgr"
+	l2ethclient "github.com/ethereum-optimism/optimism/l2geth/ethclient"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethclient"
@@ -41,12 +46,25 @@ func Main(gitVersion string) func(ctx *cli.Context) error {
 			defer sentry.Flush(2 * time.Second)
 		}
 
-		_, err = NewBatchSubmitter(cfg, gitVersion)
+		log.Info("Initializing batch submitter")
+
+		batchSubmitter, err := NewBatchSubmitter(cfg, gitVersion)
 		if err != nil {
 			log.Error("Unable to create batch submitter", "error", err)
 			return err
 		}
 
+		log.Info("Starting batch submitter")
+
+		if err := batchSubmitter.Start(); err != nil {
+			return err
+		}
+		defer batchSubmitter.Stop()
+
+		log.Info("Batch submitter started")
+
+		<-(chan struct{})(nil)
+
 		return nil
 	}
 }
@@ -57,11 +75,14 @@ type BatchSubmitter struct {
 	ctx              context.Context
 	cfg              Config
 	l1Client         *ethclient.Client
-	l2Client         *ethclient.Client
+	l2Client         *l2ethclient.Client
 	sequencerPrivKey *ecdsa.PrivateKey
 	proposerPrivKey  *ecdsa.PrivateKey
 	ctcAddress       common.Address
 	sccAddress       common.Address
+
+	batchTxService    *Service
+	batchStateService *Service
 }
 
 // NewBatchSubmitter initializes the BatchSubmitter, gathering any resources
@@ -98,8 +119,6 @@ func NewBatchSubmitter(cfg Config, gitVersion string) (*BatchSubmitter, error) {
 
 	log.Root().SetHandler(log.LvlFilterHandler(logLevel, logHandler))
 
-	log.Info("Config", "config", fmt.Sprintf("%#v", cfg))
-
 	// Parse sequencer private key and CTC contract address.
 	sequencerPrivKey, ctcAddress, err := parseWalletPrivKeyAndContractAddr(
 		"Sequencer", cfg.Mnemonic, cfg.SequencerHDPath,
@@ -118,14 +137,14 @@ func NewBatchSubmitter(cfg Config, gitVersion string) (*BatchSubmitter, error) {
 		return nil, err
 	}
 
-	// Connect to L1 and L2 providers. Perform these lastsince they are the
+	// Connect to L1 and L2 providers. Perform these last since they are the
 	// most expensive.
-	l1Client, err := dialEthClientWithTimeout(ctx, cfg.L1EthRpc)
+	l1Client, err := dialL1EthClientWithTimeout(ctx, cfg.L1EthRpc)
 	if err != nil {
 		return nil, err
 	}
 
-	l2Client, err := dialEthClientWithTimeout(ctx, cfg.L2EthRpc)
+	l2Client, err := dialL2EthClientWithTimeout(ctx, cfg.L2EthRpc)
 	if err != nil {
 		return nil, err
 	}
@@ -134,6 +153,70 @@ func NewBatchSubmitter(cfg Config, gitVersion string) (*BatchSubmitter, error) {
 		go runMetricsServer(cfg.MetricsHostname, cfg.MetricsPort)
 	}
 
+	chainID, err := l1Client.ChainID(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	txManagerConfig := txmgr.Config{
+		MinGasPrice:          gasPriceFromGwei(1),
+		MaxGasPrice:          gasPriceFromGwei(cfg.MaxGasPriceInGwei),
+		GasRetryIncrement:    gasPriceFromGwei(cfg.GasRetryIncrement),
+		ResubmissionTimeout:  cfg.ResubmissionTimeout,
+		ReceiptQueryInterval: time.Second,
+	}
+
+	var batchTxService *Service
+	if cfg.RunTxBatchSubmitter {
+		batchTxDriver, err := sequencer.NewDriver(sequencer.Config{
+			Name:        "Sequencer",
+			L1Client:    l1Client,
+			L2Client:    l2Client,
+			BlockOffset: cfg.BlockOffset,
+			MaxTxSize:   cfg.MaxL1TxSize,
+			CTCAddr:     ctcAddress,
+			ChainID:     chainID,
+			PrivKey:     sequencerPrivKey,
+		})
+		if err != nil {
+			return nil, err
+		}
+
+		batchTxService = NewService(ServiceConfig{
+			Context:         ctx,
+			Driver:          batchTxDriver,
+			PollInterval:    cfg.PollInterval,
+			L1Client:        l1Client,
+			TxManagerConfig: txManagerConfig,
+		})
+	}
+
+	var batchStateService *Service
+	if cfg.RunStateBatchSubmitter {
+		batchStateDriver, err := proposer.NewDriver(proposer.Config{
+			Name:        "Proposer",
+			L1Client:    l1Client,
+			L2Client:    l2Client,
+			BlockOffset: cfg.BlockOffset,
+			MaxTxSize:   cfg.MaxL1TxSize,
+			SCCAddr:     sccAddress,
+			CTCAddr:     ctcAddress,
+			ChainID:     chainID,
+			PrivKey:     proposerPrivKey,
+		})
+		if err != nil {
+			return nil, err
+		}
+
+		batchStateService = NewService(ServiceConfig{
+			Context:         ctx,
+			Driver:          batchStateDriver,
+			PollInterval:    cfg.PollInterval,
+			L1Client:        l1Client,
+			TxManagerConfig: txManagerConfig,
+		})
+	}
+
 	return &BatchSubmitter{
 		ctx:               ctx,
 		cfg:               cfg,
@@ -143,9 +226,34 @@ func NewBatchSubmitter(cfg Config, gitVersion string) (*BatchSubmitter, error) {
 		proposerPrivKey:   proposerPrivKey,
 		ctcAddress:        ctcAddress,
 		sccAddress:        sccAddress,
+		batchTxService:    batchTxService,
+		batchStateService: batchStateService,
 	}, nil
 }
 
+func (b *BatchSubmitter) Start() error {
+	if b.cfg.RunTxBatchSubmitter {
+		if err := b.batchTxService.Start(); err != nil {
+			return err
+		}
+	}
+	if b.cfg.RunStateBatchSubmitter {
+		if err := b.batchStateService.Start(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (b *BatchSubmitter) Stop() {
+	if b.cfg.RunTxBatchSubmitter {
+		_ = b.batchTxService.Stop()
+	}
+	if b.cfg.RunStateBatchSubmitter {
+		_ = b.batchStateService.Stop()
+	}
+}
+
 // parseWalletPrivKeyAndContractAddr returns the wallet private key to use for
 // sending transactions as well as the contract address to send to for a
 // particular sub-service.
@@ -185,16 +293,16 @@ func parseWalletPrivKeyAndContractAddr(
 // NOTE: This method MUST be run as a goroutine.
 func runMetricsServer(hostname string, port uint64) {
 	metricsPortStr := strconv.FormatUint(port, 10)
-	metricsAddr := fmt.Sprintf("%s: %s", hostname, metricsPortStr)
+	metricsAddr := fmt.Sprintf("%s:%s", hostname, metricsPortStr)
 
 	http.Handle("/metrics", promhttp.Handler())
 	_ = http.ListenAndServe(metricsAddr, nil)
 }
 
-// dialEthClientWithTimeout attempts to dial the L1 or L2 provider using the
+// dialL1EthClientWithTimeout attempts to dial the L1 provider using the
 // provided URL. If the dial doesn't complete within defaultDialTimeout seconds,
 // this method will return an error.
-func dialEthClientWithTimeout(ctx context.Context, url string) (
+func dialL1EthClientWithTimeout(ctx context.Context, url string) (
 	*ethclient.Client, error) {
 
 	ctxt, cancel := context.WithTimeout(ctx, defaultDialTimeout)
@@ -203,6 +311,18 @@ func dialEthClientWithTimeout(ctx context.Context, url string) (
 	return ethclient.DialContext(ctxt, url)
 }
 
+// dialL2EthClientWithTimeout attempts to dial the L2 provider using the
+// provided URL. If the dial doesn't complete within defaultDialTimeout seconds,
+// this method will return an error.
+func dialL2EthClientWithTimeout(ctx context.Context, url string) (
+	*l2ethclient.Client, error) {
+
+	ctxt, cancel := context.WithTimeout(ctx, defaultDialTimeout)
+	defer cancel()
+
+	return l2ethclient.DialContext(ctxt, url)
+}
+
 // traceRateToFloat64 converts a time.Duration into a valid float64 for the
 // Sentry client. The client only accepts values between 0.0 and 1.0, so this
 // method clamps anything greater than 1 second to 1.0.
@@ -213,3 +333,7 @@ func traceRateToFloat64(rate time.Duration) float64 {
 	}
 	return rate64
 }
+
+func gasPriceFromGwei(gasPriceInGwei uint64) *big.Int {
+	return new(big.Int).SetUint64(gasPriceInGwei * 1e9)
+}

go/batch-submitter/config.go

@@ -223,6 +223,10 @@ func NewConfig(ctx *cli.Context) (Config, error) {
 // ensure that it is well-formed.
 func ValidateConfig(cfg *Config) error {
 	// Sanity check log level.
+	if cfg.LogLevel == "" {
+		cfg.LogLevel = "debug"
+	}
+
 	_, err := log.LvlFromString(cfg.LogLevel)
 	if err != nil {
 		return err

go/batch-submitter/drivers/proposer/driver.go

+package proposer
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"fmt"
+	"math/big"
+	"time"
+
+	"github.com/ethereum-optimism/optimism/go/batch-submitter/bindings/ctc"
+	"github.com/ethereum-optimism/optimism/go/batch-submitter/bindings/scc"
+	"github.com/ethereum-optimism/optimism/go/batch-submitter/metrics"
+	l2types "github.com/ethereum-optimism/optimism/l2geth/core/types"
+	l2ethclient "github.com/ethereum-optimism/optimism/l2geth/ethclient"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/ethclient"
+)
+
+var bigOne = new(big.Int).SetUint64(1) //nolint:unused
+
+type Config struct {
+	Name        string
+	L1Client    *ethclient.Client
+	L2Client    *l2ethclient.Client
+	BlockOffset uint64
+	MaxTxSize   uint64
+	SCCAddr     common.Address
+	CTCAddr     common.Address
+	ChainID     *big.Int
+	PrivKey     *ecdsa.PrivateKey
+}
+
+type Driver struct {
+	cfg         Config
+	sccContract *scc.StateCommitmentChain
+	ctcContract *ctc.CanonicalTransactionChain
+	walletAddr  common.Address
+	metrics     *metrics.Metrics
+}
+
+func NewDriver(cfg Config) (*Driver, error) {
+	sccContract, err := scc.NewStateCommitmentChain(
+		cfg.SCCAddr, cfg.L1Client,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	ctcContract, err := ctc.NewCanonicalTransactionChain(
+		cfg.CTCAddr, cfg.L1Client,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	walletAddr := crypto.PubkeyToAddress(cfg.PrivKey.PublicKey)
+
+	return &Driver{
+		cfg:         cfg,
+		sccContract: sccContract,
+		ctcContract: ctcContract,
+		walletAddr:  walletAddr,
+		metrics:     metrics.NewMetrics(cfg.Name),
+	}, nil
+}
+
+// Name is an identifier used to prefix logs for a particular service.
+func (d *Driver) Name() string {
+	return d.cfg.Name
+}
+
+// WalletAddr is the wallet address used to pay for batch transaction fees.
+func (d *Driver) WalletAddr() common.Address {
+	return d.walletAddr
+}
+
+// Metrics returns the subservice telemetry object.
+func (d *Driver) Metrics() *metrics.Metrics {
+	return d.metrics
+}
+
+// GetBatchBlockRange returns the start and end L2 block heights that need to be
+// processed. Note that the end value is *exclusive*, therefore if the returned
+// values are identical nothing needs to be processed.
+func (d *Driver) GetBatchBlockRange(
+	ctx context.Context) (*big.Int, *big.Int, error) {
+
+	blockOffset := new(big.Int).SetUint64(d.cfg.BlockOffset)
+	maxBatchSize := new(big.Int).SetUint64(1)
+
+	start, err := d.sccContract.GetTotalElements(&bind.CallOpts{
+		Pending: false,
+		Context: ctx,
+	})
+	if err != nil {
+		return nil, nil, err
+	}
+	start.Add(start, blockOffset)
+
+	totalElements, err := d.ctcContract.GetTotalElements(&bind.CallOpts{
+		Pending: false,
+		Context: ctx,
+	})
+	if err != nil {
+		return nil, nil, err
+	}
+	totalElements.Add(totalElements, blockOffset)
+
+	// Take min(start + blockOffset + maxBatchSize, totalElements).
+	end := new(big.Int).Add(start, maxBatchSize)
+	if totalElements.Cmp(end) < 0 {
+		end.Set(totalElements)
+	}
+
+	if start.Cmp(end) > 0 {
+		return nil, nil, fmt.Errorf("invalid range, "+
+			"end(%v) < start(%v)", end, start)
+	}
+
+	return start, end, nil
+}
+
+// SubmitBatchTx transforms the L2 blocks between start and end into a batch
+// transaction using the given nonce and gasPrice. The final transaction is
+// published and returned to the call.
+func (d *Driver) SubmitBatchTx(
+	ctx context.Context,
+	start, end, nonce, gasPrice *big.Int) (*types.Transaction, error) {
+
+	batchTxBuildStart := time.Now()
+
+	var blocks []*l2types.Block
+	for i := new(big.Int).Set(start); i.Cmp(end) < 0; i.Add(i, bigOne) {
+		block, err := d.cfg.L2Client.BlockByNumber(ctx, i)
+		if err != nil {
+			return nil, err
+		}
+
+		blocks = append(blocks, block)
+
+		// TODO(conner): remove when moving to multiple blocks
+		break //nolint
+	}
+
+	var stateRoots = make([][32]byte, 0, len(blocks))
+	for _, block := range blocks {
+		stateRoots = append(stateRoots, block.Root())
+	}
+
+	batchTxBuildTime := float64(time.Since(batchTxBuildStart) / time.Millisecond)
+	d.metrics.BatchTxBuildTime.Set(batchTxBuildTime)
+	d.metrics.NumTxPerBatch.Observe(float64(len(blocks)))
+
+	opts, err := bind.NewKeyedTransactorWithChainID(
+		d.cfg.PrivKey, d.cfg.ChainID,
+	)
+	if err != nil {
+		return nil, err
+	}
+	opts.Nonce = nonce
+	opts.Context = ctx
+	opts.GasPrice = gasPrice
+
+	blockOffset := new(big.Int).SetUint64(d.cfg.BlockOffset)
+	offsetStartsAtIndex := new(big.Int).Sub(start, blockOffset)
+
+	return d.sccContract.AppendStateBatch(opts, stateRoots, offsetStartsAtIndex)
+}

go/batch-submitter/drivers/sequencer/driver.go

+package sequencer
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"encoding/hex"
+	"fmt"
+	"math/big"
+	"strings"
+	"time"
+
+	"github.com/ethereum-optimism/optimism/go/batch-submitter/bindings/ctc"
+	"github.com/ethereum-optimism/optimism/go/batch-submitter/metrics"
+	l2types "github.com/ethereum-optimism/optimism/l2geth/core/types"
+	l2ethclient "github.com/ethereum-optimism/optimism/l2geth/ethclient"
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/ethclient"
+	"github.com/ethereum/go-ethereum/log"
+)
+
+const (
+	appendSequencerBatchMethodName = "appendSequencerBatch"
+)
+
+var bigOne = new(big.Int).SetUint64(1)
+
+type Config struct {
+	Name        string
+	L1Client    *ethclient.Client
+	L2Client    *l2ethclient.Client
+	BlockOffset uint64
+	MaxTxSize   uint64
+	CTCAddr     common.Address
+	ChainID     *big.Int
+	PrivKey     *ecdsa.PrivateKey
+}
+
+type Driver struct {
+	cfg            Config
+	ctcContract    *ctc.CanonicalTransactionChain
+	rawCtcContract *bind.BoundContract
+	walletAddr     common.Address
+	ctcABI         *abi.ABI
+	metrics        *metrics.Metrics
+}
+
+func NewDriver(cfg Config) (*Driver, error) {
+	ctcContract, err := ctc.NewCanonicalTransactionChain(
+		cfg.CTCAddr, cfg.L1Client,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	parsed, err := abi.JSON(strings.NewReader(
+		ctc.CanonicalTransactionChainABI,
+	))
+	if err != nil {
+		return nil, err
+	}
+
+	ctcABI, err := ctc.CanonicalTransactionChainMetaData.GetAbi()
+	if err != nil {
+		return nil, err
+	}
+
+	rawCtcContract := bind.NewBoundContract(
+		cfg.CTCAddr, parsed, cfg.L1Client, cfg.L1Client,
+		cfg.L1Client,
+	)
+
+	walletAddr := crypto.PubkeyToAddress(cfg.PrivKey.PublicKey)
+
+	return &Driver{
+		cfg:            cfg,
+		ctcContract:    ctcContract,
+		rawCtcContract: rawCtcContract,
+		walletAddr:     walletAddr,
+		ctcABI:         ctcABI,
+		metrics:        metrics.NewMetrics(cfg.Name),
+	}, nil
+}
+
+// Name is an identifier used to prefix logs for a particular service.
+func (d *Driver) Name() string {
+	return d.cfg.Name
+}
+
+// WalletAddr is the wallet address used to pay for batch transaction fees.
+func (d *Driver) WalletAddr() common.Address {
+	return d.walletAddr
+}
+
+// Metrics returns the subservice telemetry object.
+func (d *Driver) Metrics() *metrics.Metrics {
+	return d.metrics
+}
+
+// GetBatchBlockRange returns the start and end L2 block heights that need to be
+// processed. Note that the end value is *exclusive*, therefore if the returned
+// values are identical nothing needs to be processed.
+func (d *Driver) GetBatchBlockRange(
+	ctx context.Context) (*big.Int, *big.Int, error) {
+
+	blockOffset := new(big.Int).SetUint64(d.cfg.BlockOffset)
+
+	start, err := d.ctcContract.GetTotalElements(&bind.CallOpts{
+		Pending: false,
+		Context: ctx,
+	})
+	if err != nil {
+		return nil, nil, err
+	}
+	start.Add(start, blockOffset)
+
+	latestHeader, err := d.cfg.L2Client.HeaderByNumber(ctx, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// Add one because end is *exclusive*.
+	end := new(big.Int).Add(latestHeader.Number, bigOne)
+
+	if start.Cmp(end) > 0 {
+		return nil, nil, fmt.Errorf("invalid range, "+
+			"end(%v) < start(%v)", end, start)
+	}
+
+	return start, end, nil
+}
+
+// SubmitBatchTx transforms the L2 blocks between start and end into a batch
+// transaction using the given nonce and gasPrice. The final transaction is
+// published and returned to the call.
+func (d *Driver) SubmitBatchTx(
+	ctx context.Context,
+	start, end, nonce, gasPrice *big.Int) (*types.Transaction, error) {
+
+	name := d.cfg.Name
+
+	log.Info(name+" submitting batch tx", "start", start, "end", end,
+		"gasPrice", gasPrice)
+
+	batchTxBuildStart := time.Now()
+
+	var blocks []*l2types.Block
+	for i := new(big.Int).Set(start); i.Cmp(end) < 0; i.Add(i, bigOne) {
+		block, err := d.cfg.L2Client.BlockByNumber(ctx, i)
+		if err != nil {
+			return nil, err
+		}
+
+		blocks = append(blocks, block)
+
+		// TODO(conner): remove when moving to multiple blocks
+		break //nolint
+	}
+
+	var batchElements = make([]BatchElement, 0, len(blocks))
+	for _, block := range blocks {
+		batchElements = append(batchElements, BatchElementFromBlock(block))
+	}
+
+	shouldStartAt := start.Uint64()
+	batchParams, err := GenSequencerBatchParams(
+		shouldStartAt, d.cfg.BlockOffset, batchElements,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	log.Info(name+" batch params", "params", fmt.Sprintf("%#v", batchParams))
+
+	batchArguments, err := batchParams.Serialize()
+	if err != nil {
+		return nil, err
+	}
+
+	appendSequencerBatchID := d.ctcABI.Methods[appendSequencerBatchMethodName].ID
+	batchCallData := append(appendSequencerBatchID, batchArguments...)
+
+	if uint64(len(batchCallData)) > d.cfg.MaxTxSize {
+		panic("call data too large")
+	}
+
+	// Record the batch_tx_build_time.
+	batchTxBuildTime := float64(time.Since(batchTxBuildStart) / time.Millisecond)
+	d.metrics.BatchTxBuildTime.Set(batchTxBuildTime)
+	d.metrics.NumTxPerBatch.Observe(float64(len(blocks)))
+
+	log.Info(name+" batch call data", "data", hex.EncodeToString(batchCallData))
+
+	opts, err := bind.NewKeyedTransactorWithChainID(
+		d.cfg.PrivKey, d.cfg.ChainID,
+	)
+	if err != nil {
+		return nil, err
+	}
+	opts.Nonce = nonce
+	opts.Context = ctx
+	opts.GasPrice = gasPrice
+
+	return d.rawCtcContract.RawTransact(opts, batchCallData)
+}

go/batch-submitter/go.mod

@@ -3,10 +3,9 @@ module github.com/ethereum-optimism/optimism/go/batch-submitter
 go 1.16
 
 require (
-	github.com/btcsuite/btcd v0.22.0-beta // indirect
 	github.com/decred/dcrd/hdkeychain/v3 v3.0.0
 	github.com/ethereum-optimism/optimism/l2geth v1.0.0
-	github.com/ethereum/go-ethereum v1.10.11
+	github.com/ethereum/go-ethereum v1.10.12
 	github.com/getsentry/sentry-go v0.11.0
 	github.com/prometheus/client_golang v1.11.0
 	github.com/stretchr/testify v1.7.0

go/batch-submitter/go.sum

@@ -42,7 +42,6 @@ github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAE
 github.com/Shopify/goreferrer v0.0.0-20181106222321-ec9c9a553398/go.mod h1:a1uqRtAwp2Xwc6WNPJEufxJ7fx3npB4UV/JOLmbu5I0=
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 h1:fLjPD/aNc3UIOA6tDi6QXUemppXK3P9BI7mr2hd6gx8=
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
-github.com/VictoriaMetrics/fastcache v1.5.7/go.mod h1:ptDBkNMQI4RtmVo8VS/XwRY6RoTu1dAWCbrk+6WsEM8=
 github.com/VictoriaMetrics/fastcache v1.6.0 h1:C/3Oi3EiBCqufydp1neRZkqcwmEiuRT9c3fqvvgKm5o=
 github.com/VictoriaMetrics/fastcache v1.6.0/go.mod h1:0qHz5QP0GMX4pfmMA/zt5RgfNuXJrTP0zS7DqpHGGTw=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
@@ -79,7 +78,6 @@ github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bmizerany/pat v0.0.0-20170815010413-6226ea591a40/go.mod h1:8rLXio+WjiTceGBHIoTvn60HIbs7Hm7bcHjyrSqYB9c=
 github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx27Ps=
-github.com/btcsuite/btcd v0.0.0-20171128150713-2e60448ffcc6/go.mod h1:Dmm/EzmjnCiweXmzRIAiUWCInVmPgjkzgv5k4tVyXiQ=
 github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
 github.com/btcsuite/btcd v0.22.0-beta h1:LTDpDKUM5EeOFBPM8IXpinEcmZ6FWfNZbE3lfrfdnWo=
 github.com/btcsuite/btcd v0.22.0-beta/go.mod h1:9n5ntfhhHQBIhUvlhDvD3Qg6fRUj4jkN0VB8L8svzOA=
@@ -105,7 +103,6 @@ github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWR
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cloudflare/cloudflare-go v0.10.2-0.20190916151808-a80f83b9add9/go.mod h1:1MxXX1Ux4x6mqPmjkUgTP1CdXIBXKX7T+Jk9Gxrmx+U=
 github.com/cloudflare/cloudflare-go v0.14.0/go.mod h1:EnwdgGMaFOruiPZRFSgn+TsQ3hQ7C/YWzIGLeu5c304=
 github.com/codegangsta/inject v0.0.0-20150114235600-33e0aa1cb7c0/go.mod h1:4Zcjuz89kmFXt9morQgcfYZAYZ5n8WHjt81YYWIwtTM=
 github.com/consensys/bavard v0.1.8-0.20210406032232-f3452dc9b572/go.mod h1:Bpd0/3mZuaj6Sj+PqrmIquiOKy397AKGThQPaGzNXAQ=
@@ -163,7 +160,6 @@ github.com/dop251/goja v0.0.0-20211011172007-d99e4b8cbf48/go.mod h1:R9ET47fwRVRP
 github.com/dop251/goja_nodejs v0.0.0-20210225215109-d91c329300e7/go.mod h1:hn7BA7c8pLvoGndExHudxTDKZ84Pyvv+90pbBjbTz0Y=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/eclipse/paho.mqtt.golang v1.2.0/go.mod h1:H9keYFcgq3Qr5OUJm/JZI/i6U7joQ8SYLhZwfeOo6Ts=
-github.com/edsrzf/mmap-go v0.0.0-20160512033002-935e0e8a636c/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaBNrHW5M=
 github.com/edsrzf/mmap-go v1.0.0 h1:CEBF7HpRnUCSJgGUb5h1Gm7e3VkmVDrR8lvWVLtrOFw=
 github.com/edsrzf/mmap-go v1.0.0/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaBNrHW5M=
 github.com/eknkc/amber v0.0.0-20171010120322-cdade1c07385/go.mod h1:0vRUJqYpeSZifjYj7uP3BG/gKcuzL9xWVV/Y+cK33KM=
@@ -172,13 +168,11 @@ github.com/elastic/gosigar v0.8.1-0.20180330100440-37f05ff46ffa/go.mod h1:cdorVV
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/etcd-io/bbolt v1.3.3/go.mod h1:ZF2nL25h33cCyBtcyWeZ2/I3HQOfTP+0PIEvHjkjCrw=
-github.com/ethereum/go-ethereum v1.10.11 h1:KKIcwpmur9iTaVbR2dxlHu+peHVhU+/KX//NWvT1n9U=
-github.com/ethereum/go-ethereum v1.10.11/go.mod h1:W3yfrFyL9C1pHcwY5hmRHVDaorTiQxhYBkKyu5mEDHw=
+github.com/ethereum/go-ethereum v1.10.12 h1:el/KddB3gLEsnNgGQ3SQuZuiZjwnFTYHe5TwUet5Om4=
+github.com/ethereum/go-ethereum v1.10.12/go.mod h1:W3yfrFyL9C1pHcwY5hmRHVDaorTiQxhYBkKyu5mEDHw=
 github.com/fasthttp-contrib/websocket v0.0.0-20160511215533-1f3b11f56072/go.mod h1:duJ4Jxv5lDcvg4QuQr0oowTf7dz4/CR8NtyCooz9HL8=
-github.com/fatih/color v1.3.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
-github.com/fjl/memsize v0.0.0-20180418122429-ca190fb6ffbc/go.mod h1:VvhXpOYNQvB+uIk2RvXzuaQtkQJzzIx6lSBe1xv7hi0=
 github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 h1:FtmdgXiUlNeRsoNMFlKLDt+S+6hbjVMEW6RGQ7aUf7c=
 github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5/go.mod h1:VvhXpOYNQvB+uIk2RvXzuaQtkQJzzIx6lSBe1xv7hi0=
 github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
@@ -234,7 +228,6 @@ github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfb
 github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.2-0.20190517061210-b285ee9cfc6c/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
 github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
@@ -245,7 +238,6 @@ github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw
 github.com/golang/protobuf v1.4.3 h1:JjCZWpVbqXDqFVmTfYWEVTMIYrL/NPdPSCHPJ0T/raM=
 github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
-github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
 github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
@@ -259,7 +251,6 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.4.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
@@ -277,18 +268,15 @@ github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
-github.com/gorilla/websocket v1.4.1-0.20190629185528-ae1634f6a989/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
 github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
-github.com/graph-gophers/graphql-go v0.0.0-20191115155744-f33e81362277/go.mod h1:9CQHMSxwO4MprSdzoIEobiHpoLtHm77vfxsvsIN5Vuc=
 github.com/graph-gophers/graphql-go v0.0.0-20201113091052-beb923fada29/go.mod h1:9CQHMSxwO4MprSdzoIEobiHpoLtHm77vfxsvsIN5Vuc=
 github.com/hashicorp/go-bexpr v0.1.10 h1:9kuI5PFotCboP3dkDYFr/wi0gg0QVbSNz5oFRpxn4uE=
 github.com/hashicorp/go-bexpr v0.1.10/go.mod h1:oxlubA2vC/gFVfX1A6JGp7ls7uCDlfJn732ehYYg+g0=
 github.com/hashicorp/go-version v1.2.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
-github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
 github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d h1:dg1dEPuWpEqDnvIw251EVy4zlP8gWbsGj4BsUKCRpYs=
 github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
@@ -297,7 +285,6 @@ github.com/holiman/bloomfilter/v2 v2.0.3/go.mod h1:zpoh+gs7qcpqrHr3dB55AMiJwo0iU
 github.com/holiman/uint256 v1.2.0 h1:gpSYcPLWGv4sG43I2mVLiDZCNDh/EpGjSk8tmtxitHM=
 github.com/holiman/uint256 v1.2.0/go.mod h1:y4ga/t+u+Xwd7CpDgZESaRcWy0I7XMlTMA25ApIH5Jw=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
-github.com/huin/goupnp v1.0.0/go.mod h1:n9v9KO1tAxYH82qOn+UTIFQDmx5n1Zxd/ClZDMX7Bnc=
 github.com/huin/goupnp v1.0.2 h1:RfGLP+h3mvisuWEyybxNq5Eft3NWhHLPeUN72kpKZoI=
 github.com/huin/goupnp v1.0.2/go.mod h1:0dxJBVBHqTMjIUMkESDTNgOOx/Mw5wYIfyFmdzSamkM=
 github.com/huin/goutil v0.0.0-20170803182201-1ca381bf3150/go.mod h1:PpLOETDnJ0o3iZrZfqZzyLl6l7F3c6L1oWn7OICBi6o=
@@ -305,7 +292,6 @@ github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:
 github.com/imkira/go-interpol v1.1.0/go.mod h1:z0h2/2T3XF8kyEPpRgJ3kmNv+C43p+I/CoI+jC3w2iA=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/influxdata/flux v0.65.1/go.mod h1:J754/zds0vvpfwuq7Gc2wRdVwEodfpCFM7mYlOw2LqY=
-github.com/influxdata/influxdb v1.2.3-0.20180221223340-01288bdb0883/go.mod h1:qZna6X/4elxqT3yI9iZYdZrWWdeFOOprn86kgg4+IzY=
 github.com/influxdata/influxdb v1.8.3/go.mod h1:JugdFhsvvI8gadxOI6noqNeeBHvWNTbfYGtiAn+2jhI=
 github.com/influxdata/influxdb-client-go/v2 v2.4.0/go.mod h1:vLNHdxTJkIf2mSLvGrpj8TCcISApPoXkaxP8g9uRlW8=
 github.com/influxdata/influxql v1.1.1-0.20200828144457-65d3ef77d385/go.mod h1:gHp9y86a/pxhjJ+zMjNXiQAA197Xk9wLxaz+fGG+kWk=
@@ -339,13 +325,11 @@ github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1
 github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/XSXhF0NWZEnDohbsk=
 github.com/jsternberg/zap-logfmt v1.0.0/go.mod h1:uvPs/4X51zdkcm5jXl5SYoN+4RK21K8mysFmDaM/h+o=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
-github.com/julienschmidt/httprouter v1.1.1-0.20170430222011-975b5c4c7c21/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
 github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
 github.com/jwilder/encoding v0.0.0-20170811194829-b4e1701a28ef/go.mod h1:Ct9fl0F6iIOGgxJ5npU/IUOhOhqlVrGjyIZc8/MagT0=
 github.com/k0kubun/colorstring v0.0.0-20150214042306-9440f1994b88/go.mod h1:3w7q1U84EfirKl04SVQ/s7nPm1ZPhiXd34z40TNz36k=
-github.com/karalabe/usb v0.0.0-20190919080040-51dc0efba356/go.mod h1:Od972xHfMJowv7NGVDiWVxk2zxnWgjLlJzE+F4F7AGU=
 github.com/karalabe/usb v0.0.0-20211005121534-4c5740d64559/go.mod h1:Od972xHfMJowv7NGVDiWVxk2zxnWgjLlJzE+F4F7AGU=
 github.com/kataras/golog v0.0.10/go.mod h1:yJ8YKCmyL+nWjERB90Qwn+bdyBZsaQwU3bTVFgkFIp8=
 github.com/kataras/iris/v12 v12.1.8/go.mod h1:LMYy4VlP67TQ3Zgriz8RE2h2kMZV2SgMYbq3UhfoFmE=
@@ -383,7 +367,6 @@ github.com/mailru/easyjson v0.0.0-20190614124828-94de47d64c63/go.mod h1:C1wdFJiN
 github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/matryer/moq v0.0.0-20190312154309-6cfb0558e1bd/go.mod h1:9ELz6aaclSIGnZBoaSLZ3NAl1VTufbOrXBPvtcy6WiQ=
 github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
-github.com/mattn/go-colorable v0.1.0/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
 github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-colorable v0.1.7/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
 github.com/mattn/go-colorable v0.1.8 h1:c1ghPdyEDarC70ftn0y+A/Ee++9zz8ljHG1b13eJ0s8=
@@ -391,14 +374,12 @@ github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope
 github.com/mattn/go-ieproxy v0.0.0-20190610004146-91bb50d98149/go.mod h1:31jz6HNzdxOmlERGGEc4v/dMssOfmp2p5bT/okiKFFc=
 github.com/mattn/go-ieproxy v0.0.0-20190702010315-6dee0af9227d/go.mod h1:31jz6HNzdxOmlERGGEc4v/dMssOfmp2p5bT/okiKFFc=
 github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
-github.com/mattn/go-isatty v0.0.5-0.20180830101745-3fb116b82035/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.7/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
 github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
 github.com/mattn/go-runewidth v0.0.3/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
-github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mattn/go-sqlite3 v1.11.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
@@ -430,8 +411,6 @@ github.com/nats-io/nkeys v0.1.0/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxzi
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
 github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
-github.com/olekukonko/tablewriter v0.0.1/go.mod h1:vsDQFd/mU46D+Z4whnwzcISnGGzXWMclvtLoiIKAKIo=
-github.com/olekukonko/tablewriter v0.0.2-0.20190409134802-7e037d187b0c/go.mod h1:vsDQFd/mU46D+Z4whnwzcISnGGzXWMclvtLoiIKAKIo=
 github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
@@ -483,7 +462,6 @@ github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsT
 github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
 github.com/prometheus/procfs v0.6.0 h1:mxy4L2jP6qMonqmq+aTtOx1ifVWUgG/TAmntgbh3xv4=
 github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
-github.com/prometheus/tsdb v0.6.2-0.20190402121629-4f204dcbc150/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
 github.com/prometheus/tsdb v0.7.1 h1:YZcsG11NqnK4czYLrWd9mpEuAJIHVQLwdrleYfszMAA=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
 github.com/retailnext/hllpp v1.0.1-0.20180308014038-101a6d2f8b52/go.mod h1:RDpi1RftBQPUCDRw6SmxeaREsAaRKnOclghuzp/WRzc=
@@ -491,10 +469,8 @@ github.com/rjeczalik/notify v0.9.1 h1:CLCKso/QK1snAlnhNR/CNvNiFU2saUtjV0bx3EwNeC
 github.com/rjeczalik/notify v0.9.1/go.mod h1:rKwnCoCGeuQnwBtTSPL9Dad03Vh2n40ePRrjvIXnJho=
 github.com/robertkrimen/otto v0.0.0-20191219234010-c382bd3c16ff/go.mod h1:xvqspoSXJTIpemEonrMDFq6XzwHYYgToXWj5eRX1OtY=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
-github.com/rs/cors v0.0.0-20160617231935-a62a804a8a00/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
 github.com/rs/cors v1.7.0 h1:+88SsELBHx5r+hZ8TCkggzSstaWNbDvThkVK8H6f9ik=
 github.com/rs/cors v1.7.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
-github.com/rs/xhandler v0.0.0-20160618193221-ed27b6fd6521/go.mod h1:RvLn4FgxWubrpZHtQLnOf6EwhN2hEMusxZOhcW9H3UQ=
 github.com/russross/blackfriday v1.5.2 h1:HyvC0ARfnZBqnXwABFeSZHpKvJHJJfPz81GNueLj0oo=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q=
@@ -536,7 +512,6 @@ github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81P
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/syndtr/goleveldb v1.0.1-0.20190923125748-758128399b1d/go.mod h1:9OrXJhf154huy1nPWmuSrkgjPUtUNhA+Zmy+6AESzuA=
 github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 h1:epCh84lMvA70Z7CTTCmYQn2CKbY8j86K7/FAIr141uY=
 github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7/go.mod h1:q4W45IWZaF22tdD+VEXcAWRA037jwmWEB5VWYORlTpc=
 github.com/tinylib/msgp v1.0.2/go.mod h1:+d+yLhGm8mzTaHzB+wgMYrodPfmZrzkirds8fDWklFE=
@@ -550,7 +525,6 @@ github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGr
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
 github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
 github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY=
-github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
 github.com/urfave/cli v1.22.5 h1:lNq9sAHXK2qfdI8W+GRItjCEkI+2oR4d+MEHy1CKXoU=
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 github.com/urfave/cli/v2 v2.3.0/go.mod h1:LJmUH05zAU44vOAcrfzZQKsZbVcdbOG8rtL3/XcUArI=
@@ -627,7 +601,6 @@ golang.org/x/net v0.0.0-20180719180050-a680a1efc54d/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20181011144130-49bb7cea24b1/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -824,7 +797,6 @@ gopkg.in/ini.v1 v1.51.1/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/mgo.v2 v2.0.0-20180705113604-9856a29383ce/go.mod h1:yeKp02qBN3iKW1OzL3MGk2IdtZzaj7SFntXj72NppTA=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce h1:+JknDZhAj8YMt7GC73Ei8pv4MzjDUNPHgQWJdtMAaDU=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce/go.mod h1:5AcXVHNjg+BDxry382+8OKon8SEWiKktQR07RKPsv1c=
-gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200316214253-d7b0ff38cac9/go.mod h1:uAJfkITjFhyEEuUfm7bsmCZRbW5WRq8s9EY8HZ6hCns=
 gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200619000410-60c24ae608a6/go.mod h1:uAJfkITjFhyEEuUfm7bsmCZRbW5WRq8s9EY8HZ6hCns=
 gopkg.in/sourcemap.v1 v1.0.5/go.mod h1:2RlvNNSMglmRrcvhfuzp4hQHwOtjxlbjX7UPY/GXb78=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=

go/batch-submitter/metrics/metrics.go

+package metrics
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+type Metrics struct {
+	// ETHBalance tracks the amount of ETH in the submitter's account.
+	ETHBalance prometheus.Gauge
+
+	// BatchSizeInBytes tracks the size of batch submission transactions.
+	BatchSizeInBytes prometheus.Histogram
+
+	// NumTxPerBatch tracks the number of L2 transactions in each batch
+	// submission.
+	NumTxPerBatch prometheus.Histogram
+
+	// SubmissionGasUsed tracks the amount of gas used to submit each batch.
+	SubmissionGasUsed prometheus.Histogram
+
+	// BatchsSubmitted tracks the total number of successful batch submissions.
+	BatchesSubmitted prometheus.Counter
+
+	// FailedSubmissions tracks the total number of failed batch submissions.
+	FailedSubmissions prometheus.Counter
+
+	// BatchTxBuildTime tracks the duration it takes to construct a batch
+	// transaction.
+	BatchTxBuildTime prometheus.Gauge
+
+	// BatchConfirmationTime tracks the duration it takes to confirm a batch
+	// transaction.
+	BatchConfirmationTime prometheus.Gauge
+}
+
+func NewMetrics(subsystem string) *Metrics {
+	return &Metrics{
+		ETHBalance: promauto.NewGauge(prometheus.GaugeOpts{
+			Name:      "batch_submitter_eth_balance",
+			Help:      "ETH balance of the batch submitter",
+			Subsystem: subsystem,
+		}),
+		BatchSizeInBytes: promauto.NewHistogram(prometheus.HistogramOpts{
+			Name:      "batch_submitter_batch_size_in_bytes",
+			Help:      "Size of batches in bytes",
+			Subsystem: subsystem,
+		}),
+		NumTxPerBatch: promauto.NewHistogram(prometheus.HistogramOpts{
+			Name:      "batch_submitter_num_txs_per_batch",
+			Help:      "Number of transaction in each batch",
+			Subsystem: subsystem,
+		}),
+		SubmissionGasUsed: promauto.NewHistogram(prometheus.HistogramOpts{
+			Name:      "batch_submitter_submission_gas_used",
+			Help:      "Gas used to submit each batch",
+			Subsystem: subsystem,
+		}),
+		BatchesSubmitted: promauto.NewCounter(prometheus.CounterOpts{
+			Name:      "batch_submitter_batches_submitted",
+			Help:      "Count of batches submitted",
+			Subsystem: subsystem,
+		}),
+		FailedSubmissions: promauto.NewCounter(prometheus.CounterOpts{
+			Name:      "batch_submitter_failed_submissions",
+			Help:      "Count of failed batch submissions",
+			Subsystem: subsystem,
+		}),
+		BatchTxBuildTime: promauto.NewGauge(prometheus.GaugeOpts{
+			Name:      "batch_submitter_batch_tx_build_time",
+			Help:      "Time to construct batch transactions",
+			Subsystem: subsystem,
+		}),
+		BatchConfirmationTime: promauto.NewGauge(prometheus.GaugeOpts{
+			Name:      "batch_submitter_batch_confirmation_time",
+			Help:      "Time to confirm batch transactions",
+			Subsystem: subsystem,
+		}),
+	}
+}

go/batch-submitter/service.go

+package batchsubmitter
+
+import (
+	"context"
+	"math/big"
+	"sync"
+	"time"
+
+	"github.com/ethereum-optimism/optimism/go/batch-submitter/metrics"
+	"github.com/ethereum-optimism/optimism/go/batch-submitter/txmgr"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethclient"
+	"github.com/ethereum/go-ethereum/log"
+)
+
+var (
+	// weiToGwei is the conversion rate from wei to gwei.
+	weiToGwei = new(big.Float).SetFloat64(1e-18)
+)
+
+// Driver is an interface for creating and submitting batch transactions for a
+// specific contract.
+type Driver interface {
+	// Name is an identifier used to prefix logs for a particular service.
+	Name() string
+
+	// WalletAddr is the wallet address used to pay for batch transaction
+	// fees.
+	WalletAddr() common.Address
+
+	// Metrics returns the subservice telemetry object.
+	Metrics() *metrics.Metrics
+
+	// GetBatchBlockRange returns the start and end L2 block heights that
+	// need to be processed. Note that the end value is *exclusive*,
+	// therefore if the returned values are identical nothing needs to be
+	// processed.
+	GetBatchBlockRange(ctx context.Context) (*big.Int, *big.Int, error)
+
+	// SubmitBatchTx transforms the L2 blocks between start and end into a
+	// batch transaction using the given nonce and gasPrice. The final
+	// transaction is published and returned to the call.
+	SubmitBatchTx(
+		ctx context.Context,
+		start, end, nonce, gasPrice *big.Int,
+	) (*types.Transaction, error)
+}
+
+type ServiceConfig struct {
+	Context         context.Context
+	Driver          Driver
+	PollInterval    time.Duration
+	L1Client        *ethclient.Client
+	TxManagerConfig txmgr.Config
+}
+
+type Service struct {
+	cfg    ServiceConfig
+	ctx    context.Context
+	cancel func()
+
+	txMgr   txmgr.TxManager
+	metrics *metrics.Metrics
+
+	wg sync.WaitGroup
+}
+
+func NewService(cfg ServiceConfig) *Service {
+	ctx, cancel := context.WithCancel(cfg.Context)
+
+	txMgr := txmgr.NewSimpleTxManager(
+		cfg.Driver.Name(), cfg.TxManagerConfig, cfg.L1Client,
+	)
+
+	return &Service{
+		cfg:     cfg,
+		ctx:     ctx,
+		cancel:  cancel,
+		txMgr:   txMgr,
+		metrics: cfg.Driver.Metrics(),
+	}
+}
+
+func (s *Service) Start() error {
+	s.wg.Add(1)
+	go s.eventLoop()
+	return nil
+}
+
+func (s *Service) Stop() error {
+	s.cancel()
+	s.wg.Wait()
+	return nil
+}
+
+func (s *Service) eventLoop() {
+	defer s.wg.Done()
+
+	name := s.cfg.Driver.Name()
+
+	for {
+		select {
+		case <-time.After(s.cfg.PollInterval):
+			// Record the submitter's current ETH balance. This is done first in
+			// case any of the remaining steps fail, we can at least have an
+			// accurate view of the submitter's balance.
+			balance, err := s.cfg.L1Client.BalanceAt(
+				s.ctx, s.cfg.Driver.WalletAddr(), nil,
+			)
+			if err != nil {
+				log.Error(name+" unable to get current balance", "err", err)
+				continue
+			}
+			s.metrics.ETHBalance.Set(weiToGwei64(balance))
+
+			// Determine the range of L2 blocks that the batch submitter has not
+			// processed, and needs to take action on.
+			log.Info(name + " fetching current block range")
+			start, end, err := s.cfg.Driver.GetBatchBlockRange(s.ctx)
+			if err != nil {
+				log.Error(name+" unable to get block range", "err", err)
+				continue
+			}
+
+			// No new updates.
+			if start.Cmp(end) == 0 {
+				log.Info(name+" no updates", "start", start, "end", end)
+				continue
+			}
+			log.Info(name+" block range", "start", start, "end", end)
+
+			// Query for the submitter's current nonce.
+			nonce64, err := s.cfg.L1Client.NonceAt(
+				s.ctx, s.cfg.Driver.WalletAddr(), nil,
+			)
+			if err != nil {
+				log.Error(name+" unable to get current nonce",
+					"err", err)
+				continue
+			}
+			nonce := new(big.Int).SetUint64(nonce64)
+
+			// Construct the transaction submission clousure that will attempt
+			// to send the next transaction at the given nonce and gas price.
+			sendTx := func(
+				ctx context.Context,
+				gasPrice *big.Int,
+			) (*types.Transaction, error) {
+				log.Info(name+" attempting batch tx", "start", start,
+					"end", end, "nonce", nonce,
+					"gasPrice", gasPrice)
+
+				tx, err := s.cfg.Driver.SubmitBatchTx(
+					ctx, start, end, nonce, gasPrice,
+				)
+				if err != nil {
+					return nil, err
+				}
+
+				s.metrics.BatchSizeInBytes.Observe(float64(tx.Size()))
+
+				return tx, nil
+			}
+
+			// Wait until one of our submitted transactions confirms. If no
+			// receipt is received it's likely our gas price was too low.
+			batchConfirmationStart := time.Now()
+			receipt, err := s.txMgr.Send(s.ctx, sendTx)
+			if err != nil {
+				log.Error(name+" unable to publish batch tx",
+					"err", err)
+				s.metrics.FailedSubmissions.Inc()
+				continue
+			}
+
+			// The transaction was successfully submitted.
+			log.Info(name+" batch tx successfully published",
+				"tx_hash", receipt.TxHash)
+			batchConfirmationTime := time.Since(batchConfirmationStart) /
+				time.Millisecond
+			s.metrics.BatchConfirmationTime.Set(float64(batchConfirmationTime))
+			s.metrics.BatchesSubmitted.Inc()
+			s.metrics.SubmissionGasUsed.Observe(float64(receipt.GasUsed))
+
+		case err := <-s.ctx.Done():
+			log.Error(name+" service shutting down", "err", err)
+			return
+		}
+	}
+}
+
+func weiToGwei64(wei *big.Int) float64 {
+	gwei := new(big.Float).SetInt(wei)
+	gwei.Mul(gwei, weiToGwei)
+	gwei64, _ := gwei.Float64()
+	return gwei64
+}

go/batch-submitter/txmgr/txmgr.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"math/big"
+	"strings"
 	"sync"
 	"time"
 
@@ -25,6 +26,8 @@ type SendTxFunc = func(
 
 // Config houses parameters for altering the behavior of a SimpleTxManager.
 type Config struct {
+	Name string
+
 	// MinGasPrice is the minimum gas price (in gwei). This is used as the
 	// initial publication attempt.
 	MinGasPrice *big.Int
@@ -78,13 +81,17 @@ type ReceiptSource interface {
 // SimpleTxManager is a implementation of TxManager that performs linear fee
 // bumping of a tx until it confirms.
 type SimpleTxManager struct {
+	name    string
 	cfg     Config
 	backend ReceiptSource
 }
 
 // NewSimpleTxManager initializes a new SimpleTxManager with the passed Config.
-func NewSimpleTxManager(cfg Config, backend ReceiptSource) *SimpleTxManager {
+func NewSimpleTxManager(
+	name string, cfg Config, backend ReceiptSource) *SimpleTxManager {
+
 	return &SimpleTxManager{
+		name:    name,
 		cfg:     cfg,
 		backend: backend,
 	}
@@ -99,6 +106,8 @@ func NewSimpleTxManager(cfg Config, backend ReceiptSource) *SimpleTxManager {
 func (m *SimpleTxManager) Send(
 	ctx context.Context, sendTx SendTxFunc) (*types.Receipt, error) {
 
+	name := m.name
+
 	// Initialize a wait group to track any spawned goroutines, and ensure
 	// we properly clean up any dangling resources this method generates.
 	// We assert that this is the case thoroughly in our unit tests.
@@ -121,14 +130,18 @@ func (m *SimpleTxManager) Send(
 		// Sign and publish transaction with current gas price.
 		tx, err := sendTx(ctxc, gasPrice)
 		if err != nil {
-			log.Error("Unable to publish transaction",
+			if err == context.Canceled ||
+				strings.Contains(err.Error(), "context canceled") {
+				return
+			}
+			log.Error(name+" unable to publish transaction",
 				"gas_price", gasPrice, "err", err)
 			// TODO(conner): add retry?
 			return
 		}
 
 		txHash := tx.Hash()
-		log.Info("Transaction published successfully", "hash", txHash,
+		log.Info(name+" transaction published successfully", "hash", txHash,
 			"gas_price", gasPrice)
 
 		// Wait for the transaction to be mined, reporting the receipt
@@ -137,7 +150,7 @@ func (m *SimpleTxManager) Send(
 			ctxc, m.backend, tx, m.cfg.ReceiptQueryInterval,
 		)
 		if err != nil {
-			log.Trace("Send tx failed", "hash", txHash,
+			log.Debug(name+" send tx failed", "hash", txHash,
 				"gas_price", gasPrice, "err", err)
 		}
 		if receipt != nil {
@@ -145,7 +158,7 @@ func (m *SimpleTxManager) Send(
 			// if more than one receipt is discovered.
 			select {
 			case receiptChan <- receipt:
-				log.Trace("Send tx succeeded", "hash", txHash,
+				log.Trace(name+" send tx succeeded", "hash", txHash,
 					"gas_price", gasPrice)
 			default:
 			}

go/batch-submitter/txmgr/txmgr_test.go

@@ -83,7 +83,7 @@ type testHarness struct {
 // configuration.
 func newTestHarnessWithConfig(cfg txmgr.Config) *testHarness {
 	backend := newMockBackend()
-	mgr := txmgr.NewSimpleTxManager(cfg, backend)
+	mgr := txmgr.NewSimpleTxManager("TEST", cfg, backend)
 
 	return &testHarness{
 		cfg:     cfg,

go/l2geth-exporter/.envrc

+dotenv .env

go/l2geth-exporter/.gitignore

+.env
+l2geth-exporter

go/l2geth-exporter/Makefile

+SHELL := /bin/bash
+
+VERSION := `git describe --abbrev=0`
+GITCOMMIT := `git rev-parse HEAD`
+BUILDDATE := `date +%Y-%m-%d`
+BUILDUSER := `whoami`
+
+LDFLAGSSTRING +=-X main.GitCommit=$(GITCOMMIT)
+LDFLAGSSTRING +=-X main.GitDate=$(GITDATE)
+LDFLAGSSTRING +=-X main.GitVersion=$(GITVERSION)
+LDFLAGS :=-ldflags "$(LDFLAGSSTRING)"
+
+all: build
+
+build:
+	CGO_ENABLED=0 go build $(LDFLAGS)
+
+clean:
+	rm l2geth-exporter
+
+test:
+	go test -v ./...
+
+lint:
+	golangci-lint run ./...
+
+binding:
+	$(eval temp := $(shell mktemp))
+
+	cat ../../packages/contracts/deployments/mainnet/CanonicalTransactionChain.json \
+		| jq -r .bytecode > $(temp)
+
+	cat ../../packages/contracts/deployments/mainnet/CanonicalTransactionChain.json \
+		| jq .abi \
+		| abigen --pkg bindings \
+		--abi - \
+		--out bindings/CanonicalTransactionChain.go \
+		--type CanonicalTransactionChain \
+		--bin $(temp)
+
+	rm $(temp)

go/l2geth-exporter/bindings/CanonicalTransactionChain.go

+// Code generated - DO NOT EDIT.
+// This file is a generated binding and any manual changes will be lost.
+
+package bindings
+
+import (
+	"errors"
+	"math/big"
+	"strings"
+
+	ethereum "github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/event"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var (
+	_ = errors.New
+	_ = big.NewInt
+	_ = strings.NewReader
+	_ = ethereum.NotFound
+	_ = bind.Bind
+	_ = common.Big1
+	_ = types.BloomLookup
+	_ = event.NewSubscription
+)
+
+// Lib_OVMCodecQueueElement is an auto generated low-level Go binding around an user-defined struct.
+type Lib_OVMCodecQueueElement struct {
+	TransactionHash [32]byte
+	Timestamp       *big.Int
+	BlockNumber     *big.Int
+}
+
+// CanonicalTransactionChainMetaData contains all meta data concerning the CanonicalTransactionChain contract.
+var CanonicalTransactionChainMetaData = &bind.MetaData{
+	ABI: "[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_libAddressManager\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_maxTransactionGasLimit\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"_l2GasDiscountDivisor\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"_enqueueGasCost\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"l2GasDiscountDivisor\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"enqueueGasCost\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"enqueueL2GasPrepaid\",\"type\":\"uint256\"}],\"name\":\"L2GasParamsUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"_startingQueueIndex\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"_numQueueElements\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"_totalElements\",\"type\":\"uint256\"}],\"name\":\"QueueBatchAppended\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"_startingQueueIndex\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"_numQueueElements\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"_totalElements\",\"type\":\"uint256\"}],\"name\":\"SequencerBatchAppended\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"_batchIndex\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes32\",\"name\":\"_batchRoot\",\"type\":\"bytes32\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"_batchSize\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"_prevTotalElements\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"TransactionBatchAppended\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"_l1TxOrigin\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"_target\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"_gasLimit\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"_queueIndex\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"_timestamp\",\"type\":\"uint256\"}],\"name\":\"TransactionEnqueued\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"MAX_ROLLUP_TX_SIZE\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"MIN_ROLLUP_TX_GAS\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"appendSequencerBatch\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"batches\",\"outputs\":[{\"internalType\":\"contractIChainStorageContainer\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_target\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_gasLimit\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"enqueue\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"enqueueGasCost\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"enqueueL2GasPrepaid\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getLastBlockNumber\",\"outputs\":[{\"internalType\":\"uint40\",\"name\":\"\",\"type\":\"uint40\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getLastTimestamp\",\"outputs\":[{\"internalType\":\"uint40\",\"name\":\"\",\"type\":\"uint40\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getNextQueueIndex\",\"outputs\":[{\"internalType\":\"uint40\",\"name\":\"\",\"type\":\"uint40\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getNumPendingQueueElements\",\"outputs\":[{\"internalType\":\"uint40\",\"name\":\"\",\"type\":\"uint40\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_index\",\"type\":\"uint256\"}],\"name\":\"getQueueElement\",\"outputs\":[{\"components\":[{\"internalType\":\"bytes32\",\"name\":\"transactionHash\",\"type\":\"bytes32\"},{\"internalType\":\"uint40\",\"name\":\"timestamp\",\"type\":\"uint40\"},{\"internalType\":\"uint40\",\"name\":\"blockNumber\",\"type\":\"uint40\"}],\"internalType\":\"structLib_OVMCodec.QueueElement\",\"name\":\"_element\",\"type\":\"tuple\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getQueueLength\",\"outputs\":[{\"internalType\":\"uint40\",\"name\":\"\",\"type\":\"uint40\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getTotalBatches\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"_totalBatches\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getTotalElements\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"_totalElements\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"l2GasDiscountDivisor\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"libAddressManager\",\"outputs\":[{\"internalType\":\"contractLib_AddressManager\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"maxTransactionGasLimit\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"string\",\"name\":\"_name\",\"type\":\"string\"}],\"name\":\"resolve\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_l2GasDiscountDivisor\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"_enqueueGasCost\",\"type\":\"uint256\"}],\"name\":\"setGasParams\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]",
+	Bin: 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+}
+
+// CanonicalTransactionChainABI is the input ABI used to generate the binding from.
+// Deprecated: Use CanonicalTransactionChainMetaData.ABI instead.
+var CanonicalTransactionChainABI = CanonicalTransactionChainMetaData.ABI
+
+// CanonicalTransactionChainBin is the compiled bytecode used for deploying new contracts.
+// Deprecated: Use CanonicalTransactionChainMetaData.Bin instead.
+var CanonicalTransactionChainBin = CanonicalTransactionChainMetaData.Bin
+
+// DeployCanonicalTransactionChain deploys a new Ethereum contract, binding an instance of CanonicalTransactionChain to it.
+func DeployCanonicalTransactionChain(auth *bind.TransactOpts, backend bind.ContractBackend, _libAddressManager common.Address, _maxTransactionGasLimit *big.Int, _l2GasDiscountDivisor *big.Int, _enqueueGasCost *big.Int) (common.Address, *types.Transaction, *CanonicalTransactionChain, error) {
+	parsed, err := CanonicalTransactionChainMetaData.GetAbi()
+	if err != nil {
+		return common.Address{}, nil, nil, err
+	}
+	if parsed == nil {
+		return common.Address{}, nil, nil, errors.New("GetABI returned nil")
+	}
+
+	address, tx, contract, err := bind.DeployContract(auth, *parsed, common.FromHex(CanonicalTransactionChainBin), backend, _libAddressManager, _maxTransactionGasLimit, _l2GasDiscountDivisor, _enqueueGasCost)
+	if err != nil {
+		return common.Address{}, nil, nil, err
+	}
+	return address, tx, &CanonicalTransactionChain{CanonicalTransactionChainCaller: CanonicalTransactionChainCaller{contract: contract}, CanonicalTransactionChainTransactor: CanonicalTransactionChainTransactor{contract: contract}, CanonicalTransactionChainFilterer: CanonicalTransactionChainFilterer{contract: contract}}, nil
+}
+
+// CanonicalTransactionChain is an auto generated Go binding around an Ethereum contract.
+type CanonicalTransactionChain struct {
+	CanonicalTransactionChainCaller     // Read-only binding to the contract
+	CanonicalTransactionChainTransactor // Write-only binding to the contract
+	CanonicalTransactionChainFilterer   // Log filterer for contract events
+}
+
+// CanonicalTransactionChainCaller is an auto generated read-only Go binding around an Ethereum contract.
+type CanonicalTransactionChainCaller struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// CanonicalTransactionChainTransactor is an auto generated write-only Go binding around an Ethereum contract.
+type CanonicalTransactionChainTransactor struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// CanonicalTransactionChainFilterer is an auto generated log filtering Go binding around an Ethereum contract events.
+type CanonicalTransactionChainFilterer struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// CanonicalTransactionChainSession is an auto generated Go binding around an Ethereum contract,
+// with pre-set call and transact options.
+type CanonicalTransactionChainSession struct {
+	Contract     *CanonicalTransactionChain // Generic contract binding to set the session for
+	CallOpts     bind.CallOpts              // Call options to use throughout this session
+	TransactOpts bind.TransactOpts          // Transaction auth options to use throughout this session
+}
+
+// CanonicalTransactionChainCallerSession is an auto generated read-only Go binding around an Ethereum contract,
+// with pre-set call options.
+type CanonicalTransactionChainCallerSession struct {
+	Contract *CanonicalTransactionChainCaller // Generic contract caller binding to set the session for
+	CallOpts bind.CallOpts                    // Call options to use throughout this session
+}
+
+// CanonicalTransactionChainTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
+// with pre-set transact options.
+type CanonicalTransactionChainTransactorSession struct {
+	Contract     *CanonicalTransactionChainTransactor // Generic contract transactor binding to set the session for
+	TransactOpts bind.TransactOpts                    // Transaction auth options to use throughout this session
+}
+
+// CanonicalTransactionChainRaw is an auto generated low-level Go binding around an Ethereum contract.
+type CanonicalTransactionChainRaw struct {
+	Contract *CanonicalTransactionChain // Generic contract binding to access the raw methods on
+}
+
+// CanonicalTransactionChainCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
+type CanonicalTransactionChainCallerRaw struct {
+	Contract *CanonicalTransactionChainCaller // Generic read-only contract binding to access the raw methods on
+}
+
+// CanonicalTransactionChainTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
+type CanonicalTransactionChainTransactorRaw struct {
+	Contract *CanonicalTransactionChainTransactor // Generic write-only contract binding to access the raw methods on
+}
+
+// NewCanonicalTransactionChain creates a new instance of CanonicalTransactionChain, bound to a specific deployed contract.
+func NewCanonicalTransactionChain(address common.Address, backend bind.ContractBackend) (*CanonicalTransactionChain, error) {
+	contract, err := bindCanonicalTransactionChain(address, backend, backend, backend)
+	if err != nil {
+		return nil, err
+	}
+	return &CanonicalTransactionChain{CanonicalTransactionChainCaller: CanonicalTransactionChainCaller{contract: contract}, CanonicalTransactionChainTransactor: CanonicalTransactionChainTransactor{contract: contract}, CanonicalTransactionChainFilterer: CanonicalTransactionChainFilterer{contract: contract}}, nil
+}
+
+// NewCanonicalTransactionChainCaller creates a new read-only instance of CanonicalTransactionChain, bound to a specific deployed contract.
+func NewCanonicalTransactionChainCaller(address common.Address, caller bind.ContractCaller) (*CanonicalTransactionChainCaller, error) {
+	contract, err := bindCanonicalTransactionChain(address, caller, nil, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &CanonicalTransactionChainCaller{contract: contract}, nil
+}
+
+// NewCanonicalTransactionChainTransactor creates a new write-only instance of CanonicalTransactionChain, bound to a specific deployed contract.
+func NewCanonicalTransactionChainTransactor(address common.Address, transactor bind.ContractTransactor) (*CanonicalTransactionChainTransactor, error) {
+	contract, err := bindCanonicalTransactionChain(address, nil, transactor, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &CanonicalTransactionChainTransactor{contract: contract}, nil
+}
+
+// NewCanonicalTransactionChainFilterer creates a new log filterer instance of CanonicalTransactionChain, bound to a specific deployed contract.
+func NewCanonicalTransactionChainFilterer(address common.Address, filterer bind.ContractFilterer) (*CanonicalTransactionChainFilterer, error) {
+	contract, err := bindCanonicalTransactionChain(address, nil, nil, filterer)
+	if err != nil {
+		return nil, err
+	}
+	return &CanonicalTransactionChainFilterer{contract: contract}, nil
+}
+
+// bindCanonicalTransactionChain binds a generic wrapper to an already deployed contract.
+func bindCanonicalTransactionChain(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
+	parsed, err := abi.JSON(strings.NewReader(CanonicalTransactionChainABI))
+	if err != nil {
+		return nil, err
+	}
+	return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil
+}
+
+// Call invokes the (constant) contract method with params as input values and
+// sets the output to result. The result type might be a single field for simple
+// returns, a slice of interfaces for anonymous returns and a struct for named
+// returns.
+func (_CanonicalTransactionChain *CanonicalTransactionChainRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
+	return _CanonicalTransactionChain.Contract.CanonicalTransactionChainCaller.contract.Call(opts, result, method, params...)
+}
+
+// Transfer initiates a plain transaction to move funds to the contract, calling
+// its default method if one is available.
+func (_CanonicalTransactionChain *CanonicalTransactionChainRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.Contract.CanonicalTransactionChainTransactor.contract.Transfer(opts)
+}
+
+// Transact invokes the (paid) contract method with params as input values.
+func (_CanonicalTransactionChain *CanonicalTransactionChainRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.Contract.CanonicalTransactionChainTransactor.contract.Transact(opts, method, params...)
+}
+
+// Call invokes the (constant) contract method with params as input values and
+// sets the output to result. The result type might be a single field for simple
+// returns, a slice of interfaces for anonymous returns and a struct for named
+// returns.
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
+	return _CanonicalTransactionChain.Contract.contract.Call(opts, result, method, params...)
+}
+
+// Transfer initiates a plain transaction to move funds to the contract, calling
+// its default method if one is available.
+func (_CanonicalTransactionChain *CanonicalTransactionChainTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.Contract.contract.Transfer(opts)
+}
+
+// Transact invokes the (paid) contract method with params as input values.
+func (_CanonicalTransactionChain *CanonicalTransactionChainTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.Contract.contract.Transact(opts, method, params...)
+}
+
+// MAXROLLUPTXSIZE is a free data retrieval call binding the contract method 0x876ed5cb.
+//
+// Solidity: function MAX_ROLLUP_TX_SIZE() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) MAXROLLUPTXSIZE(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "MAX_ROLLUP_TX_SIZE")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// MAXROLLUPTXSIZE is a free data retrieval call binding the contract method 0x876ed5cb.
+//
+// Solidity: function MAX_ROLLUP_TX_SIZE() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) MAXROLLUPTXSIZE() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.MAXROLLUPTXSIZE(&_CanonicalTransactionChain.CallOpts)
+}
+
+// MAXROLLUPTXSIZE is a free data retrieval call binding the contract method 0x876ed5cb.
+//
+// Solidity: function MAX_ROLLUP_TX_SIZE() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) MAXROLLUPTXSIZE() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.MAXROLLUPTXSIZE(&_CanonicalTransactionChain.CallOpts)
+}
+
+// MINROLLUPTXGAS is a free data retrieval call binding the contract method 0x78f4b2f2.
+//
+// Solidity: function MIN_ROLLUP_TX_GAS() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) MINROLLUPTXGAS(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "MIN_ROLLUP_TX_GAS")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// MINROLLUPTXGAS is a free data retrieval call binding the contract method 0x78f4b2f2.
+//
+// Solidity: function MIN_ROLLUP_TX_GAS() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) MINROLLUPTXGAS() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.MINROLLUPTXGAS(&_CanonicalTransactionChain.CallOpts)
+}
+
+// MINROLLUPTXGAS is a free data retrieval call binding the contract method 0x78f4b2f2.
+//
+// Solidity: function MIN_ROLLUP_TX_GAS() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) MINROLLUPTXGAS() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.MINROLLUPTXGAS(&_CanonicalTransactionChain.CallOpts)
+}
+
+// Batches is a free data retrieval call binding the contract method 0xcfdf677e.
+//
+// Solidity: function batches() view returns(address)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) Batches(opts *bind.CallOpts) (common.Address, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "batches")
+
+	if err != nil {
+		return *new(common.Address), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(common.Address)).(*common.Address)
+
+	return out0, err
+
+}
+
+// Batches is a free data retrieval call binding the contract method 0xcfdf677e.
+//
+// Solidity: function batches() view returns(address)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) Batches() (common.Address, error) {
+	return _CanonicalTransactionChain.Contract.Batches(&_CanonicalTransactionChain.CallOpts)
+}
+
+// Batches is a free data retrieval call binding the contract method 0xcfdf677e.
+//
+// Solidity: function batches() view returns(address)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) Batches() (common.Address, error) {
+	return _CanonicalTransactionChain.Contract.Batches(&_CanonicalTransactionChain.CallOpts)
+}
+
+// EnqueueGasCost is a free data retrieval call binding the contract method 0xe654b1fb.
+//
+// Solidity: function enqueueGasCost() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) EnqueueGasCost(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "enqueueGasCost")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// EnqueueGasCost is a free data retrieval call binding the contract method 0xe654b1fb.
+//
+// Solidity: function enqueueGasCost() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) EnqueueGasCost() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.EnqueueGasCost(&_CanonicalTransactionChain.CallOpts)
+}
+
+// EnqueueGasCost is a free data retrieval call binding the contract method 0xe654b1fb.
+//
+// Solidity: function enqueueGasCost() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) EnqueueGasCost() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.EnqueueGasCost(&_CanonicalTransactionChain.CallOpts)
+}
+
+// EnqueueL2GasPrepaid is a free data retrieval call binding the contract method 0x0b3dfa97.
+//
+// Solidity: function enqueueL2GasPrepaid() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) EnqueueL2GasPrepaid(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "enqueueL2GasPrepaid")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// EnqueueL2GasPrepaid is a free data retrieval call binding the contract method 0x0b3dfa97.
+//
+// Solidity: function enqueueL2GasPrepaid() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) EnqueueL2GasPrepaid() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.EnqueueL2GasPrepaid(&_CanonicalTransactionChain.CallOpts)
+}
+
+// EnqueueL2GasPrepaid is a free data retrieval call binding the contract method 0x0b3dfa97.
+//
+// Solidity: function enqueueL2GasPrepaid() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) EnqueueL2GasPrepaid() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.EnqueueL2GasPrepaid(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetLastBlockNumber is a free data retrieval call binding the contract method 0x5ae6256d.
+//
+// Solidity: function getLastBlockNumber() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) GetLastBlockNumber(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "getLastBlockNumber")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// GetLastBlockNumber is a free data retrieval call binding the contract method 0x5ae6256d.
+//
+// Solidity: function getLastBlockNumber() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) GetLastBlockNumber() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetLastBlockNumber(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetLastBlockNumber is a free data retrieval call binding the contract method 0x5ae6256d.
+//
+// Solidity: function getLastBlockNumber() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) GetLastBlockNumber() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetLastBlockNumber(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetLastTimestamp is a free data retrieval call binding the contract method 0x37899770.
+//
+// Solidity: function getLastTimestamp() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) GetLastTimestamp(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "getLastTimestamp")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// GetLastTimestamp is a free data retrieval call binding the contract method 0x37899770.
+//
+// Solidity: function getLastTimestamp() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) GetLastTimestamp() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetLastTimestamp(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetLastTimestamp is a free data retrieval call binding the contract method 0x37899770.
+//
+// Solidity: function getLastTimestamp() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) GetLastTimestamp() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetLastTimestamp(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetNextQueueIndex is a free data retrieval call binding the contract method 0x7a167a8a.
+//
+// Solidity: function getNextQueueIndex() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) GetNextQueueIndex(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "getNextQueueIndex")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// GetNextQueueIndex is a free data retrieval call binding the contract method 0x7a167a8a.
+//
+// Solidity: function getNextQueueIndex() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) GetNextQueueIndex() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetNextQueueIndex(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetNextQueueIndex is a free data retrieval call binding the contract method 0x7a167a8a.
+//
+// Solidity: function getNextQueueIndex() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) GetNextQueueIndex() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetNextQueueIndex(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetNumPendingQueueElements is a free data retrieval call binding the contract method 0xf722b41a.
+//
+// Solidity: function getNumPendingQueueElements() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) GetNumPendingQueueElements(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "getNumPendingQueueElements")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// GetNumPendingQueueElements is a free data retrieval call binding the contract method 0xf722b41a.
+//
+// Solidity: function getNumPendingQueueElements() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) GetNumPendingQueueElements() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetNumPendingQueueElements(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetNumPendingQueueElements is a free data retrieval call binding the contract method 0xf722b41a.
+//
+// Solidity: function getNumPendingQueueElements() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) GetNumPendingQueueElements() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetNumPendingQueueElements(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetQueueElement is a free data retrieval call binding the contract method 0x2a7f18be.
+//
+// Solidity: function getQueueElement(uint256 _index) view returns((bytes32,uint40,uint40) _element)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) GetQueueElement(opts *bind.CallOpts, _index *big.Int) (Lib_OVMCodecQueueElement, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "getQueueElement", _index)
+
+	if err != nil {
+		return *new(Lib_OVMCodecQueueElement), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(Lib_OVMCodecQueueElement)).(*Lib_OVMCodecQueueElement)
+
+	return out0, err
+
+}
+
+// GetQueueElement is a free data retrieval call binding the contract method 0x2a7f18be.
+//
+// Solidity: function getQueueElement(uint256 _index) view returns((bytes32,uint40,uint40) _element)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) GetQueueElement(_index *big.Int) (Lib_OVMCodecQueueElement, error) {
+	return _CanonicalTransactionChain.Contract.GetQueueElement(&_CanonicalTransactionChain.CallOpts, _index)
+}
+
+// GetQueueElement is a free data retrieval call binding the contract method 0x2a7f18be.
+//
+// Solidity: function getQueueElement(uint256 _index) view returns((bytes32,uint40,uint40) _element)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) GetQueueElement(_index *big.Int) (Lib_OVMCodecQueueElement, error) {
+	return _CanonicalTransactionChain.Contract.GetQueueElement(&_CanonicalTransactionChain.CallOpts, _index)
+}
+
+// GetQueueLength is a free data retrieval call binding the contract method 0xb8f77005.
+//
+// Solidity: function getQueueLength() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) GetQueueLength(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "getQueueLength")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// GetQueueLength is a free data retrieval call binding the contract method 0xb8f77005.
+//
+// Solidity: function getQueueLength() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) GetQueueLength() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetQueueLength(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetQueueLength is a free data retrieval call binding the contract method 0xb8f77005.
+//
+// Solidity: function getQueueLength() view returns(uint40)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) GetQueueLength() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetQueueLength(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetTotalBatches is a free data retrieval call binding the contract method 0xe561dddc.
+//
+// Solidity: function getTotalBatches() view returns(uint256 _totalBatches)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) GetTotalBatches(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "getTotalBatches")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// GetTotalBatches is a free data retrieval call binding the contract method 0xe561dddc.
+//
+// Solidity: function getTotalBatches() view returns(uint256 _totalBatches)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) GetTotalBatches() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetTotalBatches(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetTotalBatches is a free data retrieval call binding the contract method 0xe561dddc.
+//
+// Solidity: function getTotalBatches() view returns(uint256 _totalBatches)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) GetTotalBatches() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetTotalBatches(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetTotalElements is a free data retrieval call binding the contract method 0x7aa63a86.
+//
+// Solidity: function getTotalElements() view returns(uint256 _totalElements)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) GetTotalElements(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "getTotalElements")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// GetTotalElements is a free data retrieval call binding the contract method 0x7aa63a86.
+//
+// Solidity: function getTotalElements() view returns(uint256 _totalElements)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) GetTotalElements() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetTotalElements(&_CanonicalTransactionChain.CallOpts)
+}
+
+// GetTotalElements is a free data retrieval call binding the contract method 0x7aa63a86.
+//
+// Solidity: function getTotalElements() view returns(uint256 _totalElements)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) GetTotalElements() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.GetTotalElements(&_CanonicalTransactionChain.CallOpts)
+}
+
+// L2GasDiscountDivisor is a free data retrieval call binding the contract method 0xccf987c8.
+//
+// Solidity: function l2GasDiscountDivisor() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) L2GasDiscountDivisor(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "l2GasDiscountDivisor")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// L2GasDiscountDivisor is a free data retrieval call binding the contract method 0xccf987c8.
+//
+// Solidity: function l2GasDiscountDivisor() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) L2GasDiscountDivisor() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.L2GasDiscountDivisor(&_CanonicalTransactionChain.CallOpts)
+}
+
+// L2GasDiscountDivisor is a free data retrieval call binding the contract method 0xccf987c8.
+//
+// Solidity: function l2GasDiscountDivisor() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) L2GasDiscountDivisor() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.L2GasDiscountDivisor(&_CanonicalTransactionChain.CallOpts)
+}
+
+// LibAddressManager is a free data retrieval call binding the contract method 0x299ca478.
+//
+// Solidity: function libAddressManager() view returns(address)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) LibAddressManager(opts *bind.CallOpts) (common.Address, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "libAddressManager")
+
+	if err != nil {
+		return *new(common.Address), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(common.Address)).(*common.Address)
+
+	return out0, err
+
+}
+
+// LibAddressManager is a free data retrieval call binding the contract method 0x299ca478.
+//
+// Solidity: function libAddressManager() view returns(address)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) LibAddressManager() (common.Address, error) {
+	return _CanonicalTransactionChain.Contract.LibAddressManager(&_CanonicalTransactionChain.CallOpts)
+}
+
+// LibAddressManager is a free data retrieval call binding the contract method 0x299ca478.
+//
+// Solidity: function libAddressManager() view returns(address)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) LibAddressManager() (common.Address, error) {
+	return _CanonicalTransactionChain.Contract.LibAddressManager(&_CanonicalTransactionChain.CallOpts)
+}
+
+// MaxTransactionGasLimit is a free data retrieval call binding the contract method 0x8d38c6c1.
+//
+// Solidity: function maxTransactionGasLimit() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) MaxTransactionGasLimit(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "maxTransactionGasLimit")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// MaxTransactionGasLimit is a free data retrieval call binding the contract method 0x8d38c6c1.
+//
+// Solidity: function maxTransactionGasLimit() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) MaxTransactionGasLimit() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.MaxTransactionGasLimit(&_CanonicalTransactionChain.CallOpts)
+}
+
+// MaxTransactionGasLimit is a free data retrieval call binding the contract method 0x8d38c6c1.
+//
+// Solidity: function maxTransactionGasLimit() view returns(uint256)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) MaxTransactionGasLimit() (*big.Int, error) {
+	return _CanonicalTransactionChain.Contract.MaxTransactionGasLimit(&_CanonicalTransactionChain.CallOpts)
+}
+
+// Resolve is a free data retrieval call binding the contract method 0x461a4478.
+//
+// Solidity: function resolve(string _name) view returns(address)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCaller) Resolve(opts *bind.CallOpts, _name string) (common.Address, error) {
+	var out []interface{}
+	err := _CanonicalTransactionChain.contract.Call(opts, &out, "resolve", _name)
+
+	if err != nil {
+		return *new(common.Address), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(common.Address)).(*common.Address)
+
+	return out0, err
+
+}
+
+// Resolve is a free data retrieval call binding the contract method 0x461a4478.
+//
+// Solidity: function resolve(string _name) view returns(address)
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) Resolve(_name string) (common.Address, error) {
+	return _CanonicalTransactionChain.Contract.Resolve(&_CanonicalTransactionChain.CallOpts, _name)
+}
+
+// Resolve is a free data retrieval call binding the contract method 0x461a4478.
+//
+// Solidity: function resolve(string _name) view returns(address)
+func (_CanonicalTransactionChain *CanonicalTransactionChainCallerSession) Resolve(_name string) (common.Address, error) {
+	return _CanonicalTransactionChain.Contract.Resolve(&_CanonicalTransactionChain.CallOpts, _name)
+}
+
+// AppendSequencerBatch is a paid mutator transaction binding the contract method 0xd0f89344.
+//
+// Solidity: function appendSequencerBatch() returns()
+func (_CanonicalTransactionChain *CanonicalTransactionChainTransactor) AppendSequencerBatch(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.contract.Transact(opts, "appendSequencerBatch")
+}
+
+// AppendSequencerBatch is a paid mutator transaction binding the contract method 0xd0f89344.
+//
+// Solidity: function appendSequencerBatch() returns()
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) AppendSequencerBatch() (*types.Transaction, error) {
+	return _CanonicalTransactionChain.Contract.AppendSequencerBatch(&_CanonicalTransactionChain.TransactOpts)
+}
+
+// AppendSequencerBatch is a paid mutator transaction binding the contract method 0xd0f89344.
+//
+// Solidity: function appendSequencerBatch() returns()
+func (_CanonicalTransactionChain *CanonicalTransactionChainTransactorSession) AppendSequencerBatch() (*types.Transaction, error) {
+	return _CanonicalTransactionChain.Contract.AppendSequencerBatch(&_CanonicalTransactionChain.TransactOpts)
+}
+
+// Enqueue is a paid mutator transaction binding the contract method 0x6fee07e0.
+//
+// Solidity: function enqueue(address _target, uint256 _gasLimit, bytes _data) returns()
+func (_CanonicalTransactionChain *CanonicalTransactionChainTransactor) Enqueue(opts *bind.TransactOpts, _target common.Address, _gasLimit *big.Int, _data []byte) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.contract.Transact(opts, "enqueue", _target, _gasLimit, _data)
+}
+
+// Enqueue is a paid mutator transaction binding the contract method 0x6fee07e0.
+//
+// Solidity: function enqueue(address _target, uint256 _gasLimit, bytes _data) returns()
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) Enqueue(_target common.Address, _gasLimit *big.Int, _data []byte) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.Contract.Enqueue(&_CanonicalTransactionChain.TransactOpts, _target, _gasLimit, _data)
+}
+
+// Enqueue is a paid mutator transaction binding the contract method 0x6fee07e0.
+//
+// Solidity: function enqueue(address _target, uint256 _gasLimit, bytes _data) returns()
+func (_CanonicalTransactionChain *CanonicalTransactionChainTransactorSession) Enqueue(_target common.Address, _gasLimit *big.Int, _data []byte) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.Contract.Enqueue(&_CanonicalTransactionChain.TransactOpts, _target, _gasLimit, _data)
+}
+
+// SetGasParams is a paid mutator transaction binding the contract method 0xedcc4a45.
+//
+// Solidity: function setGasParams(uint256 _l2GasDiscountDivisor, uint256 _enqueueGasCost) returns()
+func (_CanonicalTransactionChain *CanonicalTransactionChainTransactor) SetGasParams(opts *bind.TransactOpts, _l2GasDiscountDivisor *big.Int, _enqueueGasCost *big.Int) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.contract.Transact(opts, "setGasParams", _l2GasDiscountDivisor, _enqueueGasCost)
+}
+
+// SetGasParams is a paid mutator transaction binding the contract method 0xedcc4a45.
+//
+// Solidity: function setGasParams(uint256 _l2GasDiscountDivisor, uint256 _enqueueGasCost) returns()
+func (_CanonicalTransactionChain *CanonicalTransactionChainSession) SetGasParams(_l2GasDiscountDivisor *big.Int, _enqueueGasCost *big.Int) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.Contract.SetGasParams(&_CanonicalTransactionChain.TransactOpts, _l2GasDiscountDivisor, _enqueueGasCost)
+}
+
+// SetGasParams is a paid mutator transaction binding the contract method 0xedcc4a45.
+//
+// Solidity: function setGasParams(uint256 _l2GasDiscountDivisor, uint256 _enqueueGasCost) returns()
+func (_CanonicalTransactionChain *CanonicalTransactionChainTransactorSession) SetGasParams(_l2GasDiscountDivisor *big.Int, _enqueueGasCost *big.Int) (*types.Transaction, error) {
+	return _CanonicalTransactionChain.Contract.SetGasParams(&_CanonicalTransactionChain.TransactOpts, _l2GasDiscountDivisor, _enqueueGasCost)
+}
+
+// CanonicalTransactionChainL2GasParamsUpdatedIterator is returned from FilterL2GasParamsUpdated and is used to iterate over the raw logs and unpacked data for L2GasParamsUpdated events raised by the CanonicalTransactionChain contract.
+type CanonicalTransactionChainL2GasParamsUpdatedIterator struct {
+	Event *CanonicalTransactionChainL2GasParamsUpdated // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *CanonicalTransactionChainL2GasParamsUpdatedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(CanonicalTransactionChainL2GasParamsUpdated)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(CanonicalTransactionChainL2GasParamsUpdated)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *CanonicalTransactionChainL2GasParamsUpdatedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *CanonicalTransactionChainL2GasParamsUpdatedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// CanonicalTransactionChainL2GasParamsUpdated represents a L2GasParamsUpdated event raised by the CanonicalTransactionChain contract.
+type CanonicalTransactionChainL2GasParamsUpdated struct {
+	L2GasDiscountDivisor *big.Int
+	EnqueueGasCost       *big.Int
+	EnqueueL2GasPrepaid  *big.Int
+	Raw                  types.Log // Blockchain specific contextual infos
+}
+
+// FilterL2GasParamsUpdated is a free log retrieval operation binding the contract event 0xc6ed75e96b8b18b71edc1a6e82a9d677f8268c774a262c624eeb2cf0a8b3e07e.
+//
+// Solidity: event L2GasParamsUpdated(uint256 l2GasDiscountDivisor, uint256 enqueueGasCost, uint256 enqueueL2GasPrepaid)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) FilterL2GasParamsUpdated(opts *bind.FilterOpts) (*CanonicalTransactionChainL2GasParamsUpdatedIterator, error) {
+
+	logs, sub, err := _CanonicalTransactionChain.contract.FilterLogs(opts, "L2GasParamsUpdated")
+	if err != nil {
+		return nil, err
+	}
+	return &CanonicalTransactionChainL2GasParamsUpdatedIterator{contract: _CanonicalTransactionChain.contract, event: "L2GasParamsUpdated", logs: logs, sub: sub}, nil
+}
+
+// WatchL2GasParamsUpdated is a free log subscription operation binding the contract event 0xc6ed75e96b8b18b71edc1a6e82a9d677f8268c774a262c624eeb2cf0a8b3e07e.
+//
+// Solidity: event L2GasParamsUpdated(uint256 l2GasDiscountDivisor, uint256 enqueueGasCost, uint256 enqueueL2GasPrepaid)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) WatchL2GasParamsUpdated(opts *bind.WatchOpts, sink chan<- *CanonicalTransactionChainL2GasParamsUpdated) (event.Subscription, error) {
+
+	logs, sub, err := _CanonicalTransactionChain.contract.WatchLogs(opts, "L2GasParamsUpdated")
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(CanonicalTransactionChainL2GasParamsUpdated)
+				if err := _CanonicalTransactionChain.contract.UnpackLog(event, "L2GasParamsUpdated", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseL2GasParamsUpdated is a log parse operation binding the contract event 0xc6ed75e96b8b18b71edc1a6e82a9d677f8268c774a262c624eeb2cf0a8b3e07e.
+//
+// Solidity: event L2GasParamsUpdated(uint256 l2GasDiscountDivisor, uint256 enqueueGasCost, uint256 enqueueL2GasPrepaid)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) ParseL2GasParamsUpdated(log types.Log) (*CanonicalTransactionChainL2GasParamsUpdated, error) {
+	event := new(CanonicalTransactionChainL2GasParamsUpdated)
+	if err := _CanonicalTransactionChain.contract.UnpackLog(event, "L2GasParamsUpdated", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// CanonicalTransactionChainQueueBatchAppendedIterator is returned from FilterQueueBatchAppended and is used to iterate over the raw logs and unpacked data for QueueBatchAppended events raised by the CanonicalTransactionChain contract.
+type CanonicalTransactionChainQueueBatchAppendedIterator struct {
+	Event *CanonicalTransactionChainQueueBatchAppended // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *CanonicalTransactionChainQueueBatchAppendedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(CanonicalTransactionChainQueueBatchAppended)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(CanonicalTransactionChainQueueBatchAppended)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *CanonicalTransactionChainQueueBatchAppendedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *CanonicalTransactionChainQueueBatchAppendedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// CanonicalTransactionChainQueueBatchAppended represents a QueueBatchAppended event raised by the CanonicalTransactionChain contract.
+type CanonicalTransactionChainQueueBatchAppended struct {
+	StartingQueueIndex *big.Int
+	NumQueueElements   *big.Int
+	TotalElements      *big.Int
+	Raw                types.Log // Blockchain specific contextual infos
+}
+
+// FilterQueueBatchAppended is a free log retrieval operation binding the contract event 0x64d7f508348c70dea42d5302a393987e4abc20e45954ab3f9d320207751956f0.
+//
+// Solidity: event QueueBatchAppended(uint256 _startingQueueIndex, uint256 _numQueueElements, uint256 _totalElements)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) FilterQueueBatchAppended(opts *bind.FilterOpts) (*CanonicalTransactionChainQueueBatchAppendedIterator, error) {
+
+	logs, sub, err := _CanonicalTransactionChain.contract.FilterLogs(opts, "QueueBatchAppended")
+	if err != nil {
+		return nil, err
+	}
+	return &CanonicalTransactionChainQueueBatchAppendedIterator{contract: _CanonicalTransactionChain.contract, event: "QueueBatchAppended", logs: logs, sub: sub}, nil
+}
+
+// WatchQueueBatchAppended is a free log subscription operation binding the contract event 0x64d7f508348c70dea42d5302a393987e4abc20e45954ab3f9d320207751956f0.
+//
+// Solidity: event QueueBatchAppended(uint256 _startingQueueIndex, uint256 _numQueueElements, uint256 _totalElements)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) WatchQueueBatchAppended(opts *bind.WatchOpts, sink chan<- *CanonicalTransactionChainQueueBatchAppended) (event.Subscription, error) {
+
+	logs, sub, err := _CanonicalTransactionChain.contract.WatchLogs(opts, "QueueBatchAppended")
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(CanonicalTransactionChainQueueBatchAppended)
+				if err := _CanonicalTransactionChain.contract.UnpackLog(event, "QueueBatchAppended", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseQueueBatchAppended is a log parse operation binding the contract event 0x64d7f508348c70dea42d5302a393987e4abc20e45954ab3f9d320207751956f0.
+//
+// Solidity: event QueueBatchAppended(uint256 _startingQueueIndex, uint256 _numQueueElements, uint256 _totalElements)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) ParseQueueBatchAppended(log types.Log) (*CanonicalTransactionChainQueueBatchAppended, error) {
+	event := new(CanonicalTransactionChainQueueBatchAppended)
+	if err := _CanonicalTransactionChain.contract.UnpackLog(event, "QueueBatchAppended", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// CanonicalTransactionChainSequencerBatchAppendedIterator is returned from FilterSequencerBatchAppended and is used to iterate over the raw logs and unpacked data for SequencerBatchAppended events raised by the CanonicalTransactionChain contract.
+type CanonicalTransactionChainSequencerBatchAppendedIterator struct {
+	Event *CanonicalTransactionChainSequencerBatchAppended // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *CanonicalTransactionChainSequencerBatchAppendedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(CanonicalTransactionChainSequencerBatchAppended)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(CanonicalTransactionChainSequencerBatchAppended)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *CanonicalTransactionChainSequencerBatchAppendedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *CanonicalTransactionChainSequencerBatchAppendedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// CanonicalTransactionChainSequencerBatchAppended represents a SequencerBatchAppended event raised by the CanonicalTransactionChain contract.
+type CanonicalTransactionChainSequencerBatchAppended struct {
+	StartingQueueIndex *big.Int
+	NumQueueElements   *big.Int
+	TotalElements      *big.Int
+	Raw                types.Log // Blockchain specific contextual infos
+}
+
+// FilterSequencerBatchAppended is a free log retrieval operation binding the contract event 0x602f1aeac0ca2e7a13e281a9ef0ad7838542712ce16780fa2ecffd351f05f899.
+//
+// Solidity: event SequencerBatchAppended(uint256 _startingQueueIndex, uint256 _numQueueElements, uint256 _totalElements)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) FilterSequencerBatchAppended(opts *bind.FilterOpts) (*CanonicalTransactionChainSequencerBatchAppendedIterator, error) {
+
+	logs, sub, err := _CanonicalTransactionChain.contract.FilterLogs(opts, "SequencerBatchAppended")
+	if err != nil {
+		return nil, err
+	}
+	return &CanonicalTransactionChainSequencerBatchAppendedIterator{contract: _CanonicalTransactionChain.contract, event: "SequencerBatchAppended", logs: logs, sub: sub}, nil
+}
+
+// WatchSequencerBatchAppended is a free log subscription operation binding the contract event 0x602f1aeac0ca2e7a13e281a9ef0ad7838542712ce16780fa2ecffd351f05f899.
+//
+// Solidity: event SequencerBatchAppended(uint256 _startingQueueIndex, uint256 _numQueueElements, uint256 _totalElements)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) WatchSequencerBatchAppended(opts *bind.WatchOpts, sink chan<- *CanonicalTransactionChainSequencerBatchAppended) (event.Subscription, error) {
+
+	logs, sub, err := _CanonicalTransactionChain.contract.WatchLogs(opts, "SequencerBatchAppended")
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(CanonicalTransactionChainSequencerBatchAppended)
+				if err := _CanonicalTransactionChain.contract.UnpackLog(event, "SequencerBatchAppended", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseSequencerBatchAppended is a log parse operation binding the contract event 0x602f1aeac0ca2e7a13e281a9ef0ad7838542712ce16780fa2ecffd351f05f899.
+//
+// Solidity: event SequencerBatchAppended(uint256 _startingQueueIndex, uint256 _numQueueElements, uint256 _totalElements)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) ParseSequencerBatchAppended(log types.Log) (*CanonicalTransactionChainSequencerBatchAppended, error) {
+	event := new(CanonicalTransactionChainSequencerBatchAppended)
+	if err := _CanonicalTransactionChain.contract.UnpackLog(event, "SequencerBatchAppended", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// CanonicalTransactionChainTransactionBatchAppendedIterator is returned from FilterTransactionBatchAppended and is used to iterate over the raw logs and unpacked data for TransactionBatchAppended events raised by the CanonicalTransactionChain contract.
+type CanonicalTransactionChainTransactionBatchAppendedIterator struct {
+	Event *CanonicalTransactionChainTransactionBatchAppended // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *CanonicalTransactionChainTransactionBatchAppendedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(CanonicalTransactionChainTransactionBatchAppended)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(CanonicalTransactionChainTransactionBatchAppended)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *CanonicalTransactionChainTransactionBatchAppendedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *CanonicalTransactionChainTransactionBatchAppendedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// CanonicalTransactionChainTransactionBatchAppended represents a TransactionBatchAppended event raised by the CanonicalTransactionChain contract.
+type CanonicalTransactionChainTransactionBatchAppended struct {
+	BatchIndex        *big.Int
+	BatchRoot         [32]byte
+	BatchSize         *big.Int
+	PrevTotalElements *big.Int
+	ExtraData         []byte
+	Raw               types.Log // Blockchain specific contextual infos
+}
+
+// FilterTransactionBatchAppended is a free log retrieval operation binding the contract event 0x127186556e7be68c7e31263195225b4de02820707889540969f62c05cf73525e.
+//
+// Solidity: event TransactionBatchAppended(uint256 indexed _batchIndex, bytes32 _batchRoot, uint256 _batchSize, uint256 _prevTotalElements, bytes _extraData)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) FilterTransactionBatchAppended(opts *bind.FilterOpts, _batchIndex []*big.Int) (*CanonicalTransactionChainTransactionBatchAppendedIterator, error) {
+
+	var _batchIndexRule []interface{}
+	for _, _batchIndexItem := range _batchIndex {
+		_batchIndexRule = append(_batchIndexRule, _batchIndexItem)
+	}
+
+	logs, sub, err := _CanonicalTransactionChain.contract.FilterLogs(opts, "TransactionBatchAppended", _batchIndexRule)
+	if err != nil {
+		return nil, err
+	}
+	return &CanonicalTransactionChainTransactionBatchAppendedIterator{contract: _CanonicalTransactionChain.contract, event: "TransactionBatchAppended", logs: logs, sub: sub}, nil
+}
+
+// WatchTransactionBatchAppended is a free log subscription operation binding the contract event 0x127186556e7be68c7e31263195225b4de02820707889540969f62c05cf73525e.
+//
+// Solidity: event TransactionBatchAppended(uint256 indexed _batchIndex, bytes32 _batchRoot, uint256 _batchSize, uint256 _prevTotalElements, bytes _extraData)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) WatchTransactionBatchAppended(opts *bind.WatchOpts, sink chan<- *CanonicalTransactionChainTransactionBatchAppended, _batchIndex []*big.Int) (event.Subscription, error) {
+
+	var _batchIndexRule []interface{}
+	for _, _batchIndexItem := range _batchIndex {
+		_batchIndexRule = append(_batchIndexRule, _batchIndexItem)
+	}
+
+	logs, sub, err := _CanonicalTransactionChain.contract.WatchLogs(opts, "TransactionBatchAppended", _batchIndexRule)
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(CanonicalTransactionChainTransactionBatchAppended)
+				if err := _CanonicalTransactionChain.contract.UnpackLog(event, "TransactionBatchAppended", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseTransactionBatchAppended is a log parse operation binding the contract event 0x127186556e7be68c7e31263195225b4de02820707889540969f62c05cf73525e.
+//
+// Solidity: event TransactionBatchAppended(uint256 indexed _batchIndex, bytes32 _batchRoot, uint256 _batchSize, uint256 _prevTotalElements, bytes _extraData)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) ParseTransactionBatchAppended(log types.Log) (*CanonicalTransactionChainTransactionBatchAppended, error) {
+	event := new(CanonicalTransactionChainTransactionBatchAppended)
+	if err := _CanonicalTransactionChain.contract.UnpackLog(event, "TransactionBatchAppended", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}
+
+// CanonicalTransactionChainTransactionEnqueuedIterator is returned from FilterTransactionEnqueued and is used to iterate over the raw logs and unpacked data for TransactionEnqueued events raised by the CanonicalTransactionChain contract.
+type CanonicalTransactionChainTransactionEnqueuedIterator struct {
+	Event *CanonicalTransactionChainTransactionEnqueued // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *CanonicalTransactionChainTransactionEnqueuedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(CanonicalTransactionChainTransactionEnqueued)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(CanonicalTransactionChainTransactionEnqueued)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *CanonicalTransactionChainTransactionEnqueuedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *CanonicalTransactionChainTransactionEnqueuedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// CanonicalTransactionChainTransactionEnqueued represents a TransactionEnqueued event raised by the CanonicalTransactionChain contract.
+type CanonicalTransactionChainTransactionEnqueued struct {
+	L1TxOrigin common.Address
+	Target     common.Address
+	GasLimit   *big.Int
+	Data       []byte
+	QueueIndex *big.Int
+	Timestamp  *big.Int
+	Raw        types.Log // Blockchain specific contextual infos
+}
+
+// FilterTransactionEnqueued is a free log retrieval operation binding the contract event 0x4b388aecf9fa6cc92253704e5975a6129a4f735bdbd99567df4ed0094ee4ceb5.
+//
+// Solidity: event TransactionEnqueued(address indexed _l1TxOrigin, address indexed _target, uint256 _gasLimit, bytes _data, uint256 indexed _queueIndex, uint256 _timestamp)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) FilterTransactionEnqueued(opts *bind.FilterOpts, _l1TxOrigin []common.Address, _target []common.Address, _queueIndex []*big.Int) (*CanonicalTransactionChainTransactionEnqueuedIterator, error) {
+
+	var _l1TxOriginRule []interface{}
+	for _, _l1TxOriginItem := range _l1TxOrigin {
+		_l1TxOriginRule = append(_l1TxOriginRule, _l1TxOriginItem)
+	}
+	var _targetRule []interface{}
+	for _, _targetItem := range _target {
+		_targetRule = append(_targetRule, _targetItem)
+	}
+
+	var _queueIndexRule []interface{}
+	for _, _queueIndexItem := range _queueIndex {
+		_queueIndexRule = append(_queueIndexRule, _queueIndexItem)
+	}
+
+	logs, sub, err := _CanonicalTransactionChain.contract.FilterLogs(opts, "TransactionEnqueued", _l1TxOriginRule, _targetRule, _queueIndexRule)
+	if err != nil {
+		return nil, err
+	}
+	return &CanonicalTransactionChainTransactionEnqueuedIterator{contract: _CanonicalTransactionChain.contract, event: "TransactionEnqueued", logs: logs, sub: sub}, nil
+}
+
+// WatchTransactionEnqueued is a free log subscription operation binding the contract event 0x4b388aecf9fa6cc92253704e5975a6129a4f735bdbd99567df4ed0094ee4ceb5.
+//
+// Solidity: event TransactionEnqueued(address indexed _l1TxOrigin, address indexed _target, uint256 _gasLimit, bytes _data, uint256 indexed _queueIndex, uint256 _timestamp)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) WatchTransactionEnqueued(opts *bind.WatchOpts, sink chan<- *CanonicalTransactionChainTransactionEnqueued, _l1TxOrigin []common.Address, _target []common.Address, _queueIndex []*big.Int) (event.Subscription, error) {
+
+	var _l1TxOriginRule []interface{}
+	for _, _l1TxOriginItem := range _l1TxOrigin {
+		_l1TxOriginRule = append(_l1TxOriginRule, _l1TxOriginItem)
+	}
+	var _targetRule []interface{}
+	for _, _targetItem := range _target {
+		_targetRule = append(_targetRule, _targetItem)
+	}
+
+	var _queueIndexRule []interface{}
+	for _, _queueIndexItem := range _queueIndex {
+		_queueIndexRule = append(_queueIndexRule, _queueIndexItem)
+	}
+
+	logs, sub, err := _CanonicalTransactionChain.contract.WatchLogs(opts, "TransactionEnqueued", _l1TxOriginRule, _targetRule, _queueIndexRule)
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(CanonicalTransactionChainTransactionEnqueued)
+				if err := _CanonicalTransactionChain.contract.UnpackLog(event, "TransactionEnqueued", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseTransactionEnqueued is a log parse operation binding the contract event 0x4b388aecf9fa6cc92253704e5975a6129a4f735bdbd99567df4ed0094ee4ceb5.
+//
+// Solidity: event TransactionEnqueued(address indexed _l1TxOrigin, address indexed _target, uint256 _gasLimit, bytes _data, uint256 indexed _queueIndex, uint256 _timestamp)
+func (_CanonicalTransactionChain *CanonicalTransactionChainFilterer) ParseTransactionEnqueued(log types.Log) (*CanonicalTransactionChainTransactionEnqueued, error) {
+	event := new(CanonicalTransactionChainTransactionEnqueued)
+	if err := _CanonicalTransactionChain.contract.UnpackLog(event, "TransactionEnqueued", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}

go/l2geth-exporter/collector.go

+package main
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+//Define the metrics we wish to expose
+var (
+	ctcTotalElements = prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Name: "l2geth_ctc_total_elements",
+			Help: "CTC GetTotalElements value."},
+		[]string{"state"},
+	)
+	ctcTotalElementsCallSuccess = prometheus.NewGauge(
+		prometheus.GaugeOpts{
+			Name: "l2geth_ctc_total_elements_call_success",
+			Help: "CTC GetTotalElements call success."},
+	)
+)
+
+func init() {
+	//Register metrics with prometheus
+	prometheus.MustRegister(ctcTotalElements)
+	prometheus.MustRegister(ctcTotalElementsCallSuccess)
+}

go/l2geth-exporter/go.mod

+module github.com/ethereum-optimism/optimism/go/l2geth-exporter
+
+go 1.16
+
+require (
+	github.com/ethereum/go-ethereum v1.10.8
+	github.com/prometheus/client_golang v1.11.0
+)

go/l2geth-exporter/go.sum

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go/l2geth-exporter/l1contracts/main.go

+package l1contracts
+
+import (
+	"context"
+	"math/big"
+
+	"github.com/ethereum-optimism/optimism/go/l2geth-exporter/bindings"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/ethclient"
+)
+
+// CTC interacts with the OVM CTC contract
+type CTC struct {
+	Address common.Address
+	Client  *ethclient.Client
+}
+
+func (ctc *CTC) GetTotalElements(ctx context.Context) (*big.Int, error) {
+
+	contract, err := bindings.NewCanonicalTransactionChainCaller(ctc.Address, ctc.Client)
+	if err != nil {
+		return nil, err
+	}
+
+	totalElements, err := contract.GetTotalElements(&bind.CallOpts{
+		Context: ctx,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return totalElements, nil
+
+}

go/l2geth-exporter/main.go

+package main
+
+import (
+	"context"
+	"math/big"
+	"net/http"
+	"os"
+	"time"
+
+	"github.com/ethereum-optimism/optimism/go/l2geth-exporter/l1contracts"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/ethclient"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+)
+
+var (
+	l1TimeoutSeconds = 5
+)
+
+func main() {
+	listenAddress := os.Getenv("LISTEN_ADDRESS")
+	if listenAddress == "" {
+		listenAddress = ":9100"
+	}
+
+	log.Root().SetHandler(log.CallerFileHandler(log.StdoutHandler))
+
+	l1Url := os.Getenv("L1_URL")
+	if l1Url == "" {
+		log.Error("L1_URL environmental variable is required")
+		os.Exit(1)
+	}
+	ctcAddress := os.Getenv("CTC_ADDRESS")
+	if ctcAddress == "" {
+		log.Error("CTC_ADDRESS environmental variable is required")
+		os.Exit(1)
+	}
+	client, err := ethclient.Dial(l1Url)
+	if err != nil {
+		log.Error("Problem connecting to L1: %s", err)
+	}
+
+	http.Handle("/metrics", promhttp.Handler())
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte(`<html>
+		<head><title>L2geth Exporter</title></head>
+		<body>
+		<h1>L2geth Exporter</h1>
+		<p><a href="/metrics">Metrics</a></p>
+		</body>
+		</html>`))
+	})
+	go getCTCTotalElements(ctcAddress, client)
+
+	log.Info("Program starting", "listenAddress", listenAddress, "GETH_URL", l1Url, "CTC_ADDRESS", ctcAddress)
+	if err := http.ListenAndServe(listenAddress, nil); err != nil {
+		log.Error("Can't start http server", "error", err)
+	}
+
+}
+
+func getCTCTotalElements(address string, client *ethclient.Client) {
+	ctc := l1contracts.CTC{
+		Address: common.HexToAddress(address),
+		Client:  client,
+	}
+
+	ticker := time.NewTicker(30 * time.Second)
+	defer ticker.Stop()
+	for {
+		ctx, cancel := context.WithTimeout(context.Background(), time.Second*time.Duration(l1TimeoutSeconds))
+		totalElements, err := ctc.GetTotalElements(ctx)
+		if err != nil {
+			ctcTotalElementsCallSuccess.Set(0)
+			log.Error("Error calling GetTotalElements", "error", err)
+			cancel()
+			continue
+		}
+		ctcTotalElementsCallSuccess.Set(1)
+		totalElementsFloat, _ := new(big.Float).SetInt(totalElements).Float64()
+		ctcTotalElements.WithLabelValues(
+			"latest").Set(totalElementsFloat)
+		log.Info("ctc updated", "ctcTotalElements", totalElementsFloat)
+		cancel()
+		<-ticker.C
+
+	}
+}

go/l2geth-exporter/package.json

+{
+  "name": "@eth-optimism/l2geth-exporter",
+  "version": "0.0.1",
+  "private": true,
+  "devDependencies": {}
+}

go/op-exporter/CHANGELOG.md

 # @eth-optimism/op-exporter
 
+## 0.5.2
+
+### Patch Changes
+
+- 5877f230: force rebuild
+
 ## 0.5.1
+
 ### Patch Changes
 
 - 3f563420: Cleanup op-exporter CI, renamed package

go/op-exporter/package.json

 {
   "name": "@eth-optimism/op-exporter",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "private": true,
   "devDependencies": {}
 }

go/proxyd/CHANGELOG.md

 # @eth-optimism/proxyd
 
+## 3.4.1
+
+### Patch Changes
+
+- 415164e1: Force proxyd build
+
+## 3.4.0
+
+### Minor Changes
+
+- 4b56ed84: Various proxyd fixes
+
 ## 3.3.0
 
 ### Minor Changes

go/proxyd/backend.go

@@ -389,7 +389,7 @@ func (b *BackendGroup) Forward(ctx context.Context, rpcReq *RPCReq) (*RPCRes, er
 		if err != nil {
 			log.Error(
 				"error forwarding request to backend",
-				"name", b.Name,
+				"name", back.Name,
 				"req_id", GetReqID(ctx),
 				"auth", GetAuthCtx(ctx),
 				"err", err,
@@ -442,7 +442,7 @@ func (b *BackendGroup) ProxyWS(ctx context.Context, clientConn *websocket.Conn,
 
 func calcBackoff(i int) time.Duration {
 	jitter := float64(rand.Int63n(250))
-	ms := math.Min(math.Pow(2, float64(i))*1000+jitter, 10000)
+	ms := math.Min(math.Pow(2, float64(i))*1000+jitter, 3000)
 	return time.Duration(ms) * time.Millisecond
 }
 

go/proxyd/cmd/proxyd/main.go

 package main
 
 import (
+	"os"
+
 	"github.com/BurntSushi/toml"
 	"github.com/ethereum-optimism/optimism/go/proxyd"
 	"github.com/ethereum/go-ethereum/log"
-	"os"
 )
 
 var (
@@ -19,7 +20,7 @@ func main() {
 	log.Root().SetHandler(
 		log.LvlFilterHandler(
 			log.LvlInfo,
-			log.StreamHandler(os.Stdout, log.TerminalFormat(true)),
+			log.StreamHandler(os.Stdout, log.JSONFormat()),
 		),
 	)
 

go/proxyd/config.go

@@ -27,7 +27,7 @@ type MetricsConfig struct {
 type BackendOptions struct {
 	ResponseTimeoutSeconds int   `toml:"response_timeout_seconds"`
 	MaxResponseSizeBytes   int64 `toml:"max_response_size_bytes"`
-	MaxRetries             int   `toml:"backend_retries"`
+	MaxRetries             int   `toml:"max_retries"`
 	OutOfServiceSeconds    int   `toml:"out_of_service_seconds"`
 }
 

go/proxyd/metrics.go

@@ -106,12 +106,6 @@ var (
 		"request_source",
 	})
 
-	httpRequestsTotal = promauto.NewCounter(prometheus.CounterOpts{
-		Namespace: MetricsNamespace,
-		Name:      "http_requests_total",
-		Help:      "Count of total HTTP requests.",
-	})
-
 	httpResponseCodesTotal = promauto.NewCounterVec(prometheus.CounterOpts{
 		Namespace: MetricsNamespace,
 		Name:      "http_response_codes_total",

go/proxyd/package.json

 {
   "name": "@eth-optimism/proxyd",
-  "version": "3.3.0",
+  "version": "3.4.1",
   "private": true,
   "dependencies": {}
 }

go/proxyd/server.go

@@ -117,7 +117,7 @@ func (s *Server) HandleRPC(w http.ResponseWriter, r *http.Request) {
 	if err != nil {
 		log.Info("rejected request with bad rpc request", "source", "rpc", "err", err)
 		RecordRPCError(ctx, BackendProxyd, MethodUnknown, err)
-		writeRPCError(w, nil, err)
+		writeRPCError(ctx, w, nil, err)
 		return
 	}
 
@@ -132,7 +132,7 @@ func (s *Server) HandleRPC(w http.ResponseWriter, r *http.Request) {
 			"method", req.Method,
 		)
 		RecordRPCError(ctx, BackendProxyd, MethodUnknown, ErrMethodNotWhitelisted)
-		writeRPCError(w, req.ID, ErrMethodNotWhitelisted)
+		writeRPCError(ctx, w, req.ID, ErrMethodNotWhitelisted)
 		return
 	}
 
@@ -144,21 +144,11 @@ func (s *Server) HandleRPC(w http.ResponseWriter, r *http.Request) {
 			"req_id", GetReqID(ctx),
 			"err", err,
 		)
-		writeRPCError(w, req.ID, err)
+		writeRPCError(ctx, w, req.ID, err)
 		return
 	}
 
-	enc := json.NewEncoder(w)
-	if err := enc.Encode(backendRes); err != nil {
-		log.Error(
-			"error encoding response",
-			"req_id", GetReqID(ctx),
-			"err", err,
-		)
-		RecordRPCError(ctx, BackendProxyd, req.Method, err)
-		writeRPCError(w, req.ID, err)
-		return
-	}
+	writeRPCRes(ctx, w, backendRes)
 }
 
 func (s *Server) HandleWS(w http.ResponseWriter, r *http.Request) {
@@ -232,20 +222,17 @@ func (s *Server) populateContext(w http.ResponseWriter, r *http.Request) context
 	)
 }
 
-func writeRPCError(w http.ResponseWriter, id json.RawMessage, err error) {
+func writeRPCError(ctx context.Context, w http.ResponseWriter, id json.RawMessage, err error) {
 	var res *RPCRes
 	if r, ok := err.(*RPCErr); ok {
 		res = NewRPCErrorRes(id, r)
 	} else {
-		res = NewRPCErrorRes(id, &RPCErr{
-			Code:    JSONRPCErrorInternal,
-			Message: "internal error",
-		})
+		res = NewRPCErrorRes(id, ErrInternal)
 	}
-	writeRPCRes(w, res)
+	writeRPCRes(ctx, w, res)
 }
 
-func writeRPCRes(w http.ResponseWriter, res *RPCRes) {
+func writeRPCRes(ctx context.Context, w http.ResponseWriter, res *RPCRes) {
 	statusCode := 200
 	if res.IsError() && res.Error.HTTPErrorCode != 0 {
 		statusCode = res.Error.HTTPErrorCode
@@ -254,13 +241,14 @@ func writeRPCRes(w http.ResponseWriter, res *RPCRes) {
 	enc := json.NewEncoder(w)
 	if err := enc.Encode(res); err != nil {
 		log.Error("error writing rpc response", "err", err)
+		RecordRPCError(ctx, BackendProxyd, MethodUnknown, err)
+		return
 	}
 	httpResponseCodesTotal.WithLabelValues(strconv.Itoa(statusCode)).Inc()
 }
 
 func instrumentedHdlr(h http.Handler) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		httpRequestsTotal.Inc()
 		respTimer := prometheus.NewTimer(httpRequestDurationSumm)
 		h.ServeHTTP(w, r)
 		respTimer.ObserveDuration()

integration-tests/package.json

@@ -28,9 +28,9 @@
     "url": "https://github.com/ethereum-optimism/optimism.git"
   },
   "devDependencies": {
-    "@eth-optimism/contracts": "0.5.6",
+    "@eth-optimism/contracts": "0.5.7",
     "@eth-optimism/core-utils": "0.7.3",
-    "@eth-optimism/message-relayer": "0.2.9",
+    "@eth-optimism/message-relayer": "0.2.10",
     "@ethersproject/abstract-provider": "^5.5.1",
     "@ethersproject/providers": "^5.4.5",
     "@ethersproject/transactions": "^5.4.0",

l2geth/CHANGELOG.md

 # Changelog
 
+## 0.5.5
+
+### Patch Changes
+
+- 2924845d: expose ErrNonceTooHigh from miner
+
+## 0.5.4
+
+### Patch Changes
+
+- d205c1d6: surface sequencer low-level sequencer execution errors
+
 ## 0.5.3
 
 ### Patch Changes

l2geth/cmd/devp2p/dns_cloudflare.go

@@ -17,6 +17,7 @@
 package main
 
 import (
+	"context"
 	"fmt"
 	"strings"
 
@@ -79,7 +80,7 @@ func (c *cloudflareClient) checkZone(name string) error {
 		c.zoneID = id
 	}
 	log.Info(fmt.Sprintf("Checking Permissions on zone %s", c.zoneID))
-	zone, err := c.ZoneDetails(c.zoneID)
+	zone, err := c.ZoneDetails(context.Background(), c.zoneID)
 	if err != nil {
 		return err
 	}
@@ -112,7 +113,7 @@ func (c *cloudflareClient) uploadRecords(name string, records map[string]string)
 	records = lrecords
 
 	log.Info(fmt.Sprintf("Retrieving existing TXT records on %s", name))
-	entries, err := c.DNSRecords(c.zoneID, cloudflare.DNSRecord{Type: "TXT"})
+	entries, err := c.DNSRecords(context.Background(), c.zoneID, cloudflare.DNSRecord{Type: "TXT"})
 	if err != nil {
 		return err
 	}
@@ -134,12 +135,12 @@ func (c *cloudflareClient) uploadRecords(name string, records map[string]string)
 			if path != name {
 				ttl = treeNodeTTL // Max TTL permitted by Cloudflare
 			}
-			_, err = c.CreateDNSRecord(c.zoneID, cloudflare.DNSRecord{Type: "TXT", Name: path, Content: val, TTL: ttl})
+			_, err = c.CreateDNSRecord(context.Background(), c.zoneID, cloudflare.DNSRecord{Type: "TXT", Name: path, Content: val, TTL: ttl})
 		} else if old.Content != val {
 			// Entry already exists, only change its content.
 			log.Info(fmt.Sprintf("Updating %s from %q to %q", path, old.Content, val))
 			old.Content = val
-			err = c.UpdateDNSRecord(c.zoneID, old.ID, old)
+			err = c.UpdateDNSRecord(context.Background(), c.zoneID, old.ID, old)
 		} else {
 			log.Info(fmt.Sprintf("Skipping %s = %q", path, val))
 		}
@@ -155,7 +156,7 @@ func (c *cloudflareClient) uploadRecords(name string, records map[string]string)
 		}
 		// Stale entry, nuke it.
 		log.Info(fmt.Sprintf("Deleting %s = %q", path, entry.Content))
-		if err := c.DeleteDNSRecord(c.zoneID, entry.ID); err != nil {
+		if err := c.DeleteDNSRecord(context.Background(), c.zoneID, entry.ID); err != nil {
 			return fmt.Errorf("failed to delete %s: %v", path, err)
 		}
 	}

l2geth/core/types/transaction_meta.go

@@ -7,6 +7,7 @@ package types
 import (
 	"bytes"
 	"encoding/binary"
+	"fmt"
 	"math/big"
 
 	"github.com/ethereum-optimism/optimism/l2geth/common"
@@ -31,6 +32,19 @@ func (q QueueOrigin) String() string {
 	}
 }
 
+func (q *QueueOrigin) UnmarshalJSON(b []byte) error {
+	switch string(b) {
+	case "\"sequencer\"":
+		*q = QueueOriginSequencer
+		return nil
+	case "\"l1\"":
+		*q = QueueOriginL1ToL2
+		return nil
+	default:
+		return fmt.Errorf("Unknown QueueOrigin: %q", b)
+	}
+}
+
 //go:generate gencodec -type TransactionMeta -out gen_tx_meta_json.go
 
 type TransactionMeta struct {

l2geth/crypto/secp256k1/curve.go

-// Copyright 2010 The Go Authors. All rights reserved.
-// Copyright 2011 ThePiachu. All rights reserved.
-// Copyright 2015 Jeffrey Wilcke, Felix Lange, Gustav Simonsson. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-//   notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-//   copyright notice, this list of conditions and the following disclaimer
-//   in the documentation and/or other materials provided with the
-//   distribution.
-// * Neither the name of Google Inc. nor the names of its
-//   contributors may be used to endorse or promote products derived from
-//   this software without specific prior written permission.
-// * The name of ThePiachu may not be used to endorse or promote products
-//   derived from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
 package secp256k1
 
-import (
-	"crypto/elliptic"
-	"math/big"
-	"unsafe"
-)
-
-/*
-#include "libsecp256k1/include/secp256k1.h"
-extern int secp256k1_ext_scalar_mul(const secp256k1_context* ctx, const unsigned char *point, const unsigned char *scalar);
-*/
-import "C"
-
-const (
-	// number of bits in a big.Word
-	wordBits = 32 << (uint64(^big.Word(0)) >> 63)
-	// number of bytes in a big.Word
-	wordBytes = wordBits / 8
-)
-
-// readBits encodes the absolute value of bigint as big-endian bytes. Callers
-// must ensure that buf has enough space. If buf is too short the result will
-// be incomplete.
-func readBits(bigint *big.Int, buf []byte) {
-	i := len(buf)
-	for _, d := range bigint.Bits() {
-		for j := 0; j < wordBytes && i > 0; j++ {
-			i--
-			buf[i] = byte(d)
-			d >>= 8
-		}
-	}
-}
-
-// This code is from https://github.com/ThePiachu/GoBit and implements
-// several Koblitz elliptic curves over prime fields.
-//
-// The curve methods, internally, on Jacobian coordinates. For a given
-// (x, y) position on the curve, the Jacobian coordinates are (x1, y1,
-// z1) where x = x1/z1² and y = y1/z1³. The greatest speedups come
-// when the whole calculation can be performed within the transform
-// (as in ScalarMult and ScalarBaseMult). But even for Add and Double,
-// it's faster to apply and reverse the transform than to operate in
-// affine coordinates.
-
-// A BitCurve represents a Koblitz Curve with a=0.
-// See http://www.hyperelliptic.org/EFD/g1p/auto-shortw.html
-type BitCurve struct {
-	P       *big.Int // the order of the underlying field
-	N       *big.Int // the order of the base point
-	B       *big.Int // the constant of the BitCurve equation
-	Gx, Gy  *big.Int // (x,y) of the base point
-	BitSize int      // the size of the underlying field
-}
-
-func (BitCurve *BitCurve) Params() *elliptic.CurveParams {
-	return &elliptic.CurveParams{
-		P:       BitCurve.P,
-		N:       BitCurve.N,
-		B:       BitCurve.B,
-		Gx:      BitCurve.Gx,
-		Gy:      BitCurve.Gy,
-		BitSize: BitCurve.BitSize,
-	}
-}
-
-// IsOnCurve returns true if the given (x,y) lies on the BitCurve.
-func (BitCurve *BitCurve) IsOnCurve(x, y *big.Int) bool {
-	// y² = x³ + b
-	y2 := new(big.Int).Mul(y, y) //y²
-	y2.Mod(y2, BitCurve.P)       //y²%P
-
-	x3 := new(big.Int).Mul(x, x) //x²
-	x3.Mul(x3, x)                //x³
-
-	x3.Add(x3, BitCurve.B) //x³+B
-	x3.Mod(x3, BitCurve.P) //(x³+B)%P
-
-	return x3.Cmp(y2) == 0
-}
-
-//TODO: double check if the function is okay
-// affineFromJacobian reverses the Jacobian transform. See the comment at the
-// top of the file.
-func (BitCurve *BitCurve) affineFromJacobian(x, y, z *big.Int) (xOut, yOut *big.Int) {
-	zinv := new(big.Int).ModInverse(z, BitCurve.P)
-	zinvsq := new(big.Int).Mul(zinv, zinv)
-
-	xOut = new(big.Int).Mul(x, zinvsq)
-	xOut.Mod(xOut, BitCurve.P)
-	zinvsq.Mul(zinvsq, zinv)
-	yOut = new(big.Int).Mul(y, zinvsq)
-	yOut.Mod(yOut, BitCurve.P)
-	return
-}
-
-// Add returns the sum of (x1,y1) and (x2,y2)
-func (BitCurve *BitCurve) Add(x1, y1, x2, y2 *big.Int) (*big.Int, *big.Int) {
-	z := new(big.Int).SetInt64(1)
-	return BitCurve.affineFromJacobian(BitCurve.addJacobian(x1, y1, z, x2, y2, z))
-}
-
-// addJacobian takes two points in Jacobian coordinates, (x1, y1, z1) and
-// (x2, y2, z2) and returns their sum, also in Jacobian form.
-func (BitCurve *BitCurve) addJacobian(x1, y1, z1, x2, y2, z2 *big.Int) (*big.Int, *big.Int, *big.Int) {
-	// See http://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#addition-add-2007-bl
-	z1z1 := new(big.Int).Mul(z1, z1)
-	z1z1.Mod(z1z1, BitCurve.P)
-	z2z2 := new(big.Int).Mul(z2, z2)
-	z2z2.Mod(z2z2, BitCurve.P)
-
-	u1 := new(big.Int).Mul(x1, z2z2)
-	u1.Mod(u1, BitCurve.P)
-	u2 := new(big.Int).Mul(x2, z1z1)
-	u2.Mod(u2, BitCurve.P)
-	h := new(big.Int).Sub(u2, u1)
-	if h.Sign() == -1 {
-		h.Add(h, BitCurve.P)
-	}
-	i := new(big.Int).Lsh(h, 1)
-	i.Mul(i, i)
-	j := new(big.Int).Mul(h, i)
-
-	s1 := new(big.Int).Mul(y1, z2)
-	s1.Mul(s1, z2z2)
-	s1.Mod(s1, BitCurve.P)
-	s2 := new(big.Int).Mul(y2, z1)
-	s2.Mul(s2, z1z1)
-	s2.Mod(s2, BitCurve.P)
-	r := new(big.Int).Sub(s2, s1)
-	if r.Sign() == -1 {
-		r.Add(r, BitCurve.P)
-	}
-	r.Lsh(r, 1)
-	v := new(big.Int).Mul(u1, i)
-
-	x3 := new(big.Int).Set(r)
-	x3.Mul(x3, x3)
-	x3.Sub(x3, j)
-	x3.Sub(x3, v)
-	x3.Sub(x3, v)
-	x3.Mod(x3, BitCurve.P)
-
-	y3 := new(big.Int).Set(r)
-	v.Sub(v, x3)
-	y3.Mul(y3, v)
-	s1.Mul(s1, j)
-	s1.Lsh(s1, 1)
-	y3.Sub(y3, s1)
-	y3.Mod(y3, BitCurve.P)
-
-	z3 := new(big.Int).Add(z1, z2)
-	z3.Mul(z3, z3)
-	z3.Sub(z3, z1z1)
-	if z3.Sign() == -1 {
-		z3.Add(z3, BitCurve.P)
-	}
-	z3.Sub(z3, z2z2)
-	if z3.Sign() == -1 {
-		z3.Add(z3, BitCurve.P)
-	}
-	z3.Mul(z3, h)
-	z3.Mod(z3, BitCurve.P)
-
-	return x3, y3, z3
-}
-
-// Double returns 2*(x,y)
-func (BitCurve *BitCurve) Double(x1, y1 *big.Int) (*big.Int, *big.Int) {
-	z1 := new(big.Int).SetInt64(1)
-	return BitCurve.affineFromJacobian(BitCurve.doubleJacobian(x1, y1, z1))
-}
-
-// doubleJacobian takes a point in Jacobian coordinates, (x, y, z), and
-// returns its double, also in Jacobian form.
-func (BitCurve *BitCurve) doubleJacobian(x, y, z *big.Int) (*big.Int, *big.Int, *big.Int) {
-	// See http://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#doubling-dbl-2009-l
-
-	a := new(big.Int).Mul(x, x) //X1²
-	b := new(big.Int).Mul(y, y) //Y1²
-	c := new(big.Int).Mul(b, b) //B²
-
-	d := new(big.Int).Add(x, b) //X1+B
-	d.Mul(d, d)                 //(X1+B)²
-	d.Sub(d, a)                 //(X1+B)²-A
-	d.Sub(d, c)                 //(X1+B)²-A-C
-	d.Mul(d, big.NewInt(2))     //2*((X1+B)²-A-C)
-
-	e := new(big.Int).Mul(big.NewInt(3), a) //3*A
-	f := new(big.Int).Mul(e, e)             //E²
-
-	x3 := new(big.Int).Mul(big.NewInt(2), d) //2*D
-	x3.Sub(f, x3)                            //F-2*D
-	x3.Mod(x3, BitCurve.P)
-
-	y3 := new(big.Int).Sub(d, x3)                  //D-X3
-	y3.Mul(e, y3)                                  //E*(D-X3)
-	y3.Sub(y3, new(big.Int).Mul(big.NewInt(8), c)) //E*(D-X3)-8*C
-	y3.Mod(y3, BitCurve.P)
-
-	z3 := new(big.Int).Mul(y, z) //Y1*Z1
-	z3.Mul(big.NewInt(2), z3)    //3*Y1*Z1
-	z3.Mod(z3, BitCurve.P)
-
-	return x3, y3, z3
-}
-
-func (BitCurve *BitCurve) ScalarMult(Bx, By *big.Int, scalar []byte) (*big.Int, *big.Int) {
-	// Ensure scalar is exactly 32 bytes. We pad always, even if
-	// scalar is 32 bytes long, to avoid a timing side channel.
-	if len(scalar) > 32 {
-		panic("can't handle scalars > 256 bits")
-	}
-	// NOTE: potential timing issue
-	padded := make([]byte, 32)
-	copy(padded[32-len(scalar):], scalar)
-	scalar = padded
-
-	// Do the multiplication in C, updating point.
-	point := make([]byte, 64)
-	readBits(Bx, point[:32])
-	readBits(By, point[32:])
-
-	pointPtr := (*C.uchar)(unsafe.Pointer(&point[0]))
-	scalarPtr := (*C.uchar)(unsafe.Pointer(&scalar[0]))
-	res := C.secp256k1_ext_scalar_mul(context, pointPtr, scalarPtr)
-
-	// Unpack the result and clear temporaries.
-	x := new(big.Int).SetBytes(point[:32])
-	y := new(big.Int).SetBytes(point[32:])
-	for i := range point {
-		point[i] = 0
-	}
-	for i := range padded {
-		scalar[i] = 0
-	}
-	if res != 1 {
-		return nil, nil
-	}
-	return x, y
-}
-
-// ScalarBaseMult returns k*G, where G is the base point of the group and k is
-// an integer in big-endian form.
-func (BitCurve *BitCurve) ScalarBaseMult(k []byte) (*big.Int, *big.Int) {
-	return BitCurve.ScalarMult(BitCurve.Gx, BitCurve.Gy, k)
-}
-
-// Marshal converts a point into the form specified in section 4.3.6 of ANSI
-// X9.62.
-func (BitCurve *BitCurve) Marshal(x, y *big.Int) []byte {
-	byteLen := (BitCurve.BitSize + 7) >> 3
-	ret := make([]byte, 1+2*byteLen)
-	ret[0] = 4 // uncompressed point flag
-	readBits(x, ret[1:1+byteLen])
-	readBits(y, ret[1+byteLen:])
-	return ret
-}
-
-// Unmarshal converts a point, serialised by Marshal, into an x, y pair. On
-// error, x = nil.
-func (BitCurve *BitCurve) Unmarshal(data []byte) (x, y *big.Int) {
-	byteLen := (BitCurve.BitSize + 7) >> 3
-	if len(data) != 1+2*byteLen {
-		return
-	}
-	if data[0] != 4 { // uncompressed form
-		return
-	}
-	x = new(big.Int).SetBytes(data[1 : 1+byteLen])
-	y = new(big.Int).SetBytes(data[1+byteLen:])
-	return
-}
-
-var theCurve = new(BitCurve)
-
-func init() {
-	// See SEC 2 section 2.7.1
-	// curve parameters taken from:
-	// http://www.secg.org/sec2-v2.pdf
-	theCurve.P, _ = new(big.Int).SetString("0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F", 0)
-	theCurve.N, _ = new(big.Int).SetString("0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141", 0)
-	theCurve.B, _ = new(big.Int).SetString("0x0000000000000000000000000000000000000000000000000000000000000007", 0)
-	theCurve.Gx, _ = new(big.Int).SetString("0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798", 0)
-	theCurve.Gy, _ = new(big.Int).SetString("0x483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8", 0)
-	theCurve.BitSize = 256
-}
+import "github.com/ethereum/go-ethereum/crypto/secp256k1"
 
 // S256 returns a BitCurve which implements secp256k1.
-func S256() *BitCurve {
-	return theCurve
+func S256() *secp256k1.BitCurve {
+	return secp256k1.S256()
 }

l2geth/crypto/secp256k1/panic_cb.go

-// Copyright 2015 Jeffrey Wilcke, Felix Lange, Gustav Simonsson. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be found in
-// the LICENSE file.
-
-package secp256k1
-
-import "C"
-import "unsafe"
-
-// Callbacks for converting libsecp256k1 internal faults into
-// recoverable Go panics.
-
-//export secp256k1GoPanicIllegal
-func secp256k1GoPanicIllegal(msg *C.char, data unsafe.Pointer) {
-	panic("illegal argument: " + C.GoString(msg))
-}
-
-//export secp256k1GoPanicError
-func secp256k1GoPanicError(msg *C.char, data unsafe.Pointer) {
-	panic("internal error: " + C.GoString(msg))
-}

l2geth/crypto/secp256k1/secp256.go

-// Copyright 2015 Jeffrey Wilcke, Felix Lange, Gustav Simonsson. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be found in
-// the LICENSE file.
-
-// Package secp256k1 wraps the bitcoin secp256k1 C library.
 package secp256k1
 
-/*
-#cgo CFLAGS: -I./libsecp256k1
-#cgo CFLAGS: -I./libsecp256k1/src/
-#define USE_NUM_NONE
-#define USE_FIELD_10X26
-#define USE_FIELD_INV_BUILTIN
-#define USE_SCALAR_8X32
-#define USE_SCALAR_INV_BUILTIN
-#define NDEBUG
-#include "./libsecp256k1/src/secp256k1.c"
-#include "./libsecp256k1/src/modules/recovery/main_impl.h"
-#include "ext.h"
-
-typedef void (*callbackFunc) (const char* msg, void* data);
-extern void secp256k1GoPanicIllegal(const char* msg, void* data);
-extern void secp256k1GoPanicError(const char* msg, void* data);
-*/
-import "C"
-
 import (
-	"errors"
 	"math/big"
-	"unsafe"
-)
-
-var context *C.secp256k1_context
 
-func init() {
-	// around 20 ms on a modern CPU.
-	context = C.secp256k1_context_create_sign_verify()
-	C.secp256k1_context_set_illegal_callback(context, C.callbackFunc(C.secp256k1GoPanicIllegal), nil)
-	C.secp256k1_context_set_error_callback(context, C.callbackFunc(C.secp256k1GoPanicError), nil)
-}
+	"github.com/ethereum/go-ethereum/crypto/secp256k1"
+)
 
 var (
-	ErrInvalidMsgLen       = errors.New("invalid message length, need 32 bytes")
-	ErrInvalidSignatureLen = errors.New("invalid signature length")
-	ErrInvalidRecoveryID   = errors.New("invalid signature recovery id")
-	ErrInvalidKey          = errors.New("invalid private key")
-	ErrInvalidPubkey       = errors.New("invalid public key")
-	ErrSignFailed          = errors.New("signing failed")
-	ErrRecoverFailed       = errors.New("recovery failed")
+	ErrInvalidMsgLen       = secp256k1.ErrInvalidMsgLen
+	ErrInvalidSignatureLen = secp256k1.ErrInvalidSignatureLen
+	ErrInvalidRecoveryID   = secp256k1.ErrInvalidRecoveryID
+	ErrInvalidKey          = secp256k1.ErrInvalidKey
+	ErrInvalidPubkey       = secp256k1.ErrInvalidPubkey
+	ErrSignFailed          = secp256k1.ErrSignFailed
+	ErrRecoverFailed       = secp256k1.ErrRecoverFailed
 )
 
 // Sign creates a recoverable ECDSA signature.
@@ -56,34 +23,7 @@ var (
 // directly by an attacker. It is usually preferable to use a cryptographic
 // hash function on any input before handing it to this function.
 func Sign(msg []byte, seckey []byte) ([]byte, error) {
-	if len(msg) != 32 {
-		return nil, ErrInvalidMsgLen
-	}
-	if len(seckey) != 32 {
-		return nil, ErrInvalidKey
-	}
-	seckeydata := (*C.uchar)(unsafe.Pointer(&seckey[0]))
-	if C.secp256k1_ec_seckey_verify(context, seckeydata) != 1 {
-		return nil, ErrInvalidKey
-	}
-
-	var (
-		msgdata   = (*C.uchar)(unsafe.Pointer(&msg[0]))
-		noncefunc = C.secp256k1_nonce_function_rfc6979
-		sigstruct C.secp256k1_ecdsa_recoverable_signature
-	)
-	if C.secp256k1_ecdsa_sign_recoverable(context, &sigstruct, msgdata, seckeydata, noncefunc, nil) == 0 {
-		return nil, ErrSignFailed
-	}
-
-	var (
-		sig     = make([]byte, 65)
-		sigdata = (*C.uchar)(unsafe.Pointer(&sig[0]))
-		recid   C.int
-	)
-	C.secp256k1_ecdsa_recoverable_signature_serialize_compact(context, sigdata, &recid, &sigstruct)
-	sig[64] = byte(recid) // add back recid to get 65 bytes sig
-	return sig, nil
+	return secp256k1.Sign(msg, seckey)
 }
 
 // RecoverPubkey returns the public key of the signer.
@@ -91,77 +31,22 @@ func Sign(msg []byte, seckey []byte) ([]byte, error) {
 // sig must be a 65-byte compact ECDSA signature containing the
 // recovery id as the last element.
 func RecoverPubkey(msg []byte, sig []byte) ([]byte, error) {
-	if len(msg) != 32 {
-		return nil, ErrInvalidMsgLen
-	}
-	if err := checkSignature(sig); err != nil {
-		return nil, err
-	}
-
-	var (
-		pubkey  = make([]byte, 65)
-		sigdata = (*C.uchar)(unsafe.Pointer(&sig[0]))
-		msgdata = (*C.uchar)(unsafe.Pointer(&msg[0]))
-	)
-	if C.secp256k1_ext_ecdsa_recover(context, (*C.uchar)(unsafe.Pointer(&pubkey[0])), sigdata, msgdata) == 0 {
-		return nil, ErrRecoverFailed
-	}
-	return pubkey, nil
+	return secp256k1.RecoverPubkey(msg, sig)
 }
 
 // VerifySignature checks that the given pubkey created signature over message.
 // The signature should be in [R || S] format.
 func VerifySignature(pubkey, msg, signature []byte) bool {
-	if len(msg) != 32 || len(signature) != 64 || len(pubkey) == 0 {
-		return false
-	}
-	sigdata := (*C.uchar)(unsafe.Pointer(&signature[0]))
-	msgdata := (*C.uchar)(unsafe.Pointer(&msg[0]))
-	keydata := (*C.uchar)(unsafe.Pointer(&pubkey[0]))
-	return C.secp256k1_ext_ecdsa_verify(context, sigdata, msgdata, keydata, C.size_t(len(pubkey))) != 0
+	return secp256k1.VerifySignature(pubkey, msg, signature)
 }
 
 // DecompressPubkey parses a public key in the 33-byte compressed format.
 // It returns non-nil coordinates if the public key is valid.
 func DecompressPubkey(pubkey []byte) (x, y *big.Int) {
-	if len(pubkey) != 33 {
-		return nil, nil
-	}
-	var (
-		pubkeydata = (*C.uchar)(unsafe.Pointer(&pubkey[0]))
-		pubkeylen  = C.size_t(len(pubkey))
-		out        = make([]byte, 65)
-		outdata    = (*C.uchar)(unsafe.Pointer(&out[0]))
-		outlen     = C.size_t(len(out))
-	)
-	if C.secp256k1_ext_reencode_pubkey(context, outdata, outlen, pubkeydata, pubkeylen) == 0 {
-		return nil, nil
-	}
-	return new(big.Int).SetBytes(out[1:33]), new(big.Int).SetBytes(out[33:])
+	return secp256k1.DecompressPubkey(pubkey)
 }
 
 // CompressPubkey encodes a public key to 33-byte compressed format.
 func CompressPubkey(x, y *big.Int) []byte {
-	var (
-		pubkey     = S256().Marshal(x, y)
-		pubkeydata = (*C.uchar)(unsafe.Pointer(&pubkey[0]))
-		pubkeylen  = C.size_t(len(pubkey))
-		out        = make([]byte, 33)
-		outdata    = (*C.uchar)(unsafe.Pointer(&out[0]))
-		outlen     = C.size_t(len(out))
-	)
-	if C.secp256k1_ext_reencode_pubkey(context, outdata, outlen, pubkeydata, pubkeylen) == 0 {
-		panic("libsecp256k1 error")
-	}
-	return out
-}
-
-func checkSignature(sig []byte) error {
-	if len(sig) != 65 {
-		return ErrInvalidSignatureLen
-	}
-	if sig[64] >= 4 {
-		return ErrInvalidRecoveryID
-	}
-	return nil
+	return secp256k1.CompressPubkey(x, y)
 }

l2geth/ethclient/ethclient.go

@@ -154,6 +154,13 @@ func (ec *Client) getBlock(ctx context.Context, method string, args ...interface
 		if tx.From != nil {
 			setSenderFromServer(tx.tx, *tx.From, body.Hash)
 		}
+		meta := types.NewTransactionMeta(
+			tx.meta.L1BlockNumber, tx.meta.L1Timestamp,
+			tx.meta.L1MessageSender, tx.meta.QueueOrigin,
+			tx.meta.Index, tx.meta.QueueIndex,
+			tx.meta.RawTransaction,
+		)
+		tx.tx.SetTransactionMeta(meta)
 		txs[i] = tx.tx
 	}
 	return types.NewBlockWithHeader(head).WithBody(txs, uncles), nil
@@ -182,9 +189,30 @@ func (ec *Client) HeaderByNumber(ctx context.Context, number *big.Int) (*types.H
 
 type rpcTransaction struct {
 	tx   *types.Transaction
+	meta *rpcTransactionMeta
 	txExtraInfo
 }
 
+//go:generate gencodec -type rpcTransactionMeta -field-override rpcTransactionMetaMarshaling -out gen_rpc_tx_meta_json.go
+
+type rpcTransactionMeta struct {
+	L1BlockNumber   *big.Int          `json:"l1BlockNumber"`
+	L1Timestamp     uint64            `json:"l1Timestamp"`
+	L1MessageSender *common.Address   `json:"l1MessageSender"`
+	QueueOrigin     types.QueueOrigin `json:"queueOrigin"`
+	Index           *uint64           `json:"index"`
+	QueueIndex      *uint64           `json:"queueIndex"`
+	RawTransaction  []byte            `json:"rawTransaction"`
+}
+
+type rpcTransactionMetaMarshaling struct {
+	L1BlockNumber  *hexutil.Big
+	L1Timestamp    hexutil.Uint64
+	Index          *hexutil.Uint64
+	QueueIndex     *hexutil.Uint64
+	RawTransaction hexutil.Bytes
+}
+
 type txExtraInfo struct {
 	BlockNumber *string         `json:"blockNumber,omitempty"`
 	BlockHash   *common.Hash    `json:"blockHash,omitempty"`
@@ -195,6 +223,9 @@ func (tx *rpcTransaction) UnmarshalJSON(msg []byte) error {
 	if err := json.Unmarshal(msg, &tx.tx); err != nil {
 		return err
 	}
+	if err := json.Unmarshal(msg, &tx.meta); err != nil {
+		return err
+	}
 	return json.Unmarshal(msg, &tx.txExtraInfo)
 }
 

l2geth/ethclient/gen_rpc_tx_meta_json.go

+// Code generated by github.com/fjl/gencodec. DO NOT EDIT.
+
+package ethclient
+
+import (
+	"encoding/json"
+	"math/big"
+
+	"github.com/ethereum-optimism/optimism/l2geth/common"
+	"github.com/ethereum-optimism/optimism/l2geth/common/hexutil"
+	"github.com/ethereum-optimism/optimism/l2geth/core/types"
+)
+
+var _ = (*rpcTransactionMetaMarshaling)(nil)
+
+// MarshalJSON marshals as JSON.
+func (r rpcTransactionMeta) MarshalJSON() ([]byte, error) {
+	type rpcTransactionMeta struct {
+		L1BlockNumber   *hexutil.Big      `json:"l1BlockNumber"`
+		L1Timestamp     hexutil.Uint64    `json:"l1Timestamp"`
+		L1MessageSender *common.Address   `json:"l1MessageSender"`
+		QueueOrigin     types.QueueOrigin `json:"queueOrigin"`
+		Index           *hexutil.Uint64   `json:"index"`
+		QueueIndex      *hexutil.Uint64   `json:"queueIndex"`
+		RawTransaction  hexutil.Bytes     `json:"rawTransaction"`
+	}
+	var enc rpcTransactionMeta
+	enc.L1BlockNumber = (*hexutil.Big)(r.L1BlockNumber)
+	enc.L1Timestamp = hexutil.Uint64(r.L1Timestamp)
+	enc.L1MessageSender = r.L1MessageSender
+	enc.QueueOrigin = r.QueueOrigin
+	enc.Index = (*hexutil.Uint64)(r.Index)
+	enc.QueueIndex = (*hexutil.Uint64)(r.QueueIndex)
+	enc.RawTransaction = r.RawTransaction
+	return json.Marshal(&enc)
+}
+
+// UnmarshalJSON unmarshals from JSON.
+func (r *rpcTransactionMeta) UnmarshalJSON(input []byte) error {
+	type rpcTransactionMeta struct {
+		L1BlockNumber   *hexutil.Big       `json:"l1BlockNumber"`
+		L1Timestamp     *hexutil.Uint64    `json:"l1Timestamp"`
+		L1MessageSender *common.Address    `json:"l1MessageSender"`
+		QueueOrigin     *types.QueueOrigin `json:"queueOrigin"`
+		Index           *hexutil.Uint64    `json:"index"`
+		QueueIndex      *hexutil.Uint64    `json:"queueIndex"`
+		RawTransaction  *hexutil.Bytes     `json:"rawTransaction"`
+	}
+	var dec rpcTransactionMeta
+	if err := json.Unmarshal(input, &dec); err != nil {
+		return err
+	}
+	if dec.L1BlockNumber != nil {
+		r.L1BlockNumber = (*big.Int)(dec.L1BlockNumber)
+	}
+	if dec.L1Timestamp != nil {
+		r.L1Timestamp = uint64(*dec.L1Timestamp)
+	}
+	if dec.L1MessageSender != nil {
+		r.L1MessageSender = dec.L1MessageSender
+	}
+	if dec.QueueOrigin != nil {
+		r.QueueOrigin = *dec.QueueOrigin
+	}
+	if dec.Index != nil {
+		r.Index = (*uint64)(dec.Index)
+	}
+	if dec.QueueIndex != nil {
+		r.QueueIndex = (*uint64)(dec.QueueIndex)
+	}
+	if dec.RawTransaction != nil {
+		r.RawTransaction = *dec.RawTransaction
+	}
+	return nil
+}

l2geth/go.mod

@@ -3,69 +3,59 @@ module github.com/ethereum-optimism/optimism/l2geth
 go 1.15
 
 require (
-	github.com/Azure/azure-pipeline-go v0.2.2 // indirect
 	github.com/Azure/azure-storage-blob-go v0.7.0
-	github.com/Azure/go-autorest/autorest/adal v0.8.0 // indirect
-	github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 // indirect
-	github.com/VictoriaMetrics/fastcache v1.5.7
+	github.com/VictoriaMetrics/fastcache v1.6.0
 	github.com/aristanetworks/goarista v0.0.0-20170210015632-ea17b1a17847
 	github.com/aws/aws-sdk-go v1.42.6
-	github.com/btcsuite/btcd v0.0.0-20171128150713-2e60448ffcc6
+	github.com/btcsuite/btcd v0.22.0-beta
 	github.com/cespare/cp v0.1.0
-	github.com/cloudflare/cloudflare-go v0.10.2-0.20190916151808-a80f83b9add9
+	github.com/cloudflare/cloudflare-go v0.14.0
 	github.com/davecgh/go-spew v1.1.1
 	github.com/deckarep/golang-set v0.0.0-20180603214616-504e848d77ea
 	github.com/docker/docker v20.10.10+incompatible
-	github.com/edsrzf/mmap-go v0.0.0-20160512033002-935e0e8a636c
+	github.com/edsrzf/mmap-go v1.0.0
 	github.com/elastic/gosigar v0.8.1-0.20180330100440-37f05ff46ffa
-	github.com/fatih/color v1.3.0
-	github.com/fjl/memsize v0.0.0-20180418122429-ca190fb6ffbc
+	github.com/ethereum/go-ethereum v1.10.12
+	github.com/fatih/color v1.7.0
+	github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5
 	github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff
-	github.com/go-ole/go-ole v1.2.1 // indirect
 	github.com/go-resty/resty/v2 v2.4.0
 	github.com/go-stack/stack v1.8.0
-	github.com/golang/protobuf v1.3.2-0.20190517061210-b285ee9cfc6c
-	github.com/golang/snappy v0.0.1
-	github.com/google/go-cmp v0.5.1 // indirect
-	github.com/gorilla/websocket v1.4.1-0.20190629185528-ae1634f6a989
-	github.com/graph-gophers/graphql-go v0.0.0-20191115155744-f33e81362277
-	github.com/hashicorp/golang-lru v0.5.4
-	github.com/huin/goupnp v1.0.0
-	github.com/influxdata/influxdb v1.2.3-0.20180221223340-01288bdb0883
+	github.com/golang/protobuf v1.4.3
+	github.com/golang/snappy v0.0.4
+	github.com/gorilla/websocket v1.4.2
+	github.com/graph-gophers/graphql-go v0.0.0-20201113091052-beb923fada29
+	github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d
+	github.com/huin/goupnp v1.0.2
+	github.com/influxdata/influxdb v1.8.3
 	github.com/jackpal/go-nat-pmp v1.0.2-0.20160603034137-1fa385a6f458
 	github.com/jarcoal/httpmock v1.0.8
-	github.com/julienschmidt/httprouter v1.1.1-0.20170430222011-975b5c4c7c21
-	github.com/karalabe/usb v0.0.0-20190919080040-51dc0efba356
-	github.com/kr/pretty v0.1.0 // indirect
-	github.com/kylelemons/godebug v1.1.0 // indirect
-	github.com/mattn/go-colorable v0.1.0
-	github.com/mattn/go-isatty v0.0.5-0.20180830101745-3fb116b82035
-	github.com/naoina/go-stringutil v0.1.0 // indirect
+	github.com/julienschmidt/httprouter v1.2.0
+	github.com/karalabe/usb v0.0.0-20211005121534-4c5740d64559
+	github.com/mattn/go-colorable v0.1.8
+	github.com/mattn/go-isatty v0.0.12
 	github.com/naoina/toml v0.1.2-0.20170918210437-9fafd6967416
-	github.com/olekukonko/tablewriter v0.0.2-0.20190409134802-7e037d187b0c
+	github.com/olekukonko/tablewriter v0.0.5
 	github.com/pborman/uuid v0.0.0-20170112150404-1b00554d8222
 	github.com/peterh/liner v1.1.1-0.20190123174540-a2c9a5303de7
-	github.com/prometheus/tsdb v0.6.2-0.20190402121629-4f204dcbc150
+	github.com/prometheus/tsdb v0.7.1
 	github.com/rjeczalik/notify v0.9.1
 	github.com/robertkrimen/otto v0.0.0-20191219234010-c382bd3c16ff
-	github.com/rs/cors v0.0.0-20160617231935-a62a804a8a00
-	github.com/rs/xhandler v0.0.0-20160618193221-ed27b6fd6521 // indirect
+	github.com/rs/cors v1.7.0
 	github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4
 	github.com/steakknife/bloomfilter v0.0.0-20180922174646-6819c0d2a570
 	github.com/steakknife/hamming v0.0.0-20180906055917-c99c65617cd3 // indirect
-	github.com/stretchr/testify v1.4.0
-	github.com/syndtr/goleveldb v1.0.1-0.20190923125748-758128399b1d
+	github.com/stretchr/testify v1.7.0
+	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
 	github.com/tyler-smith/go-bip39 v1.0.1-0.20181017060643-dbb3b84ba2ef
 	github.com/wsddn/go-ecdh v0.0.0-20161211032359-48726bab9208
-	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
-	golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9
-	golang.org/x/sys v0.0.0-20210423082822-04245dca01da
+	golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
+	golang.org/x/sys v0.0.0-20210816183151-1e6c022a8912
 	golang.org/x/text v0.3.6
-	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
-	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
+	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce
-	gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200316214253-d7b0ff38cac9
+	gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200619000410-60c24ae608a6
 	gopkg.in/sourcemap.v1 v1.0.5 // indirect
 	gopkg.in/urfave/cli.v1 v1.20.0
 	gotest.tools/v3 v3.0.3 // indirect

l2geth/go.sum

+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+cloud.google.com/go v0.43.0/go.mod h1:BOSR3VbTLkk6FDC/TcffxP4NF/FFBGA5ku+jvKOP7pg=
+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
+cloud.google.com/go v0.51.0/go.mod h1:hWtGJ6gnXH+KgDv+V0zFGDvpi07n3z8ZNj3T1RW0Gcw=
+cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
+cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
+cloud.google.com/go/bigtable v1.2.0/go.mod h1:JcVAOl45lrTmQfLj7T6TxyMzIN/3FGGcFm+2xVAli2o=
+cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
+cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
+cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
+cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
+cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
+collectd.org v0.3.0/go.mod h1:A/8DzQBkF6abtvrT2j/AU/4tiBgJWYyh0y/oB/4MlWE=
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/Azure/azure-pipeline-go v0.2.1/go.mod h1:UGSo8XybXnIGZ3epmeBw7Jdz+HiUVpqIlpz/HKHylF4=
 github.com/Azure/azure-pipeline-go v0.2.2 h1:6oiIS9yaG6XCCzhgAgKFfIWyo4LLCiDhZot6ltoThhY=
 github.com/Azure/azure-pipeline-go v0.2.2/go.mod h1:4rQ/NZncSvGqNkkOsNpOU1tgoNuIlp9AfUH5G1tvCHc=
@@ -20,159 +40,353 @@ github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6L
 github.com/Azure/go-autorest/tracing v0.5.0 h1:TRn4WjSnkcSy5AEG3pnbtFSwNtwzjr4VYyQflFE619k=
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 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce h1:+JknDZhAj8YMt7GC73Ei8pv4MzjDUNPHgQWJdtMAaDU=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce/go.mod h1:5AcXVHNjg+BDxry382+8OKon8SEWiKktQR07RKPsv1c=
-gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200316214253-d7b0ff38cac9 h1:ITeyKbRetrVzqR3U1eY+ywgp7IBspGd1U/bkwd1gWu4=
-gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200316214253-d7b0ff38cac9/go.mod h1:uAJfkITjFhyEEuUfm7bsmCZRbW5WRq8s9EY8HZ6hCns=
+gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200619000410-60c24ae608a6 h1:a6cXbcDDUkSBlpnkWV1bJ+vv3mOgQEltEJ2rPxroVu0=
+gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200619000410-60c24ae608a6/go.mod h1:uAJfkITjFhyEEuUfm7bsmCZRbW5WRq8s9EY8HZ6hCns=
 gopkg.in/sourcemap.v1 v1.0.5 h1:inv58fC9f9J3TK2Y2R1NPntXEn3/wjWHkonhIUODNTI=
 gopkg.in/sourcemap.v1 v1.0.5/go.mod h1:2RlvNNSMglmRrcvhfuzp4hQHwOtjxlbjX7UPY/GXb78=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
@@ -245,7 +659,23 @@ gopkg.in/urfave/cli.v1 v1.20.0 h1:NdAVW6RYxDif9DhDHaAortIu956m2c0v+09AZBPTbE0=
 gopkg.in/urfave/cli.v1 v1.20.0/go.mod h1:vuBzUtMdQeixQj8LVd+/98pzhxNGQoyuPBlsXHOQNO0=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
+gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 gotest.tools/v3 v3.0.3 h1:4AuOwCGf4lLR9u3YOe2awrHygurzhO/HeQ6laiA6Sx0=
 gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+honnef.co/go/tools v0.1.3/go.mod h1:NgwopIslSNH47DimFoV78dnkksY2EFtX0ajyb3K/las=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

l2geth/miner/worker.go

@@ -884,13 +884,8 @@ func (w *worker) commitTransactionsWithError(txs *types.TransactionsByPriceAndNo
 		// Return specific execution errors directly to the user to
 		// avoid returning the generic ErrCannotCommitTxnErr. It is safe
 		// to return the error directly since l2geth only processes at
-		// most one transaction per block. Currently, we map
-		// ErrNonceTooHigh to ErrNonceTooLow to match the behavior of
-		// the mempool, but this mapping will be removed at a later
-		// point once we decided to expose ErrNonceTooHigh to users.
-		if err == core.ErrNonceTooHigh {
-			return core.ErrNonceTooLow
-		} else if err != nil {
+		// most one transaction per block.
+		if err != nil {
 			return err
 		}
 	}

l2geth/package.json

 {
   "name": "@eth-optimism/l2geth",
-  "version": "0.5.3",
+  "version": "0.5.5",
   "private": true,
   "devDependencies": {}
 }

l2geth/rpc/constants_unix.go

@@ -21,7 +21,7 @@ package rpc
 /*
 #include <sys/un.h>
 
-int max_socket_path_size() {
+int max_socket_path_size2() {
 struct sockaddr_un s;
 return sizeof(s.sun_path);
 }
@@ -29,5 +29,5 @@ return sizeof(s.sun_path);
 import "C"
 
 var (
-	max_path_size = C.max_socket_path_size()
+	max_path_size = C.max_socket_path_size2()
 )

ops/Makefile

+BATCH_SUBMITTER ?= docker-compose.ts-batch-submitter.yml
+DOCKER_COMPOSE_CMD := docker-compose \
+	-f docker-compose.yml \
+	-f $(BATCH_SUBMITTER)
+
 build:
 	DOCKER_BUILDKIT=1 \
-	docker-compose \
-		-f docker-compose.yml build
+	$(DOCKER_COMPOSE_CMD) \
+		build
 .PHONY: build
 
 up: down
 	DOCKER_BUILDKIT=1 \
-	docker-compose \
-		-f docker-compose.yml \
+	$(DOCKER_COMPOSE_CMD) \
 		up --build --detach
 .PHONY: up
 
 down:
-	docker-compose \
-		-f docker-compose.yml \
+	$(DOCKER_COMPOSE_CMD) \
 		down
 .PHONY: down
 
 ps:
-	docker-compose \
-		-f docker-compose.yml \
+	$(DOCKER_COMPOSE_CMD) \
 		ps
 .PHONY: ps
 
 up-metrics: down-metrics
 	DOCKER_BUILDKIT=1 \
-	docker-compose \
-		-f docker-compose.yml \
+	$(DOCKER_COMPOSE_CMD) \
 		-f docker-compose-metrics.yml \
 		up --build --detach
 .PHONY: up-metrics
 
 down-metrics:
-	docker-compose \
-		-f docker-compose.yml \
+	$(DOCKER_COMPOSE_CMD) \
 		-f docker-compose-metrics.yml \
 		down
 .PHONY: down-metrics
 
 ps-metrics:
-	docker-compose \
-		-f docker-compose.yml \
+	$(DOCKER_COMPOSE_CMD) \
 		-f docker-compose-metrics.yml \
 		ps
 .PHONY: ps

ops/README.md

@@ -22,9 +22,11 @@ Supplementing the base configuration is an additional metric enabling file, `doc
 
 Also available for testing is the `rpc-proxy` service in the `docker-compose-rpc-proxy.yml` file. It can be used to restrict what RPC methods are allowed to the Sequencer.
 
-The base stack can be started and stopped with a command like this (there is no need to specify the default docker-compose.yml)
+The base stack can be started and stopped with a command like this:
 ```
 docker-compose \
+    -f docker-compose.yml \
+    -f docker-compose.ts-batch-submitter.yml \
     up --build --detach
 ```
 
@@ -34,13 +36,17 @@ To start the stack with monitoring enabled, just add the metric composition file
 ```
 docker-compose \
     -f docker-compose.yml \
+    -f docker-compose.ts-batch-submitter.yml \
     -f docker-compose-metrics.yml \
     up --build --detach
 ```
 
 Optionally, run a verifier along the rest of the stack. Run a replica with the same command by switching the service name!
 ```
-docker-compose up --scale \
+docker-compose 
+    -f docker-compose.yml \
+    -f docker-compose.ts-batch-submitter.yml \
+    up --scale \
     verifier=1 \
     --build --detach
 ```
@@ -52,6 +58,24 @@ A Makefile has been provided for convience. The following targets are available.
 - make up-metrics
 - make down-metrics
 
+## Using the Go Batch Submitter
+
+The existing Typescript batch submitter is in the process of being reimplemented
+in Go. During this transition, the user is required to specify which batch
+submitter to use with docker-compose.
+
+The commands above all use the Typescript batch submitter, by specifying
+`-f docker-compose.ts-batch-submitter.yml`. This can be swapped out for the go
+batch submitter by supplying `-f docker-compose.go-batch-submitter.yml` instead.
+
+Additionally, the `make` targets assume the use of the Typescript batch
+submitter. This can be overridden by setting the `BATCH_SUBMITTER` environment
+variable, e.g. `BATCH_SUBMITTER=docker-compose.go-batch-submitter.yml make up`.
+
+Once the transition is complete, specifying the desired batch submitter will be
+obsolete, and the Go batch submitter will be selected by default from the
+`docker-compose.yml` file and `Makefile`.
+
 ## Cross domain communication
 
 By default, the `message-relayer` service is turned off. This means that

ops/docker-compose.go-batch-submitter.yml

+services:
+  batch_submitter:
+    depends_on:
+      - l1_chain
+      - deployer
+      - l2geth
+    build:
+      context: ..
+      dockerfile: ./ops/docker/Dockerfile.batch-submitter-service
+    entrypoint: ./batch-submitter.sh
+    env_file:
+      - ./envs/batch-submitter.env
+    environment:
+        L1_ETH_RPC: http://l1_chain:8545
+        L2_ETH_RPC: http://l2geth:8545
+        URL: http://deployer:8081/addresses.json
+        BATCH_SUBMITTER_SEQUENCER_PRIVATE_KEY: "0x59c6995e998f97a5a0044966f0945389dc9e86dae88c7a8412f4603b6b78690d"
+        BATCH_SUBMITTER_PROPOSER_PRIVATE_KEY: "0x5de4111afa1a4b94908f83103eb1f1706367c2e68ca870fc3fb9a804cdab365a"

ops/docker-compose.ts-batch-submitter.yml

+services:
+  batch_submitter:
+    depends_on:
+      - l1_chain
+      - deployer
+      - l2geth
+    build:
+      context: ..
+      dockerfile: ./ops/docker/Dockerfile.packages
+      target: batch-submitter
+    entrypoint: ./batches.sh
+    env_file:
+      - ./envs/batches.env
+    environment:
+        L1_NODE_WEB3_URL: http://l1_chain:8545
+        L2_NODE_WEB3_URL: http://l2geth:8545
+        URL: http://deployer:8081/addresses.json
+        SEQUENCER_PRIVATE_KEY: "0x59c6995e998f97a5a0044966f0945389dc9e86dae88c7a8412f4603b6b78690d"
+        PROPOSER_PRIVATE_KEY: "0x5de4111afa1a4b94908f83103eb1f1706367c2e68ca870fc3fb9a804cdab365a"

ops/docker-compose.yml

@@ -122,25 +122,6 @@ services:
         POLLING_INTERVAL: 500
         GET_LOGS_INTERVAL: 500
 
-  batch_submitter:
-    depends_on:
-      - l1_chain
-      - deployer
-      - l2geth
-    build:
-      context: ..
-      dockerfile: ./ops/docker/Dockerfile.packages
-      target: batch-submitter
-    entrypoint: ./batches.sh
-    env_file:
-      - ./envs/batches.env
-    environment:
-        L1_NODE_WEB3_URL: http://l1_chain:8545
-        L2_NODE_WEB3_URL: http://l2geth:8545
-        URL: http://deployer:8081/addresses.json
-        SEQUENCER_PRIVATE_KEY: "0x59c6995e998f97a5a0044966f0945389dc9e86dae88c7a8412f4603b6b78690d"
-        PROPOSER_PRIVATE_KEY: "0x5de4111afa1a4b94908f83103eb1f1706367c2e68ca870fc3fb9a804cdab365a"
-
   verifier:
     depends_on:
       - l1_chain

ops/docker/Dockerfile.batch-submitter-service

+FROM golang:1.15-alpine3.13 as builder
+
+RUN apk add --no-cache make gcc musl-dev linux-headers git jq bash
+
+COPY ./l2geth /l2geth
+COPY ./go/batch-submitter/go.mod ./go/batch-submitter/go.sum /go/batch-submitter/
+WORKDIR /go/batch-submitter
+RUN go mod graph | grep -v l2geth | awk '{if ($1 !~ "@") print $2}' | xargs -n 1 go get
+COPY ./go/batch-submitter/ ./
+RUN make
+
+FROM alpine:3.13
+
+RUN apk add --no-cache ca-certificates jq curl
+COPY --from=builder /go/batch-submitter/batch-submitter /usr/local/bin/
+
+COPY ./ops/scripts/batch-submitter.sh .
+ENTRYPOINT ["batch-submitter"]

ops/docker/Dockerfile.geth

@@ -3,8 +3,11 @@ FROM golang:1.15-alpine3.13 as builder
 
 RUN apk add --no-cache make gcc musl-dev linux-headers git
 
-ADD ./l2geth /go-ethereum
-RUN cd /go-ethereum && make geth
+COPY ./l2geth/go.mod ./l2geth/go.sum /go-ethereum/
+WORKDIR /go-ethereum
+RUN go mod download
+COPY ./l2geth ./
+RUN make geth
 
 # Pull Geth into a second stage deploy alpine container
 FROM alpine:3.13

ops/docker/Dockerfile.l2geth-exporter

+FROM golang:1.16 as builder
+
+ADD ./go/l2geth-exporter /app/
+WORKDIR /app/
+RUN make build
+
+FROM alpine:latest
+RUN apk --no-cache add ca-certificates
+WORKDIR /root/
+COPY --from=builder /app/l2geth-exporter /usr/local/bin/
+ENTRYPOINT ["l2geth-exporter"]
+CMD ["--help"]

ops/docker/Dockerfile.packages

@@ -11,7 +11,7 @@ RUN apt-get update -y && apt-get install -y git curl jq python3
 # copy over the needed configs to run the dep installation
 # note: this approach can be a bit unhandy to maintain, but it allows
 # us to cache the installation steps
-WORKDIR /optimism
+WORKDIR /opt/optimism
 COPY *.json yarn.lock ./
 COPY packages/core-utils/package.json ./packages/core-utils/package.json
 COPY packages/common-ts/package.json ./packages/common-ts/package.json
@@ -33,30 +33,30 @@ RUN yarn build
 
 
 FROM base as deployer
-WORKDIR /optimism/packages/contracts
+WORKDIR /opt/optimism/packages/contracts
 COPY ./ops/scripts/deployer.sh .
 CMD ["yarn", "run", "deploy"]
 
 
 FROM base as batch-submitter
-WORKDIR /optimism/packages/batch-submitter
+WORKDIR /opt/optimism/packages/batch-submitter
 COPY ./ops/scripts/batches.sh .
 CMD ["npm", "run", "start"]
 
 
 FROM base as data-transport-layer
-WORKDIR /optimism/packages/data-transport-layer
+WORKDIR /opt/optimism/packages/data-transport-layer
 COPY ./ops/scripts/dtl.sh .
 CMD ["node", "dist/src/services/run.js"]
 
 
 FROM base as integration-tests
-WORKDIR /optimism/integration-tests
+WORKDIR /opt/optimism/integration-tests
 COPY ./ops/scripts/integration-tests.sh ./
 CMD ["yarn", "test:integration"]
 
 
 FROM base as relayer
-WORKDIR /optimism/packages/message-relayer
+WORKDIR /opt/optimism/packages/message-relayer
 COPY ./ops/scripts/relayer.sh .
 CMD ["npm", "run", "start"]

ops/envs/batch-submitter.env

+BUILD_ENV=development
+ETH_NETWORK_NAME=clique
+
+LOG_LEVEL=debug
+BATCH_SUBMITTER_LOG_LEVEL=debug
+BATCH_SUBMITTER_MAX_L1_TX_SIZE=90000
+BATCH_SUBMITTER_MAX_BATCH_SUBMISSION_TIME=0
+BATCH_SUBMITTER_POLL_INTERVAL=500ms
+BATCH_SUBMITTER_NUM_CONFIRMATIONS=1
+BATCH_SUBMITTER_RESUBMISSION_TIMEOUT=1s
+BATCH_SUBMITTER_FINALITY_CONFIRMATIONS=0
+BATCH_SUBMITTER_RUN_TX_BATCH_SUBMITTER=true
+BATCH_SUBMITTER_RUN_STATE_BATCH_SUBMITTER=true
+BATCH_SUBMITTER_SAFE_MINIMUM_ETHER_BALANCE=0
+BATCH_SUBMITTER_CLEAR_PENDING_TXS=false

ops/scripts/batch-submitter.sh

+#!/bin/sh
+
+set -e
+
+RETRIES=${RETRIES:-40}
+
+if [[ ! -z "$URL" ]]; then
+    # get the addrs from the URL provided
+    ADDRESSES=$(curl --fail --show-error --silent --retry-connrefused --retry $RETRIES --retry-delay 5 $URL)
+    # set the env
+    export CTC_ADDRESS=$(echo $ADDRESSES | jq -r '.CanonicalTransactionChain')
+    export SCC_ADDRESS=$(echo $ADDRESSES | jq -r '.StateCommitmentChain')
+fi
+
+
+# waits for l2geth to be up
+curl --fail \
+    --show-error \
+    --silent \
+    --retry-connrefused \
+    --retry $RETRIES \
+    --retry-delay 1 \
+    --output /dev/null \
+    $L2_ETH_RPC
+
+# go
+exec batch-submitter "$@"

package.json

@@ -11,6 +11,7 @@
       "specs",
       "go/gas-oracle",
       "go/batch-submitter",
+      "go/l2geth-exporter",
       "go/proxyd",
       "go/op-exporter",
       "ops/docker/rpc-proxy",

packages/batch-submitter/CHANGELOG.md

 # Changelog
 
+## 0.4.11
+
+### Patch Changes
+
+- 3eb5590b: adds batchTxBuildTime gauge
+- Updated dependencies [b6f89fad]
+  - @eth-optimism/contracts@0.5.7
+
 ## 0.4.10
 
 ### Patch Changes

packages/batch-submitter/package.json

 {
   "private": true,
   "name": "@eth-optimism/batch-submitter",
-  "version": "0.4.10",
+  "version": "0.4.11",
   "description": "[Optimism] Service for submitting transactions and transaction results",
   "main": "dist/index",
   "types": "dist/index",
@@ -34,7 +34,7 @@
   },
   "dependencies": {
     "@eth-optimism/common-ts": "0.2.1",
-    "@eth-optimism/contracts": "0.5.6",
+    "@eth-optimism/contracts": "0.5.7",
     "@eth-optimism/core-utils": "0.7.3",
     "@eth-optimism/ynatm": "^0.2.2",
     "@ethersproject/abstract-provider": "^5.4.1",

packages/batch-submitter/src/batch-submitter/batch-submitter.ts

@@ -31,6 +31,7 @@ interface BatchSubmitterMetrics {
   batchesSubmitted: Counter<string>
   failedSubmissions: Counter<string>
   malformedBatches: Counter<string>
+  batchTxBuildTime: Gauge<string>
 }
 
 export abstract class BatchSubmitter {
@@ -293,6 +294,11 @@ export abstract class BatchSubmitter {
         help: 'Count of malformed batches',
         registers: [metrics.registry],
       }),
+      batchTxBuildTime: new metrics.client.Gauge({
+        name: 'batch_tx_build_time',
+        help: 'Time to construct batch transaction',
+        registers: [metrics.registry],
+      }),
     }
   }
 }

packages/batch-submitter/src/batch-submitter/state-batch-submitter.ts

@@ -154,6 +154,9 @@ export class StateBatchSubmitter extends BatchSubmitter {
     startBlock: number,
     endBlock: number
   ): Promise<TransactionReceipt> {
+
+    const batchTxBuildStart = performance.now()
+
     const batch = await this._generateStateCommitmentBatch(startBlock, endBlock)
     const calldata = this.chainContract.interface.encodeFunctionData(
       'appendStateBatch',
@@ -169,6 +172,9 @@ export class StateBatchSubmitter extends BatchSubmitter {
       return
     }
 
+    const batchTxBuildEnd = performance.now()
+    this.metrics.batchTxBuildTime.set(batchTxBuildEnd - batchTxBuildStart)
+
     const offsetStartsAtIndex = startBlock - this.blockOffset
     this.logger.debug('Submitting batch.', { calldata })
 

packages/batch-submitter/src/batch-submitter/tx-batch-submitter.ts

@@ -203,6 +203,8 @@ export class TransactionBatchSubmitter extends BatchSubmitter {
       return
     }
 
+    const batchTxBuildStart = performance.now()
+
     const params = await this._generateSequencerBatchParams(
       startBlock,
       endBlock
@@ -226,7 +228,11 @@ export class TransactionBatchSubmitter extends BatchSubmitter {
     if (!wasBatchTruncated && !this._shouldSubmitBatch(batchSizeInBytes)) {
       return
     }
-    this.metrics.numTxPerBatch.observe(endBlock - startBlock)
+
+    const batchTxBuildEnd = performance.now()
+    this.metrics.batchTxBuildTime.set(batchTxBuildEnd - batchTxBuildStart)
+
+    this.metrics.numTxPerBatch.observe(batchParams.totalElementsToAppend)
     const l1tipHeight = await this.signer.provider.getBlockNumber()
     this.logger.debug('Submitting batch.', {
       calldata: batchParams,

packages/contracts/CHANGELOG.md

 # Changelog
 
+## 0.5.7
+
+### Patch Changes
+
+- b6f89fad: Adds a new TestLib_CrossDomainUtils so we can properly test cross chain encoding functions
+
 ## 0.5.6
 
 ### Patch Changes

packages/contracts/package.json

 {
   "name": "@eth-optimism/contracts",
-  "version": "0.5.6",
+  "version": "0.5.7",
   "description": "[Optimism] L1 and L2 smart contracts for Optimistic Ethereum",
   "main": "dist/index",
   "types": "dist/index",

packages/data-transport-layer/CHANGELOG.md

 # data transport layer
 
+## 0.5.10
+
+### Patch Changes
+
+- Updated dependencies [b6f89fad]
+  - @eth-optimism/contracts@0.5.7
+
 ## 0.5.9
 
 ### Patch Changes

packages/data-transport-layer/package.json

 {
   "private": true,
   "name": "@eth-optimism/data-transport-layer",
-  "version": "0.5.9",
+  "version": "0.5.10",
   "description": "[Optimism] Service for shuttling data from L1 into L2",
   "main": "dist/index",
   "types": "dist/index",
@@ -37,7 +37,7 @@
   },
   "dependencies": {
     "@eth-optimism/common-ts": "0.2.1",
-    "@eth-optimism/contracts": "0.5.6",
+    "@eth-optimism/contracts": "0.5.7",
     "@eth-optimism/core-utils": "0.7.3",
     "@ethersproject/providers": "^5.4.5",
     "@ethersproject/transactions": "^5.4.0",

packages/message-relayer/CHANGELOG.md

 # @eth-optimism/message-relayer
 
+## 0.2.10
+
+### Patch Changes
+
+- Updated dependencies [b6f89fad]
+  - @eth-optimism/contracts@0.5.7
+
 ## 0.2.9
 
 ### Patch Changes

packages/message-relayer/exec/run-message-relayer.js

-#!/usr/bin/env node
-
-const main = require('../dist/exec/run').default
-
-;(async () => {
-  await main()
-})().catch((err) => {
-  console.log(err)
-  process.exit(1)
-})

packages/message-relayer/package.json

 {
   "name": "@eth-optimism/message-relayer",
-  "version": "0.2.9",
+  "version": "0.2.10",
   "description": "[Optimism] Service for automatically relaying L2 to L1 transactions",
   "main": "dist/index",
   "types": "dist/index",
@@ -11,7 +11,7 @@
     "withdraw": "./src/exec/withdraw.ts"
   },
   "scripts": {
-    "start": "node ./exec/run-message-relayer.js",
+    "start": "ts-node ./src/exec/run.ts",
     "build": "tsc -p ./tsconfig.build.json",
     "clean": "rimraf  dist/ ./tsconfig.build.tsbuildinfo",
     "lint": "yarn lint:fix && yarn lint:check",
@@ -35,7 +35,7 @@
   },
   "dependencies": {
     "@eth-optimism/common-ts": "0.2.1",
-    "@eth-optimism/contracts": "0.5.6",
+    "@eth-optimism/contracts": "0.5.7",
     "@eth-optimism/core-utils": "0.7.3",
     "@sentry/node": "^6.3.1",
     "bcfg": "^0.1.6",
@@ -72,6 +72,7 @@
     "lodash": "^4.17.21",
     "mocha": "^8.4.0",
     "prettier": "^2.3.1",
+    "ts-node": "^10.0.0",
     "typescript": "^4.3.5"
   }
 }

packages/sdk/CHANGELOG.md

 # @eth-optimism/sdk
 
+## 0.0.3
+
+### Patch Changes
+
+- Updated dependencies [b6f89fad]
+  - @eth-optimism/contracts@0.5.7
+
 ## 0.0.2
+
 ### Patch Changes
 
 - Updated dependencies [bbd42e03]

packages/sdk/README.md

@@ -4,6 +4,13 @@
 
 The `@eth-optimism/sdk` package provides a set of tools for interacting with Optimistic Ethereum.
 
+## NOTICE
+
+WARNING: This package is currently under construction.
+You can definitely try to use it, but you probably won't have a good time.
+Lots of pieces are missing.
+We will announce the 1.0.0 release on Discord and on Twitter once it's ready, keep an eye out!
+
 ## Installation
 
 ```

packages/sdk/package.json

 {
   "name": "@eth-optimism/sdk",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "description": "[Optimism] Tools for working with Optimistic Ethereum",
   "main": "dist/index",
   "types": "dist/index",
@@ -60,7 +60,7 @@
     "typescript": "^4.3.5"
   },
   "dependencies": {
-    "@eth-optimism/contracts": "0.5.6",
+    "@eth-optimism/contracts": "0.5.7",
     "@eth-optimism/core-utils": "0.7.3",
     "@ethersproject/abstract-provider": "^5.5.1",
     "@ethersproject/abstract-signer": "^5.5.0",

packages/sdk/src/cross-chain-provider.ts

+/* eslint-disable @typescript-eslint/no-unused-vars */
+import {
+  Provider,
+  BlockTag,
+  TransactionReceipt,
+} from '@ethersproject/abstract-provider'
+import { ethers, BigNumber, Event } from 'ethers'
+import {
+  ICrossChainProvider,
+  OEContracts,
+  OEContractsLike,
+  MessageLike,
+  TransactionLike,
+  AddressLike,
+  NumberLike,
+  ProviderLike,
+  CrossChainMessage,
+  MessageDirection,
+  MessageStatus,
+  TokenBridgeMessage,
+  MessageReceipt,
+  CustomBridges,
+  CustomBridgesLike,
+} from './interfaces'
+import {
+  toProvider,
+  toBigNumber,
+  toTransactionHash,
+  DeepPartial,
+  getAllOEContracts,
+  getCustomBridges,
+} from './utils'
+
+export class CrossChainProvider implements ICrossChainProvider {
+  public l1Provider: Provider
+  public l2Provider: Provider
+  public l1ChainId: number
+  public contracts: OEContracts
+  public bridges: CustomBridges
+
+  /**
+   * Creates a new CrossChainProvider instance.
+   *
+   * @param opts Options for the provider.
+   * @param opts.l1Provider Provider for the L1 chain, or a JSON-RPC url.
+   * @param opts.l2Provider Provider for the L2 chain, or a JSON-RPC url.
+   * @param opts.l1ChainId Chain ID for the L1 chain.
+   * @param opts.contracts Optional contract address overrides.
+   */
+  constructor(opts: {
+    l1Provider: ProviderLike
+    l2Provider: ProviderLike
+    l1ChainId: NumberLike
+    contracts?: DeepPartial<OEContractsLike>
+    bridges?: Partial<CustomBridgesLike>
+  }) {
+    this.l1Provider = toProvider(opts.l1Provider)
+    this.l2Provider = toProvider(opts.l2Provider)
+    this.l1ChainId = toBigNumber(opts.l1ChainId).toNumber()
+    this.contracts = getAllOEContracts(this.l1ChainId, {
+      l1SignerOrProvider: this.l1Provider,
+      l2SignerOrProvider: this.l2Provider,
+      overrides: opts.contracts,
+    })
+    this.bridges = getCustomBridges(this.l1ChainId, {
+      l1SignerOrProvider: this.l1Provider,
+      l2SignerOrProvider: this.l2Provider,
+      overrides: opts.bridges,
+    })
+  }
+
+  public async getMessagesByTransaction(
+    transaction: TransactionLike,
+    opts: {
+      direction?: MessageDirection
+    } = {}
+  ): Promise<CrossChainMessage[]> {
+    const txHash = toTransactionHash(transaction)
+
+    let receipt: TransactionReceipt
+    if (opts.direction !== undefined) {
+      // Get the receipt for the requested direction.
+      if (opts.direction === MessageDirection.L1_TO_L2) {
+        receipt = await this.l1Provider.getTransactionReceipt(txHash)
+      } else {
+        receipt = await this.l2Provider.getTransactionReceipt(txHash)
+      }
+    } else {
+      // Try both directions, starting with L1 => L2.
+      receipt = await this.l1Provider.getTransactionReceipt(txHash)
+      if (receipt) {
+        opts.direction = MessageDirection.L1_TO_L2
+      } else {
+        receipt = await this.l2Provider.getTransactionReceipt(txHash)
+        opts.direction = MessageDirection.L2_TO_L1
+      }
+    }
+
+    if (!receipt) {
+      throw new Error(`unable to find transaction receipt for ${txHash}`)
+    }
+
+    // By this point opts.direction will always be defined.
+    const messenger =
+      opts.direction === MessageDirection.L1_TO_L2
+        ? this.contracts.l1.L1CrossDomainMessenger
+        : this.contracts.l2.L2CrossDomainMessenger
+
+    return receipt.logs
+      .filter((log) => {
+        // Only look at logs emitted by the messenger address
+        return log.address === messenger.address
+      })
+      .filter((log) => {
+        // Only look at SentMessage logs specifically
+        const parsed = messenger.interface.parseLog(log)
+        return parsed.name === 'SentMessage'
+      })
+      .map((log) => {
+        // Convert each SentMessage log into a message object
+        const parsed = messenger.interface.parseLog(log)
+        return {
+          direction: opts.direction,
+          target: parsed.args.target,
+          sender: parsed.args.sender,
+          message: parsed.args.message,
+          messageNonce: parsed.args.messageNonce,
+          logIndex: log.logIndex,
+          blockNumber: log.blockNumber,
+          transactionHash: log.transactionHash,
+        }
+      })
+  }
+
+  public async getMessagesByAddress(
+    address: AddressLike,
+    opts?: {
+      direction?: MessageDirection
+      fromBlock?: NumberLike
+      toBlock?: NumberLike
+    }
+  ): Promise<CrossChainMessage[]> {
+    throw new Error('Not implemented')
+  }
+
+  public async getTokenBridgeMessagesByAddress(
+    address: AddressLike,
+    opts: {
+      direction?: MessageDirection
+      fromBlock?: BlockTag
+      toBlock?: BlockTag
+    } = {}
+  ): Promise<TokenBridgeMessage[]> {
+    const parseTokenEvent = (
+      event: Event,
+      dir: MessageDirection
+    ): TokenBridgeMessage => {
+      return {
+        direction: dir,
+        from: event.args._from,
+        to: event.args._to,
+        l1Token: event.args._l1Token || ethers.constants.AddressZero,
+        l2Token: event.args._l2Token || this.contracts.l2.OVM_ETH.address,
+        amount: event.args._amount,
+        data: event.args._data,
+        logIndex: event.logIndex,
+        blockNumber: event.blockNumber,
+        transactionHash: event.transactionHash,
+      }
+    }
+
+    // Make sure you provide a direction if you specify a block range. Block ranges don't make
+    // sense to use on both chains at the same time.
+    if (opts.fromBlock !== undefined || opts.toBlock !== undefined) {
+      if (opts.direction === undefined) {
+        throw new Error('direction must be specified when using a block range')
+      }
+    }
+
+    // Keep track of all of the messages triggered by the address in question.
+    // We'll add messages to this list as we find them, based on the direction that the user has
+    // requested we find messages in. If the user hasn't requested a direction, we find messages in
+    // both directions.
+    const messages: TokenBridgeMessage[] = []
+
+    // First find all messages in the L1 to L2 direction.
+    if (
+      opts.direction === undefined ||
+      opts.direction === MessageDirection.L1_TO_L2
+    ) {
+      // Find all ETH deposit events and push them into the messages array.
+      const ethDepositEvents =
+        await this.contracts.l1.L1StandardBridge.queryFilter(
+          this.contracts.l1.L1StandardBridge.filters.ETHDepositInitiated(
+            address
+          ),
+          opts.fromBlock,
+          opts.toBlock
+        )
+      for (const event of ethDepositEvents) {
+        messages.push(parseTokenEvent(event, MessageDirection.L1_TO_L2))
+      }
+
+      // Send an event query for every L1 bridge, this will return an array of arrays.
+      const erc20DepositEventSets = await Promise.all(
+        [
+          this.contracts.l1.L1StandardBridge,
+          ...Object.values(this.bridges.l1),
+        ].map(async (bridge) => {
+          return bridge.queryFilter(
+            bridge.filters.ERC20DepositInitiated(undefined, undefined, address),
+            opts.fromBlock,
+            opts.toBlock
+          )
+        })
+      )
+
+      for (const erc20DepositEvents of erc20DepositEventSets) {
+        for (const event of erc20DepositEvents) {
+          messages.push(parseTokenEvent(event, MessageDirection.L1_TO_L2))
+        }
+      }
+    }
+
+    // Next find all messages in the L2 to L1 direction.
+    if (
+      opts.direction === undefined ||
+      opts.direction === MessageDirection.L2_TO_L1
+    ) {
+      // ETH withdrawals and ERC20 withdrawals are the same event on L2.
+      // Send an event query for every L2 bridge, this will return an array of arrays.
+      const withdrawalEventSets = await Promise.all(
+        [
+          this.contracts.l2.L2StandardBridge,
+          ...Object.values(this.bridges.l2),
+        ].map(async (bridge) => {
+          return bridge.queryFilter(
+            bridge.filters.WithdrawalInitiated(undefined, undefined, address),
+            opts.fromBlock,
+            opts.toBlock
+          )
+        })
+      )
+
+      for (const withdrawalEvents of withdrawalEventSets) {
+        for (const event of withdrawalEvents) {
+          messages.push(parseTokenEvent(event, MessageDirection.L2_TO_L1))
+        }
+      }
+    }
+
+    return messages
+  }
+
+  public async getDepositsByAddress(
+    address: AddressLike,
+    opts: {
+      fromBlock?: BlockTag
+      toBlock?: BlockTag
+    } = {}
+  ): Promise<TokenBridgeMessage[]> {
+    return this.getTokenBridgeMessagesByAddress(address, {
+      ...opts,
+      direction: MessageDirection.L1_TO_L2,
+    })
+  }
+
+  public async getWithdrawalsByAddress(
+    address: AddressLike,
+    opts: {
+      fromBlock?: BlockTag
+      toBlock?: BlockTag
+    } = {}
+  ): Promise<TokenBridgeMessage[]> {
+    return this.getTokenBridgeMessagesByAddress(address, {
+      ...opts,
+      direction: MessageDirection.L2_TO_L1,
+    })
+  }
+
+  public async getMessageStatus(message: MessageLike): Promise<MessageStatus> {
+    throw new Error('Not implemented')
+  }
+
+  public async getMessageReceipt(
+    message: MessageLike
+  ): Promise<MessageReceipt> {
+    throw new Error('Not implemented')
+  }
+
+  public async waitForMessageReciept(
+    message: MessageLike,
+    opts?: {
+      confirmations?: number
+      pollIntervalMs?: number
+      timeoutMs?: number
+    }
+  ): Promise<MessageReceipt> {
+    throw new Error('Not implemented')
+  }
+
+  public async estimateL2MessageGasLimit(
+    message: MessageLike
+  ): Promise<BigNumber> {
+    throw new Error('Not implemented')
+  }
+
+  public async estimateMessageWaitTimeSeconds(
+    message: MessageLike
+  ): Promise<number> {
+    throw new Error('Not implemented')
+  }
+
+  public async estimateMessageWaitTimeBlocks(
+    message: MessageLike
+  ): Promise<number> {
+    throw new Error('Not implemented')
+  }
+}

packages/sdk/src/index.ts

 export * from './interfaces'
 export * from './utils'
+export * from './cross-chain-provider'

packages/sdk/src/interfaces/cross-chain-provider.ts

@@ -11,6 +11,7 @@ import {
   TokenBridgeMessage,
   OEContracts,
   MessageReceipt,
+  CustomBridges,
 } from './types'
 
 /**
@@ -34,14 +35,14 @@ export interface ICrossChainProvider {
   l1ChainId: number
 
   /**
-   * Chain ID for the L2 network.
+   * Contract objects attached to their respective providers and addresses.
    */
-  l2ChainId: number
+  contracts: OEContracts
 
   /**
-   * Contract objects attached to their respective providers and addresses.
+   * List of custom bridges for the given network.
    */
-  contracts: OEContracts
+  bridges: CustomBridges
 
   /**
    * Retrieves all cross chain messages sent within a given transaction.
@@ -85,7 +86,7 @@ export interface ICrossChainProvider {
   /**
    * Finds all cross chain messages that correspond to token deposits or withdrawals sent by a
    * particular address. Useful for finding deposits/withdrawals because the sender of the message
-   * will appear to be the StandardBridge contract and not the actual end user. Returns
+   * will appear to be the StandardBridge contract and not the actual end user.
    *
    * @param address Address to search for messages from.
    * @param opts Options object.
@@ -106,6 +107,44 @@ export interface ICrossChainProvider {
     }
   ): Promise<TokenBridgeMessage[]>
 
+  /**
+   * Alias for getTokenBridgeMessagesByAddress with a drection of L1_TO_L2.
+   *
+   * @param address Address to search for messages from.
+   * @param opts Options object.
+   * @param opts.fromBlock Block to start searching for messages from. If not provided, will start
+   * from the first block (block #0).
+   * @param opts.toBlock Block to stop searching for messages at. If not provided, will stop at the
+   * latest known block ("latest").
+   * @returns All deposit token bridge messages sent by the given address.
+   */
+  getDepositsByAddress(
+    address: AddressLike,
+    opts?: {
+      fromBlock?: BlockTag
+      toBlock?: BlockTag
+    }
+  ): Promise<TokenBridgeMessage[]>
+
+  /**
+   * Alias for getTokenBridgeMessagesByAddress with a drection of L2_TO_L1.
+   *
+   * @param address Address to search for messages from.
+   * @param opts Options object.
+   * @param opts.fromBlock Block to start searching for messages from. If not provided, will start
+   * from the first block (block #0).
+   * @param opts.toBlock Block to stop searching for messages at. If not provided, will stop at the
+   * latest known block ("latest").
+   * @returns All withdrawal token bridge messages sent by the given address.
+   */
+  getWithdrawalsByAddress(
+    address: AddressLike,
+    opts?: {
+      fromBlock?: BlockTag
+      toBlock?: BlockTag
+    }
+  ): Promise<TokenBridgeMessage[]>
+
   /**
    * Retrieves the status of a particular message as an enum.
    *
@@ -129,9 +168,9 @@ export interface ICrossChainProvider {
    *
    * @param message Message to wait for.
    * @param opts Options to pass to the waiting function.
-   * - `confirmations` (number): Number of transaction confirmations to wait for before returning.
-   * - `pollIntervalMs` (number): Number of milliseconds to wait between polling for the receipt.
-   * - `loopsBeforeTimeout` (number): Number of times to poll before timing out.
+   * @param opts.confirmations Number of transaction confirmations to wait for before returning.
+   * @param opts.pollIntervalMs Number of milliseconds to wait between polling for the receipt.
+   * @param opts.timeoutMs Milliseconds to wait before timing out.
    * @returns CrossChainMessage receipt including receipt of the transaction that relayed the
    * given message.
    */
@@ -140,20 +179,18 @@ export interface ICrossChainProvider {
     opts?: {
       confirmations?: number
       pollIntervalMs?: number
-      loopsBeforeTimeout?: number
+      timeoutMs?: number
     }
   ): Promise<MessageReceipt>
 
   /**
-   * Estimates the amount of gas required to fully execute a given message. Behavior of this
-   * function depends on the direction of the message. If the message is an L1 to L2 message,
-   * then this will estimate the amount of gas required to execute the message on L2. If the
-   * message is an L2 to L1 message, then this estimate will also include the amount of gas
-   * required to execute the Merkle Patricia Trie proof on L1.
+   * Estimates the amount of gas required to fully execute a given message on L2. Only applies to
+   * L1 => L2 messages. You would supply this gas limit when sending the message to L2.
    *
    * @param message Message get a gas estimate for.
+   * @returns Estimates L2 gas limit.
    */
-  estimateMessageExecutionGas(message: MessageLike): Promise<BigNumber>
+  estimateL2MessageGasLimit(message: MessageLike): Promise<BigNumber>
 
   /**
    * Returns the estimated amount of time before the message can be executed. When this is a

packages/sdk/src/interfaces/types.ts

@@ -7,26 +7,21 @@ import { Signer } from '@ethersproject/abstract-signer'
 import { Contract, BigNumber, Overrides } from 'ethers'
 
 /**
- * Represents Optimistic Ethereum contracts, assumed to be connected to their appropriate
- * providers and addresses.
- */
-export interface OEContracts {
-  /**
  * L1 contract references.
  */
-  l1: {
+export interface OEL1Contracts {
   AddressManager: Contract
   L1CrossDomainMessenger: Contract
   L1StandardBridge: Contract
   StateCommitmentChain: Contract
   CanonicalTransactionChain: Contract
   BondManager: Contract
-  }
+}
 
-  /**
+/**
  * L2 contract references.
  */
-  l2: {
+export interface OEL2Contracts {
   L2CrossDomainMessenger: Contract
   L2StandardBridge: Contract
   OVM_L1BlockNumber: Contract
@@ -36,6 +31,63 @@ export interface OEContracts {
   OVM_GasPriceOracle: Contract
   OVM_SequencerFeeVault: Contract
   WETH: Contract
+}
+
+/**
+ * Represents Optimistic Ethereum contracts, assumed to be connected to their appropriate
+ * providers and addresses.
+ */
+export interface OEContracts {
+  l1: OEL1Contracts
+  l2: OEL2Contracts
+}
+
+/**
+ * Convenience type for something that looks like the L1 OE contract interface but could be
+ * addresses instead of actual contract objects.
+ */
+export type OEL1ContractsLike = {
+  [K in keyof OEL1Contracts]: AddressLike
+}
+
+/**
+ * Convenience type for something that looks like the L2 OE contract interface but could be
+ * addresses instead of actual contract objects.
+ */
+export type OEL2ContractsLike = {
+  [K in keyof OEL2Contracts]: AddressLike
+}
+
+/**
+ * Convenience type for something that looks like the OE contract interface but could be
+ * addresses instead of actual contract objects.
+ */
+export interface OEContractsLike {
+  l1: OEL1ContractsLike
+  l2: OEL2ContractsLike
+}
+
+/**
+ * Represents list of custom bridges.
+ */
+export interface CustomBridges {
+  l1: {
+    [name: string]: Contract
+  }
+  l2: {
+    [name: string]: Contract
+  }
+}
+
+/**
+ * Something that looks like the list of custom bridges.
+ */
+export interface CustomBridgesLike {
+  l1: {
+    [K in keyof CustomBridges['l1']]: AddressLike
+  }
+  l2: {
+    [K in keyof CustomBridges['l2']]: AddressLike
   }
 }
 
@@ -95,11 +147,9 @@ export interface CrossChainMessageRequest {
 }
 
 /**
- * Describes a message that is sent between L1 and L2. Direction determines where the message was
- * sent from and where it's being sent to.
+ * Core components of a cross chain message.
  */
-export interface CrossChainMessage {
-  direction: MessageDirection
+export interface CoreCrossChainMessage {
   sender: string
   target: string
   message: string
@@ -107,12 +157,15 @@ export interface CrossChainMessage {
 }
 
 /**
- * Convenience type for when you don't care which direction the message is going in.
+ * Describes a message that is sent between L1 and L2. Direction determines where the message was
+ * sent from and where it's being sent to.
  */
-export type DirectionlessCrossChainMessage = Omit<
-  CrossChainMessage,
-  'direction'
->
+export interface CrossChainMessage extends CoreCrossChainMessage {
+  direction: MessageDirection
+  logIndex: number
+  blockNumber: number
+  transactionHash: string
+}
 
 /**
  * Describes a token withdrawal or deposit, along with the underlying raw cross chain message
@@ -125,7 +178,10 @@ export interface TokenBridgeMessage {
   l1Token: string
   l2Token: string
   amount: BigNumber
-  raw: CrossChainMessage
+  data: string
+  logIndex: number
+  blockNumber: number
+  transactionHash: string
 }
 
 /**
@@ -164,13 +220,6 @@ export interface StateRootBatch {
   stateRoots: string[]
 }
 
-/**
- * Utility type for deep partials.
- */
-export type DeepPartial<T> = {
-  [P in keyof T]?: DeepPartial<T[P]>
-}
-
 /**
  * Extended Ethers overrides object with an l2GasLimit field.
  * Only meant to be used for L1 to L2 messages, since L2 to L1 messages don't have a specified gas

packages/sdk/src/utils.ts → packages/sdk/src/utils/coercion.ts

@@ -4,46 +4,13 @@ import {
   TransactionReceipt,
   TransactionResponse,
 } from '@ethersproject/abstract-provider'
-import { getContractInterface } from '@eth-optimism/contracts'
-import { ethers } from 'ethers'
+import { ethers, BigNumber } from 'ethers'
 import {
   ProviderLike,
   TransactionLike,
-  DirectionlessCrossChainMessage,
-} from './interfaces'
-
-/**
- * Returns the canonical encoding of a cross chain message. This encoding is used in various
- * locations within the Optimistic Ethereum smart contracts.
- *
- * @param message Cross chain message to encode.
- * @returns Canonical encoding of the message.
- */
-export const encodeCrossChainMessage = (
-  message: DirectionlessCrossChainMessage
-): string => {
-  return getContractInterface('L2CrossDomainMessenger').encodeFunctionData(
-    'relayMessage',
-    [message.target, message.sender, message.message, message.messageNonce]
-  )
-}
-
-/**
- * Returns the canonical hash of a cross chain message. This hash is used in various locations
- * within the Optimistic Ethereum smart contracts and is the keccak256 hash of the result of
- * encodeCrossChainMessage.
- *
- * @param message Cross chain message to hash.
- * @returns Canonical hash of the message.
- */
-export const hashCrossChainMessage = (
-  message: DirectionlessCrossChainMessage
-): string => {
-  return ethers.utils.solidityKeccak256(
-    ['bytes'],
-    [encodeCrossChainMessage(message)]
-  )
-}
+  NumberLike,
+  AddressLike,
+} from '../interfaces'
 
 /**
  * Converts a ProviderLike into a provider. Assumes that if the ProviderLike is a string then
@@ -84,3 +51,29 @@ export const toTransactionHash = (transaction: TransactionLike): string => {
     throw new Error('Invalid transaction')
   }
 }
+
+/**
+ * Converts a number-like into an ethers BigNumber.
+ *
+ * @param num Number-like to convert into a BigNumber.
+ * @returns Number-like as a BigNumber.
+ */
+export const toBigNumber = (num: NumberLike): BigNumber => {
+  return ethers.BigNumber.from(num)
+}
+
+/**
+ * Converts an address-like into a 0x-prefixed address string.
+ *
+ * @param addr Address-like to convert into an address.
+ * @returns Address-like as an address.
+ */
+export const toAddress = (addr: AddressLike): string => {
+  if (typeof addr === 'string') {
+    assert(ethers.utils.isAddress(addr), 'Invalid address')
+    return ethers.utils.getAddress(addr)
+  } else {
+    assert(ethers.utils.isAddress(addr.address), 'Invalid address')
+    return ethers.utils.getAddress(addr.address)
+  }
+}

packages/sdk/src/utils/contracts.ts

+import { getContractInterface, predeploys } from '@eth-optimism/contracts'
+import { ethers, Contract } from 'ethers'
+import {
+  OEContracts,
+  OEL1Contracts,
+  OEL2Contracts,
+  OEContractsLike,
+  OEL2ContractsLike,
+  AddressLike,
+  CustomBridges,
+  CustomBridgesLike,
+} from '../interfaces'
+import { toAddress } from './coercion'
+import { DeepPartial } from './type-utils'
+
+/**
+ * Full list of default L2 contract addresses.
+ */
+export const DEFAULT_L2_CONTRACT_ADDRESSES: OEL2ContractsLike = {
+  L2CrossDomainMessenger: predeploys.L2CrossDomainMessenger,
+  L2StandardBridge: predeploys.L2StandardBridge,
+  OVM_L1BlockNumber: predeploys.OVM_L1BlockNumber,
+  OVM_L2ToL1MessagePasser: predeploys.OVM_L2ToL1MessagePasser,
+  OVM_DeployerWhitelist: predeploys.OVM_DeployerWhitelist,
+  OVM_ETH: predeploys.OVM_ETH,
+  OVM_GasPriceOracle: predeploys.OVM_GasPriceOracle,
+  OVM_SequencerFeeVault: predeploys.OVM_SequencerFeeVault,
+  WETH: predeploys.WETH9,
+}
+
+/**
+ * We've changed some contract names in this SDK to be a bit nicer. Here we remap these nicer names
+ * back to the original contract names so we can look them up.
+ */
+const NAME_REMAPPING = {
+  AddressManager: 'Lib_AddressManager',
+  OVM_L1BlockNumber: 'iOVM_L1BlockNumber',
+  WETH: 'WETH9',
+}
+
+/**
+ * Mapping of L1 chain IDs to the list of custom bridge addresses for each chain.
+ */
+export const CUSTOM_BRIDGE_ADDRESSES: {
+  [l1ChainId: number]: CustomBridgesLike
+} = {
+  // TODO: Maybe we can pull these automatically from the token list?
+  // Alternatively, check against the token list in CI.
+  1: {
+    l1: {
+      SNX: '0xCd9D4988C0AE61887B075bA77f08cbFAd2b65068',
+      DAI: '0x10E6593CDda8c58a1d0f14C5164B376352a55f2F',
+      BitBTC: '0xaBA2c5F108F7E820C049D5Af70B16ac266c8f128',
+    },
+    l2: {
+      SNX: '0x3f87Ff1de58128eF8FCb4c807eFD776E1aC72E51',
+      DAI: '0x467194771dAe2967Aef3ECbEDD3Bf9a310C76C65',
+      BitBTC: '0x158F513096923fF2d3aab2BcF4478536de6725e2',
+    },
+  },
+  42: {
+    l1: {
+      SNX: '0xD134Db47DDF5A6feB245452af17cCAf92ee53D3c',
+      DAI: '0xb415e822C4983ecD6B1c1596e8a5f976cf6CD9e3',
+      BitBTC: '0x0b651A42F32069d62d5ECf4f2a7e5Bd3E9438746',
+      USX: '0x40E862341b2416345F02c41Ac70df08525150dC7',
+    },
+    l2: {
+      SNX: '0x5C3f51CEd0C2F6157e2be67c029264D6C44bfe42',
+      DAI: '0x467194771dAe2967Aef3ECbEDD3Bf9a310C76C65',
+      BitBTC: '0x0CFb46528a7002a7D8877a5F7a69b9AaF1A9058e',
+      USX: '0xB4d37826b14Cd3CB7257A2A5094507d701fe715f',
+    },
+  },
+}
+
+/**
+ * Mapping of L1 chain IDs to the appropriate contract addresses for the OE deployments to the
+ * given network. Simplifies the process of getting the correct contract addresses for a given
+ * contract name.
+ */
+export const CONTRACT_ADDRESSES: {
+  [l1ChainId: number]: OEContractsLike
+} = {
+  // Mainnet
+  1: {
+    l1: {
+      AddressManager: '0xdE1FCfB0851916CA5101820A69b13a4E276bd81F',
+      L1CrossDomainMessenger: '0x25ace71c97B33Cc4729CF772ae268934F7ab5fA1',
+      L1StandardBridge: '0x99C9fc46f92E8a1c0deC1b1747d010903E884bE1',
+      StateCommitmentChain: '0xBe5dAb4A2e9cd0F27300dB4aB94BeE3A233AEB19',
+      CanonicalTransactionChain: '0x5E4e65926BA27467555EB562121fac00D24E9dD2',
+      BondManager: '0xcd626E1328b41fCF24737F137BcD4CE0c32bc8d1',
+    },
+    l2: DEFAULT_L2_CONTRACT_ADDRESSES,
+  },
+  // Kovan
+  42: {
+    l1: {
+      AddressManager: '0x100Dd3b414Df5BbA2B542864fF94aF8024aFdf3a',
+      L1CrossDomainMessenger: '0x4361d0F75A0186C05f971c566dC6bEa5957483fD',
+      L1StandardBridge: '0x22F24361D548e5FaAfb36d1437839f080363982B',
+      StateCommitmentChain: '0xD7754711773489F31A0602635f3F167826ce53C5',
+      CanonicalTransactionChain: '0xf7B88A133202d41Fe5E2Ab22e6309a1A4D50AF74',
+      BondManager: '0xc5a603d273E28185c18Ba4d26A0024B2d2F42740',
+    },
+    l2: DEFAULT_L2_CONTRACT_ADDRESSES,
+  },
+  // Goerli
+  5: {
+    l1: {
+      AddressManager: '0x2F7E3cAC91b5148d336BbffB224B4dC79F09f01D',
+      L1CrossDomainMessenger: '0xEcC89b9EDD804850C4F343A278Be902be11AaF42',
+      L1StandardBridge: '0x73298186A143a54c20ae98EEE5a025bD5979De02',
+      StateCommitmentChain: '0x1afcA918eff169eE20fF8AB6Be75f3E872eE1C1A',
+      CanonicalTransactionChain: '0x2ebA8c4EfDB39A8Cd8f9eD65c50ec079f7CEBD81',
+      BondManager: '0xE5AE60bD6F8DEe4D0c2BC9268e23B92F1cacC58F',
+    },
+    l2: DEFAULT_L2_CONTRACT_ADDRESSES,
+  },
+  // Hardhat local
+  // TODO: Get the actual addresses for this, temporary addresses here are fine for now until we
+  // start using this package in the integration tests.
+  31337: {
+    l1: {
+      AddressManager: '0x2F7E3cAC91b5148d336BbffB224B4dC79F09f01D',
+      L1CrossDomainMessenger: '0xEcC89b9EDD804850C4F343A278Be902be11AaF42',
+      L1StandardBridge: '0x73298186A143a54c20ae98EEE5a025bD5979De02',
+      StateCommitmentChain: '0x1afcA918eff169eE20fF8AB6Be75f3E872eE1C1A',
+      CanonicalTransactionChain: '0x2ebA8c4EfDB39A8Cd8f9eD65c50ec079f7CEBD81',
+      BondManager: '0xE5AE60bD6F8DEe4D0c2BC9268e23B92F1cacC58F',
+    },
+    l2: DEFAULT_L2_CONTRACT_ADDRESSES,
+  },
+}
+
+/**
+ * Returns an ethers.Contract object for the given name, connected to the appropriate address for
+ * the given L1 chain ID. Users can also provide a custom address to connect the contract to
+ * instead. If the chain ID is not known then the user MUST provide a custom address or this
+ * function will throw an error.
+ *
+ * @param contractName Name of the contract to connect to.
+ * @param l1ChainId Chain ID for the L1 network where the OE contracts are deployed.
+ * @param opts Additional options for connecting to the contract.
+ * @param opts.address Custom address to connect to the contract.
+ * @param opts.signerOrProvider Signer or provider to connect to the contract.
+ * @returns An ethers.Contract object connected to the appropriate address and interface.
+ */
+export const getOEContract = (
+  contractName: keyof OEL1Contracts | keyof OEL2Contracts,
+  l1ChainId: number,
+  opts: {
+    address?: AddressLike
+    signerOrProvider?: ethers.Signer | ethers.providers.Provider
+  } = {}
+): Contract => {
+  const addresses = CONTRACT_ADDRESSES[l1ChainId]
+  if (addresses === undefined && opts.address === undefined) {
+    throw new Error(
+      `cannot get contract ${contractName} for unknown L1 chain ID ${l1ChainId}, you must provide an address`
+    )
+  }
+
+  return new Contract(
+    toAddress(
+      opts.address || addresses.l1[contractName] || addresses.l2[contractName]
+    ),
+    getContractInterface(NAME_REMAPPING[contractName] || contractName),
+    opts.signerOrProvider
+  )
+}
+
+/**
+ * Automatically connects to all contract addresses, both L1 and L2, for the given L1 chain ID. The
+ * user can provide custom contract address overrides for L1 or L2 contracts. If the given chain ID
+ * is not known then the user MUST provide custom contract addresses for ALL L1 contracts or this
+ * function will throw an error.
+ *
+ * @param l1ChainId Chain ID for the L1 network where the OE contracts are deployed.
+ * @param opts Additional options for connecting to the contracts.
+ * @param opts.l1SignerOrProvider: Signer or provider to connect to the L1 contracts.
+ * @param opts.l2SignerOrProvider: Signer or provider to connect to the L2 contracts.
+ * @param opts.overrides Custom contract address overrides for L1 or L2 contracts.
+ * @returns An object containing ethers.Contract objects connected to the appropriate addresses on
+ * both L1 and L2.
+ */
+export const getAllOEContracts = (
+  l1ChainId: number,
+  opts: {
+    l1SignerOrProvider?: ethers.Signer | ethers.providers.Provider
+    l2SignerOrProvider?: ethers.Signer | ethers.providers.Provider
+    overrides?: DeepPartial<OEContractsLike>
+  } = {}
+): OEContracts => {
+  const addresses = CONTRACT_ADDRESSES[l1ChainId] || {
+    l1: {
+      AddressManager: undefined,
+      L1CrossDomainMessenger: undefined,
+      L1StandardBridge: undefined,
+      StateCommitmentChain: undefined,
+      CanonicalTransactionChain: undefined,
+      BondManager: undefined,
+    },
+    l2: DEFAULT_L2_CONTRACT_ADDRESSES,
+  }
+
+  // Attach all L1 contracts.
+  const l1Contracts: OEL1Contracts = {} as any
+  for (const [contractName, contractAddress] of Object.entries(addresses.l1)) {
+    l1Contracts[contractName] = getOEContract(contractName as any, l1ChainId, {
+      address: opts.overrides?.l1?.[contractName] || contractAddress,
+      signerOrProvider: opts.l1SignerOrProvider,
+    })
+  }
+
+  // Attach all L2 contracts.
+  const l2Contracts: OEL2Contracts = {} as any
+  for (const [contractName, contractAddress] of Object.entries(addresses.l2)) {
+    l2Contracts[contractName] = getOEContract(contractName as any, l1ChainId, {
+      address: opts.overrides?.l2?.[contractName] || contractAddress,
+      signerOrProvider: opts.l2SignerOrProvider,
+    })
+  }
+
+  return {
+    l1: l1Contracts,
+    l2: l2Contracts,
+  }
+}
+
+/**
+ * Gets a series of custom bridges for the given L1 chain ID.
+ *
+ * @param l1ChainId L1 chain ID for the L1 network where the custom bridges are deployed.
+ * @param opts Additional options for connecting to the custom bridges.
+ * @param opts.l1SignerOrProvider Signer or provider to connect to the L1 contracts.
+ * @param opts.l2SignerOrProvider Signer or provider to connect to the L2 contracts.
+ * @param opts.overrides Custom contract address overrides for L1 or L2 contracts.
+ * @returns An object containing ethers.Contract objects connected to the appropriate addresses on
+ * both L1 and L2.
+ */
+export const getCustomBridges = (
+  l1ChainId: number,
+  opts: {
+    l1SignerOrProvider?: ethers.Signer | ethers.providers.Provider
+    l2SignerOrProvider?: ethers.Signer | ethers.providers.Provider
+    overrides?: Partial<CustomBridgesLike>
+  } = {}
+): CustomBridges => {
+  const addresses = CUSTOM_BRIDGE_ADDRESSES[l1ChainId] || {
+    l1: {},
+    l2: {},
+  }
+  for (const [contractName, contractAddress] of Object.entries(
+    opts.overrides?.l1 || {}
+  )) {
+    addresses.l1[contractName] = contractAddress
+  }
+  for (const [contractName, contractAddress] of Object.entries(
+    opts.overrides?.l2 || {}
+  )) {
+    addresses.l2[contractName] = contractAddress
+  }
+
+  const bridges = {
+    l1: {},
+    l2: {},
+  }
+  for (const [contractName, contractAddress] of Object.entries(addresses.l1)) {
+    bridges.l1[contractName] = new Contract(
+      toAddress(contractAddress),
+      getContractInterface('IL1ERC20Bridge'),
+      opts.l1SignerOrProvider
+    )
+  }
+  for (const [contractName, contractAddress] of Object.entries(addresses.l2)) {
+    bridges.l2[contractName] = new Contract(
+      toAddress(contractAddress),
+      getContractInterface('IL2ERC20Bridge'),
+      opts.l2SignerOrProvider
+    )
+  }
+
+  return bridges
+}

packages/sdk/src/utils/index.ts

+export * from './coercion'
+export * from './contracts'
+export * from './message-encoding'
+export * from './type-utils'

packages/sdk/src/utils/message-encoding.ts

+import { getContractInterface } from '@eth-optimism/contracts'
+import { ethers } from 'ethers'
+import { CoreCrossChainMessage } from '../interfaces'
+
+/**
+ * Returns the canonical encoding of a cross chain message. This encoding is used in various
+ * locations within the Optimistic Ethereum smart contracts.
+ *
+ * @param message Cross chain message to encode.
+ * @returns Canonical encoding of the message.
+ */
+export const encodeCrossChainMessage = (
+  message: CoreCrossChainMessage
+): string => {
+  return getContractInterface('L2CrossDomainMessenger').encodeFunctionData(
+    'relayMessage',
+    [message.target, message.sender, message.message, message.messageNonce]
+  )
+}
+
+/**
+ * Returns the canonical hash of a cross chain message. This hash is used in various locations
+ * within the Optimistic Ethereum smart contracts and is the keccak256 hash of the result of
+ * encodeCrossChainMessage.
+ *
+ * @param message Cross chain message to hash.
+ * @returns Canonical hash of the message.
+ */
+export const hashCrossChainMessage = (
+  message: CoreCrossChainMessage
+): string => {
+  return ethers.utils.solidityKeccak256(
+    ['bytes'],
+    [encodeCrossChainMessage(message)]
+  )
+}

packages/sdk/src/utils/type-utils.ts

+/**
+ * Utility type for deep partials.
+ */
+export type DeepPartial<T> = {
+  [P in keyof T]?: DeepPartial<T[P]>
+}

packages/sdk/test/contracts/ICrossDomainMessenger.sol

+pragma solidity ^0.8.9;
+
+// Right now this is copy/pasted from the contracts package. We need to do this because we don't
+// currently copy the contracts into the root of the contracts package in the correct way until
+// we bundle the contracts package for publication. As a result, we can't properly use the
+// package the way we want to from inside the monorepo (yet). Needs to be fixed as part of a
+// separate pull request.
+
+interface ICrossDomainMessenger {
+    /**********
+     * Events *
+     **********/
+
+    event SentMessage(
+        address indexed target,
+        address sender,
+        bytes message,
+        uint256 messageNonce,
+        uint256 gasLimit
+    );
+    event RelayedMessage(bytes32 indexed msgHash);
+    event FailedRelayedMessage(bytes32 indexed msgHash);
+
+    /*************
+     * Variables *
+     *************/
+
+    function xDomainMessageSender() external view returns (address);
+
+    /********************
+     * Public Functions *
+     ********************/
+
+    /**
+     * Sends a cross domain message to the target messenger.
+     * @param _target Target contract address.
+     * @param _message Message to send to the target.
+     * @param _gasLimit Gas limit for the provided message.
+     */
+    function sendMessage(
+        address _target,
+        bytes calldata _message,
+        uint32 _gasLimit
+    ) external;
+}

packages/sdk/test/contracts/MockBridge.sol

+pragma solidity ^0.8.9;
+
+import { MockMessenger } from "./MockMessenger.sol";
+
+contract MockBridge {
+    event ERC20DepositInitiated(
+        address indexed _l1Token,
+        address indexed _l2Token,
+        address indexed _from,
+        address _to,
+        uint256 _amount,
+        bytes _data
+    );
+
+    event ERC20WithdrawalFinalized(
+        address indexed _l1Token,
+        address indexed _l2Token,
+        address indexed _from,
+        address _to,
+        uint256 _amount,
+        bytes _data
+    );
+
+    event WithdrawalInitiated(
+        address indexed _l1Token,
+        address indexed _l2Token,
+        address indexed _from,
+        address _to,
+        uint256 _amount,
+        bytes _data
+    );
+
+    event DepositFinalized(
+        address indexed _l1Token,
+        address indexed _l2Token,
+        address indexed _from,
+        address _to,
+        uint256 _amount,
+        bytes _data
+    );
+
+    event DepositFailed(
+        address indexed _l1Token,
+        address indexed _l2Token,
+        address indexed _from,
+        address _to,
+        uint256 _amount,
+        bytes _data
+    );
+
+    struct TokenEventStruct {
+        address l1Token;
+        address l2Token;
+        address from;
+        address to;
+        uint256 amount;
+        bytes data;
+    }
+
+    MockMessenger public messenger;
+
+    constructor(MockMessenger _messenger) {
+        messenger = _messenger;
+    }
+
+    function emitERC20DepositInitiated(
+        TokenEventStruct memory _params
+    ) public {
+        emit ERC20DepositInitiated(_params.l1Token, _params.l2Token, _params.from, _params.to, _params.amount, _params.data);
+        messenger.triggerSentMessageEvent(
+            MockMessenger.SentMessageEventParams(
+                address(0),
+                address(0),
+                hex"1234",
+                1234,
+                12345678
+            )
+        );
+    }
+
+    function emitERC20WithdrawalFinalized(
+        TokenEventStruct memory _params
+    ) public {
+        emit ERC20WithdrawalFinalized(_params.l1Token, _params.l2Token, _params.from, _params.to, _params.amount, _params.data);
+    }
+
+    function emitWithdrawalInitiated(
+        TokenEventStruct memory _params
+    ) public {
+        emit WithdrawalInitiated(_params.l1Token, _params.l2Token, _params.from, _params.to, _params.amount, _params.data);
+        messenger.triggerSentMessageEvent(
+            MockMessenger.SentMessageEventParams(
+                address(0),
+                address(0),
+                hex"1234",
+                1234,
+                12345678
+            )
+        );
+    }
+
+    function emitDepositFinalized(
+        TokenEventStruct memory _params
+    ) public {
+        emit DepositFinalized(_params.l1Token, _params.l2Token, _params.from, _params.to, _params.amount, _params.data);
+    }
+
+    function emitDepositFailed(
+        TokenEventStruct memory _params
+    ) public {
+        emit DepositFailed(_params.l1Token, _params.l2Token, _params.from, _params.to, _params.amount, _params.data);
+    }
+}

packages/sdk/test/contracts/MockMessenger.sol

+pragma solidity ^0.8.9;
+
+import { ICrossDomainMessenger } from "./ICrossDomainMessenger.sol";
+
+contract MockMessenger is ICrossDomainMessenger {
+    function xDomainMessageSender() public view returns (address) {
+        return address(0);
+    }
+
+    // Empty function to satisfy the interface.
+    function sendMessage(
+        address _target,
+        bytes calldata _message,
+        uint32 _gasLimit
+    ) public {
+        return;
+    }
+
+    struct SentMessageEventParams {
+        address target;
+        address sender;
+        bytes message;
+        uint256 messageNonce;
+        uint256 gasLimit;
+    }
+
+    function doNothing() public {
+        return;
+    }
+
+    function triggerSentMessageEvent(
+        SentMessageEventParams memory _params
+    ) public {
+        emit SentMessage(
+            _params.target,
+            _params.sender,
+            _params.message,
+            _params.messageNonce,
+            _params.gasLimit
+        );
+    }
+
+    function triggerSentMessageEvents(
+        SentMessageEventParams[] memory _params
+    ) public {
+        for (uint256 i = 0; i < _params.length; i++) {
+            triggerSentMessageEvent(_params[i]);
+        }
+    }
+
+    function triggerRelayedMessageEvents(
+        bytes32[] memory _params
+    ) public {
+        for (uint256 i = 0; i < _params.length; i++) {
+            emit RelayedMessage(_params[i]);
+        }
+    }
+
+    function triggerFailedRelayedMessageEvents(
+        bytes32[] memory _params
+    ) public {
+        for (uint256 i = 0; i < _params.length; i++) {
+            emit FailedRelayedMessage(_params[i]);
+        }
+    }
+}

packages/sdk/test/cross-chain-erc20-pair.spec.ts

+/* eslint-disable @typescript-eslint/no-empty-function */
+import './setup'
+
+describe('CrossChainERC20Pair', () => {
+  describe('construction', () => {
+    it('should have a messenger', () => {})
+
+    describe('when the token is a standard bridge token', () => {
+      it('should resolve the correct bridge', () => {})
+    })
+
+    describe('when the token is SNX', () => {
+      it('should resolve the correct bridge', () => {})
+    })
+
+    describe('when the token is DAI', () => {
+      it('should resolve the correct bridge', () => {})
+    })
+
+    describe('when a custom adapter is provided', () => {
+      it('should use the custom adapter', () => {})
+    })
+  })
+
+  describe('deposit', () => {
+    describe('when the user has enough balance and allowance', () => {
+      describe('when the token is a standard bridge token', () => {
+        it('should trigger a token deposit', () => {})
+      })
+
+      describe('when the token is ETH', () => {
+        it('should trigger a token deposit', () => {})
+      })
+
+      describe('when the token is SNX', () => {
+        it('should trigger a token deposit', () => {})
+      })
+
+      describe('when the token is DAI', () => {
+        it('should trigger a token deposit', () => {})
+      })
+    })
+
+    describe('when the user does not have enough balance', () => {
+      it('should throw an error', () => {})
+    })
+
+    describe('when the user has not given enough allowance to the bridge', () => {
+      it('should throw an error', () => {})
+    })
+  })
+
+  describe('withdraw', () => {
+    describe('when the user has enough balance', () => {
+      describe('when the token is a standard bridge token', () => {
+        it('should trigger a token withdrawal', () => {})
+      })
+
+      describe('when the token is ETH', () => {
+        it('should trigger a token withdrawal', () => {})
+      })
+
+      describe('when the token is SNX', () => {
+        it('should trigger a token withdrawal', () => {})
+      })
+
+      describe('when the token is DAI', () => {
+        it('should trigger a token withdrawal', () => {})
+      })
+    })
+
+    describe('when the user does not have enough balance', () => {
+      it('should throw an error', () => {})
+    })
+  })
+
+  describe('populateTransaction', () => {
+    describe('deposit', () => {
+      it('should populate the transaction with the correct values', () => {})
+    })
+
+    describe('withdraw', () => {
+      it('should populate the transaction with the correct values', () => {})
+    })
+  })
+
+  describe('estimateGas', () => {
+    describe('deposit', () => {
+      it('should estimate gas required for the transaction', () => {})
+    })
+
+    describe('withdraw', () => {
+      it('should estimate gas required for the transaction', () => {})
+    })
+  })
+})

packages/sdk/test/cross-chain-messenger.spec.ts

@@ -32,7 +32,6 @@ describe('CrossChainMessenger', () => {
         it('should throw an error', () => {})
       })
 
-      // TODO: is this the behavior we want?
       describe('when the message has already been finalized', () => {
         it('should throw an error', () => {})
       })

packages/sdk/test/cross-chain-provider.spec.ts

 /* eslint-disable @typescript-eslint/no-empty-function */
-import './setup'
+import { expect } from './setup'
+import { Provider } from '@ethersproject/abstract-provider'
+import { Contract } from 'ethers'
+import { ethers } from 'hardhat'
+import {
+  CrossChainProvider,
+  MessageDirection,
+  CONTRACT_ADDRESSES,
+} from '../src'
 
 describe('CrossChainProvider', () => {
   describe('construction', () => {
-    describe('basic construction (given L1 and L2 providers)', () => {
-      it('should have an l1Provider', () => {})
+    describe('when given an ethers provider for the L1 provider', () => {
+      it('should use the provider as the L1 provider', () => {
+        const provider = new CrossChainProvider({
+          l1Provider: ethers.provider,
+          l2Provider: ethers.provider,
+          l1ChainId: 1,
+        })
+
+        expect(provider.l1Provider).to.equal(ethers.provider)
+      })
+    })
+
+    describe('when given an ethers provider for the L2 provider', () => {
+      it('should use the provider as the L2 provider', () => {
+        const provider = new CrossChainProvider({
+          l1Provider: ethers.provider,
+          l2Provider: ethers.provider,
+          l1ChainId: 1,
+        })
 
-      it('should have an l2Provider', () => {})
+        expect(provider.l2Provider).to.equal(ethers.provider)
+      })
+    })
+
+    describe('when given a string as the L1 provider', () => {
+      it('should create a JSON-RPC provider for the L1 provider', () => {
+        const provider = new CrossChainProvider({
+          l1Provider: 'https://localhost:8545',
+          l2Provider: ethers.provider,
+          l1ChainId: 1,
+        })
 
-      it('should have an l1ChainId', () => {})
+        expect(Provider.isProvider(provider.l1Provider)).to.be.true
+      })
+    })
+
+    describe('when given a string as the L2 provider', () => {
+      it('should create a JSON-RPC provider for the L2 provider', () => {
+        const provider = new CrossChainProvider({
+          l1Provider: ethers.provider,
+          l2Provider: 'https://localhost:8545',
+          l1ChainId: 1,
+        })
+
+        expect(Provider.isProvider(provider.l2Provider)).to.be.true
+      })
+    })
+
+    describe('when no custom contract addresses are provided', () => {
+      describe('when given a known chain ID', () => {
+        it('should use the contract addresses for the known chain ID', () => {
+          const provider = new CrossChainProvider({
+            l1Provider: ethers.provider,
+            l2Provider: 'https://localhost:8545',
+            l1ChainId: 1,
+          })
+
+          const addresses = CONTRACT_ADDRESSES[1]
+          for (const [contractName, contractAddress] of Object.entries(
+            addresses.l1
+          )) {
+            const contract = provider.contracts.l1[contractName]
+            expect(contract.address).to.equal(contractAddress)
+          }
+          for (const [contractName, contractAddress] of Object.entries(
+            addresses.l2
+          )) {
+            const contract = provider.contracts.l2[contractName]
+            expect(contract.address).to.equal(contractAddress)
+          }
+        })
+      })
+
+      describe('when given an unknown chain ID', () => {
+        it('should throw an error', () => {
+          expect(() => {
+            new CrossChainProvider({
+              l1Provider: ethers.provider,
+              l2Provider: 'https://localhost:8545',
+              l1ChainId: 1234,
+            })
+          }).to.throw()
+        })
+      })
+    })
+
+    describe('when custom contract addresses are provided', () => {
+      describe('when given a known chain ID', () => {
+        it('should use known addresses except where custom addresses are given', () => {
+          const overrides = {
+            l1: {
+              L1CrossDomainMessenger: '0x' + '11'.repeat(20),
+            },
+            l2: {
+              L2CrossDomainMessenger: '0x' + '22'.repeat(20),
+            },
+          }
+          const provider = new CrossChainProvider({
+            l1Provider: ethers.provider,
+            l2Provider: 'https://localhost:8545',
+            l1ChainId: 1,
+            contracts: overrides,
+          })
+
+          const addresses = CONTRACT_ADDRESSES[1]
+          for (const [contractName, contractAddress] of Object.entries(
+            addresses.l1
+          )) {
+            if (overrides.l1[contractName]) {
+              const contract = provider.contracts.l1[contractName]
+              expect(contract.address).to.equal(overrides.l1[contractName])
+            } else {
+              const contract = provider.contracts.l1[contractName]
+              expect(contract.address).to.equal(contractAddress)
+            }
+          }
+          for (const [contractName, contractAddress] of Object.entries(
+            addresses.l2
+          )) {
+            if (overrides.l2[contractName]) {
+              const contract = provider.contracts.l2[contractName]
+              expect(contract.address).to.equal(overrides.l2[contractName])
+            } else {
+              const contract = provider.contracts.l2[contractName]
+              expect(contract.address).to.equal(contractAddress)
+            }
+          }
+        })
+      })
 
-      it('should have an l2ChainId', () => {})
+      describe('when given an unknown chain ID', () => {
+        describe('when all L1 addresses are provided', () => {
+          it('should use custom addresses where provided', () => {
+            const overrides = {
+              l1: {
+                AddressManager: '0x' + '11'.repeat(20),
+                L1CrossDomainMessenger: '0x' + '12'.repeat(20),
+                L1StandardBridge: '0x' + '13'.repeat(20),
+                StateCommitmentChain: '0x' + '14'.repeat(20),
+                CanonicalTransactionChain: '0x' + '15'.repeat(20),
+                BondManager: '0x' + '16'.repeat(20),
+              },
+              l2: {
+                L2CrossDomainMessenger: '0x' + '22'.repeat(20),
+              },
+            }
+            const provider = new CrossChainProvider({
+              l1Provider: ethers.provider,
+              l2Provider: 'https://localhost:8545',
+              l1ChainId: 1234,
+              contracts: overrides,
+            })
+
+            const addresses = CONTRACT_ADDRESSES[1]
+            for (const [contractName, contractAddress] of Object.entries(
+              addresses.l1
+            )) {
+              if (overrides.l1[contractName]) {
+                const contract = provider.contracts.l1[contractName]
+                expect(contract.address).to.equal(overrides.l1[contractName])
+              } else {
+                const contract = provider.contracts.l1[contractName]
+                expect(contract.address).to.equal(contractAddress)
+              }
+            }
+            for (const [contractName, contractAddress] of Object.entries(
+              addresses.l2
+            )) {
+              if (overrides.l2[contractName]) {
+                const contract = provider.contracts.l2[contractName]
+                expect(contract.address).to.equal(overrides.l2[contractName])
+              } else {
+                const contract = provider.contracts.l2[contractName]
+                expect(contract.address).to.equal(contractAddress)
+              }
+            }
+          })
+        })
 
-      it('should have all contract connections', () => {})
+        describe('when not all L1 addresses are provided', () => {
+          it('should throw an error', () => {
+            expect(() => {
+              new CrossChainProvider({
+                l1Provider: ethers.provider,
+                l2Provider: 'https://localhost:8545',
+                l1ChainId: 1234,
+                contracts: {
+                  l1: {
+                    // Missing some required L1 addresses
+                    AddressManager: '0x' + '11'.repeat(20),
+                    L1CrossDomainMessenger: '0x' + '12'.repeat(20),
+                    L1StandardBridge: '0x' + '13'.repeat(20),
+                  },
+                  l2: {
+                    L2CrossDomainMessenger: '0x' + '22'.repeat(20),
+                  },
+                },
+              })
+            }).to.throw()
+          })
+        })
+      })
     })
   })
 
   describe('getMessagesByTransaction', () => {
+    let l1Messenger: Contract
+    let l2Messenger: Contract
+    let provider: CrossChainProvider
+    beforeEach(async () => {
+      l1Messenger = (await (
+        await ethers.getContractFactory('MockMessenger')
+      ).deploy()) as any
+      l2Messenger = (await (
+        await ethers.getContractFactory('MockMessenger')
+      ).deploy()) as any
+
+      provider = new CrossChainProvider({
+        l1Provider: ethers.provider,
+        l2Provider: ethers.provider,
+        l1ChainId: 31337,
+        contracts: {
+          l1: {
+            L1CrossDomainMessenger: l1Messenger.address,
+          },
+          l2: {
+            L2CrossDomainMessenger: l2Messenger.address,
+          },
+        },
+      })
+    })
+
     describe('when a direction is specified', () => {
       describe('when the transaction exists', () => {
-        describe('when thetransaction has messages', () => {
+        describe('when the transaction has messages', () => {
           for (const n of [1, 2, 4, 8]) {
-            it(`should find ${n} messages when the transaction emits ${n} messages`, () => {})
+            it(`should find ${n} messages when the transaction emits ${n} messages`, async () => {
+              const messages = [...Array(n)].map(() => {
+                return {
+                  target: '0x' + '11'.repeat(20),
+                  sender: '0x' + '22'.repeat(20),
+                  message: '0x' + '33'.repeat(64),
+                  messageNonce: 1234,
+                  gasLimit: 100000,
+                }
+              })
+
+              const tx = await l1Messenger.triggerSentMessageEvents(messages)
+              const found = await provider.getMessagesByTransaction(tx, {
+                direction: MessageDirection.L1_TO_L2,
+              })
+              expect(found).to.deep.equal(
+                messages.map((message, i) => {
+                  return {
+                    direction: MessageDirection.L1_TO_L2,
+                    sender: message.sender,
+                    target: message.target,
+                    message: message.message,
+                    messageNonce: ethers.BigNumber.from(message.messageNonce),
+                    logIndex: i,
+                    blockNumber: tx.blockNumber,
+                    transactionHash: tx.hash,
+                  }
+                })
+              )
+            })
           }
         })
 
         describe('when the transaction has no messages', () => {
-          it('should find nothing', () => {})
+          it('should find nothing', async () => {
+            const tx = await l1Messenger.doNothing()
+            const found = await provider.getMessagesByTransaction(tx, {
+              direction: MessageDirection.L1_TO_L2,
+            })
+            expect(found).to.deep.equal([])
+          })
         })
       })
 
-      describe('when the transaction does not exist', () => {
-        it('should throw an error', () => {})
+      describe('when the transaction does not exist in the specified direction', () => {
+        it('should throw an error', async () => {
+          await expect(
+            provider.getMessagesByTransaction('0x' + '11'.repeat(32), {
+              direction: MessageDirection.L1_TO_L2,
+            })
+          ).to.be.rejectedWith('unable to find transaction receipt')
+        })
       })
     })
 
@@ -39,33 +306,74 @@ describe('CrossChainProvider', () => {
       describe('when the transaction exists only on L1', () => {
         describe('when the transaction has messages', () => {
           for (const n of [1, 2, 4, 8]) {
-            it(`should find ${n} messages when the transaction emits ${n} messages`, () => {})
+            it(`should find ${n} messages when the transaction emits ${n} messages`, async () => {
+              const messages = [...Array(n)].map(() => {
+                return {
+                  target: '0x' + '11'.repeat(20),
+                  sender: '0x' + '22'.repeat(20),
+                  message: '0x' + '33'.repeat(64),
+                  messageNonce: 1234,
+                  gasLimit: 100000,
+                }
+              })
+
+              const tx = await l1Messenger.triggerSentMessageEvents(messages)
+              const found = await provider.getMessagesByTransaction(tx)
+              expect(found).to.deep.equal(
+                messages.map((message, i) => {
+                  return {
+                    direction: MessageDirection.L1_TO_L2,
+                    sender: message.sender,
+                    target: message.target,
+                    message: message.message,
+                    messageNonce: ethers.BigNumber.from(message.messageNonce),
+                    logIndex: i,
+                    blockNumber: tx.blockNumber,
+                    transactionHash: tx.hash,
+                  }
+                })
+              )
+            })
           }
         })
 
         describe('when the transaction has no messages', () => {
-          it('should find nothing', () => {})
+          it('should find nothing', async () => {
+            const tx = await l1Messenger.doNothing()
+            const found = await provider.getMessagesByTransaction(tx)
+            expect(found).to.deep.equal([])
+          })
         })
       })
 
       describe('when the transaction exists only on L2', () => {
         describe('when the transaction has messages', () => {
           for (const n of [1, 2, 4, 8]) {
-            it(`should find ${n} messages when the transaction emits ${n} messages`, () => {})
+            it(`should find ${n} messages when the transaction emits ${n} messages`, () => {
+              // TODO: Need support for simulating more than one network.
+            })
           }
         })
 
         describe('when the transaction has no messages', () => {
-          it('should find nothing', () => {})
+          it('should find nothing', () => {
+            // TODO: Need support for simulating more than one network.
+          })
         })
       })
 
       describe('when the transaction does not exist', () => {
-        it('should throw an error', () => {})
+        it('should throw an error', async () => {
+          await expect(
+            provider.getMessagesByTransaction('0x' + '11'.repeat(32))
+          ).to.be.rejectedWith('unable to find transaction receipt')
+        })
       })
 
       describe('when the transaction exists on both L1 and L2', () => {
-        it('should throw an error', () => {})
+        it('should throw an error', async () => {
+          // TODO: Need support for simulating more than one network.
+        })
       })
     })
   })
@@ -95,26 +403,244 @@ describe('CrossChainProvider', () => {
   })
 
   describe('getTokenBridgeMessagesByAddress', () => {
+    let l1Bridge: Contract
+    let l2Bridge: Contract
+    let l1Messenger: Contract
+    let l2Messenger: Contract
+    let provider: CrossChainProvider
+    beforeEach(async () => {
+      l1Messenger = (await (
+        await ethers.getContractFactory('MockMessenger')
+      ).deploy()) as any
+      l2Messenger = (await (
+        await ethers.getContractFactory('MockMessenger')
+      ).deploy()) as any
+      l1Bridge = (await (
+        await ethers.getContractFactory('MockBridge')
+      ).deploy(l1Messenger.address)) as any
+      l2Bridge = (await (
+        await ethers.getContractFactory('MockBridge')
+      ).deploy(l2Messenger.address)) as any
+
+      provider = new CrossChainProvider({
+        l1Provider: ethers.provider,
+        l2Provider: ethers.provider,
+        l1ChainId: 31337,
+        contracts: {
+          l1: {
+            L1CrossDomainMessenger: l1Messenger.address,
+            L1StandardBridge: l1Bridge.address,
+          },
+          l2: {
+            L2CrossDomainMessenger: l2Messenger.address,
+            L2StandardBridge: l2Bridge.address,
+          },
+        },
+      })
+    })
+
     describe('when the address has made deposits or withdrawals', () => {
       describe('when a direction of L1 => L2 is specified', () => {
-        it('should find all deposits made by the address', () => {})
+        it('should find all deposits made by the address', async () => {
+          const from = '0x' + '99'.repeat(20)
+
+          const deposit = {
+            l1Token: '0x' + '11'.repeat(20),
+            l2Token: '0x' + '22'.repeat(20),
+            from,
+            to: '0x' + '44'.repeat(20),
+            amount: ethers.BigNumber.from(1234),
+            data: '0x1234',
+          }
+
+          const withdrawal = {
+            l1Token: '0x' + '12'.repeat(20),
+            l2Token: '0x' + '23'.repeat(20),
+            from,
+            to: '0x' + '45'.repeat(20),
+            amount: ethers.BigNumber.from(5678),
+            data: '0x5678',
+          }
+
+          await l1Bridge.emitERC20DepositInitiated(deposit)
+          await l2Bridge.emitWithdrawalInitiated(withdrawal)
+
+          const found = await provider.getTokenBridgeMessagesByAddress(from, {
+            direction: MessageDirection.L1_TO_L2,
+          })
+
+          expect(found.length).to.equal(1)
+          expect(found[0].amount).to.deep.equal(deposit.amount)
+          expect(found[0].data).to.deep.equal(deposit.data)
+          expect(found[0].direction).to.equal(MessageDirection.L1_TO_L2)
+          expect(found[0].l1Token).to.deep.equal(deposit.l1Token)
+          expect(found[0].l2Token).to.deep.equal(deposit.l2Token)
+          expect(found[0].from).to.deep.equal(deposit.from)
+          expect(found[0].to).to.deep.equal(deposit.to)
+        })
       })
 
       describe('when a direction of L2 => L1 is specified', () => {
-        it('should find all withdrawals made by the address', () => {})
+        it('should find all withdrawals made by the address', async () => {
+          const from = '0x' + '99'.repeat(20)
+
+          const deposit = {
+            l1Token: '0x' + '11'.repeat(20),
+            l2Token: '0x' + '22'.repeat(20),
+            from,
+            to: '0x' + '44'.repeat(20),
+            amount: ethers.BigNumber.from(1234),
+            data: '0x1234',
+          }
+
+          const withdrawal = {
+            l1Token: '0x' + '12'.repeat(20),
+            l2Token: '0x' + '23'.repeat(20),
+            from,
+            to: '0x' + '45'.repeat(20),
+            amount: ethers.BigNumber.from(5678),
+            data: '0x5678',
+          }
+
+          await l1Bridge.emitERC20DepositInitiated(deposit)
+          await l2Bridge.emitWithdrawalInitiated(withdrawal)
+
+          const found = await provider.getTokenBridgeMessagesByAddress(from, {
+            direction: MessageDirection.L2_TO_L1,
+          })
+
+          expect(found.length).to.equal(1)
+          expect(found[0].amount).to.deep.equal(withdrawal.amount)
+          expect(found[0].data).to.deep.equal(withdrawal.data)
+          expect(found[0].direction).to.equal(MessageDirection.L2_TO_L1)
+          expect(found[0].l1Token).to.deep.equal(withdrawal.l1Token)
+          expect(found[0].l2Token).to.deep.equal(withdrawal.l2Token)
+          expect(found[0].from).to.deep.equal(withdrawal.from)
+          expect(found[0].to).to.deep.equal(withdrawal.to)
+        })
+      })
+
+      describe('when no direction is specified', () => {
+        it('should find all deposits and withdrawals made by the address', async () => {
+          const from = '0x' + '99'.repeat(20)
+
+          const deposit = {
+            l1Token: '0x' + '11'.repeat(20),
+            l2Token: '0x' + '22'.repeat(20),
+            from,
+            to: '0x' + '44'.repeat(20),
+            amount: ethers.BigNumber.from(1234),
+            data: '0x1234',
+          }
+
+          const withdrawal = {
+            l1Token: '0x' + '12'.repeat(20),
+            l2Token: '0x' + '23'.repeat(20),
+            from,
+            to: '0x' + '45'.repeat(20),
+            amount: ethers.BigNumber.from(5678),
+            data: '0x5678',
+          }
+
+          await l1Bridge.emitERC20DepositInitiated(deposit)
+          await l2Bridge.emitWithdrawalInitiated(withdrawal)
+
+          const found = await provider.getTokenBridgeMessagesByAddress(from)
+
+          expect(found.length).to.equal(2)
+
+          // Check the deposit (deposits get searched first)
+          expect(found[0].amount).to.deep.equal(deposit.amount)
+          expect(found[0].data).to.deep.equal(deposit.data)
+          expect(found[0].direction).to.equal(MessageDirection.L1_TO_L2)
+          expect(found[0].l1Token).to.deep.equal(deposit.l1Token)
+          expect(found[0].l2Token).to.deep.equal(deposit.l2Token)
+          expect(found[0].from).to.deep.equal(deposit.from)
+          expect(found[0].to).to.deep.equal(deposit.to)
+
+          // Check the withdrawal
+          expect(found[1].amount).to.deep.equal(withdrawal.amount)
+          expect(found[1].data).to.deep.equal(withdrawal.data)
+          expect(found[1].direction).to.equal(MessageDirection.L2_TO_L1)
+          expect(found[1].l1Token).to.deep.equal(withdrawal.l1Token)
+          expect(found[1].l2Token).to.deep.equal(withdrawal.l2Token)
+          expect(found[1].from).to.deep.equal(withdrawal.from)
+          expect(found[1].to).to.deep.equal(withdrawal.to)
+        })
       })
 
       describe('when a block range is specified', () => {
-        it('should find all deposits or withdrawals within the block range', () => {})
+        describe('when a direction is specified', () => {
+          it('should find all deposits or withdrawals only in the given direction and within the block range', async () => {
+            const from = '0x' + '99'.repeat(20)
+
+            const deposit1 = {
+              l1Token: '0x' + '11'.repeat(20),
+              l2Token: '0x' + '22'.repeat(20),
+              from,
+              to: '0x' + '44'.repeat(20),
+              amount: ethers.BigNumber.from(1234),
+              data: '0x1234',
+            }
+
+            const deposit2 = {
+              l1Token: '0x' + '33'.repeat(20),
+              l2Token: '0x' + '44'.repeat(20),
+              from,
+              to: '0x' + '55'.repeat(20),
+              amount: ethers.BigNumber.from(1234),
+              data: '0x1234',
+            }
+
+            const withdrawal = {
+              l1Token: '0x' + '12'.repeat(20),
+              l2Token: '0x' + '23'.repeat(20),
+              from,
+              to: '0x' + '45'.repeat(20),
+              amount: ethers.BigNumber.from(5678),
+              data: '0x5678',
+            }
+
+            await l1Bridge.emitERC20DepositInitiated(deposit1)
+            const tx = await l1Bridge.emitERC20DepositInitiated(deposit2)
+            await l2Bridge.emitWithdrawalInitiated(withdrawal)
+
+            const found = await provider.getTokenBridgeMessagesByAddress(from, {
+              direction: MessageDirection.L1_TO_L2,
+              fromBlock: tx.blockNumber,
             })
 
-      describe('when both a direction and a block range are specified', () => {
-        it('should find all deposits or withdrawals only in the given direction and within the block range', () => {})
+            expect(found.length).to.equal(1)
+            expect(found[0].amount).to.deep.equal(deposit2.amount)
+            expect(found[0].data).to.deep.equal(deposit2.data)
+            expect(found[0].direction).to.equal(MessageDirection.L1_TO_L2)
+            expect(found[0].l1Token).to.deep.equal(deposit2.l1Token)
+            expect(found[0].l2Token).to.deep.equal(deposit2.l2Token)
+            expect(found[0].from).to.deep.equal(deposit2.from)
+            expect(found[0].to).to.deep.equal(deposit2.to)
+          })
+        })
+
+        describe('when a direction is not specified', () => {
+          it('should throw an error', async () => {
+            const from = '0x' + '99'.repeat(20)
+            await expect(
+              provider.getTokenBridgeMessagesByAddress(from, {
+                fromBlock: 0,
+                toBlock: 100,
+              })
+            ).to.be.rejectedWith('direction must be specified')
+          })
+        })
       })
     })
 
     describe('when the address has not made any deposits or withdrawals', () => {
-      it('should find nothing', () => {})
+      it('should find nothing', async () => {
+        const from = '0x' + '99'.repeat(20)
+        const found = await provider.getTokenBridgeMessagesByAddress(from)
+        expect(found).to.deep.equal([])
+      })
     })
   })
 
@@ -152,10 +678,14 @@ describe('CrossChainProvider', () => {
         })
 
         describe('when the message has not been relayed', () => {
-          it('should return a status of READY_FOR_RELAY')
+          it('should return a status of READY_FOR_RELAY', () => {})
         })
       })
     })
+
+    describe('when the message does not exist', () => {
+      it('should throw an error', () => {})
+    })
   })
 
   describe('getMessageReceipt', () => {
@@ -176,6 +706,10 @@ describe('CrossChainProvider', () => {
     describe('when the message has not been relayed', () => {
       it('should return null', () => {})
     })
+
+    describe('when the message does not exist', () => {
+      it('should throw an error', () => {})
+    })
   })
 
   describe('waitForMessageReciept', () => {
@@ -193,16 +727,14 @@ describe('CrossChainProvider', () => {
         it('should throw an error if the timeout is reached', () => {})
       })
     })
-  })
 
-  describe('estimateMessageExecutionGas', () => {
-    describe('when the message is an L1 => L2 message', () => {
-      it('should perform a gas estimation of the L2 action', () => {})
+    describe('when the message does not exist', () => {
+      it('should throw an error', () => {})
     })
-
-    describe('when the message is an L2 => L1 message', () => {
-      it('should perform a gas estimation of the L1 action, including the cost of the proof', () => {})
   })
+
+  describe('estimateL2MessageGasLimit', () => {
+    it('should perform a gas estimation of the L2 action', () => {})
   })
 
   describe('estimateMessageWaitTimeBlocks', () => {
@@ -219,7 +751,7 @@ describe('CrossChainProvider', () => {
 
       describe('when the message is an L2 => L1 message', () => {
         describe('when the state root has not been published', () => {
-          it('should return null', () => {})
+          it('should return the estimated blocks until the state root will be published and pass the challenge period', () => {})
         })
 
         describe('when the state root is within the challenge period', () => {

packages/sdk/test/utils.spec.ts → packages/sdk/test/utils/coercion.spec.ts

-import { expect } from './setup'
+import { expect } from '../setup'
 import { Provider } from '@ethersproject/abstract-provider'
-import { Contract, Signer } from 'ethers'
+import { Contract } from 'ethers'
 import { ethers } from 'hardhat'
-import { getContractFactory } from '@eth-optimism/contracts'
-import {
-  toProvider,
-  toTransactionHash,
-  CrossChainMessage,
-  MessageDirection,
-  encodeCrossChainMessage,
-  hashCrossChainMessage,
-} from '../src'
-
-describe('utils', () => {
-  let signers: Signer[]
-  before(async () => {
-    signers = (await ethers.getSigners()) as any
-  })
-
-  describe('encodeCrossChainMessage', () => {
-    let Lib_CrossDomainUtils: Contract
-    before(async () => {
-      Lib_CrossDomainUtils = (await getContractFactory(
-        'TestLib_CrossDomainUtils',
-        signers[0]
-      ).deploy()) as any
-    })
-
-    it('should properly encode a message', async () => {
-      const message: CrossChainMessage = {
-        direction: MessageDirection.L1_TO_L2,
-        target: '0x' + '11'.repeat(20),
-        sender: '0x' + '22'.repeat(20),
-        message: '0x' + '1234'.repeat(32),
-        messageNonce: 1234,
-      }
-
-      const actual = encodeCrossChainMessage(message)
-      const expected = await Lib_CrossDomainUtils.encodeXDomainCalldata(
-        message.target,
-        message.sender,
-        message.message,
-        message.messageNonce
-      )
-      expect(actual).to.equal(expected)
-    })
-  })
-
-  describe('hashCrossChainMessage', () => {
-    let MessageEncodingHelper: Contract
-    before(async () => {
-      MessageEncodingHelper = (await (
-        await ethers.getContractFactory('MessageEncodingHelper')
-      ).deploy()) as any
-    })
-
-    it('should properly hash a message', async () => {
-      const message: CrossChainMessage = {
-        direction: MessageDirection.L1_TO_L2,
-        target: '0x' + '11'.repeat(20),
-        sender: '0x' + '22'.repeat(20),
-        message: '0x' + '1234'.repeat(32),
-        messageNonce: 1234,
-      }
-
-      const actual = hashCrossChainMessage(message)
-      const expected = await MessageEncodingHelper.hashXDomainCalldata(
-        message.target,
-        message.sender,
-        message.message,
-        message.messageNonce
-      )
-      expect(actual).to.equal(expected)
-    })
-  })
+import { toProvider, toTransactionHash } from '../../src'
 
+describe('type coercion utils', () => {
   describe('toProvider', () => {
     it('should convert a string to a JsonRpcProvider', () => {
       const provider = toProvider('http://localhost:8545')

packages/sdk/test/utils/contracts.spec.ts

+/* eslint-disable @typescript-eslint/no-empty-function */
+import { expect } from '../setup'
+import {
+  getOEContract,
+  getAllOEContracts,
+  CONTRACT_ADDRESSES,
+  DEFAULT_L2_CONTRACT_ADDRESSES,
+} from '../../src'
+import { Signer } from 'ethers'
+import { ethers } from 'hardhat'
+
+describe('contract connection utils', () => {
+  let signers: Signer[]
+  before(async () => {
+    signers = (await ethers.getSigners()) as any
+  })
+
+  describe('getOEContract', () => {
+    describe('when given a known chain ID', () => {
+      describe('when not given an address override', () => {
+        it('should use the address for the given contract name and chain ID', () => {
+          const addresses = CONTRACT_ADDRESSES[1]
+          for (const [contractName, contractAddress] of [
+            ...Object.entries(addresses.l1),
+            ...Object.entries(addresses.l2),
+          ]) {
+            const contract = getOEContract(contractName as any, 1)
+            expect(contract.address).to.equal(contractAddress)
+          }
+        })
+      })
+
+      describe('when given an address override', () => {
+        it('should use the custom address', () => {
+          const addresses = CONTRACT_ADDRESSES[1]
+          for (const contractName of [
+            ...Object.keys(addresses.l1),
+            ...Object.keys(addresses.l2),
+          ]) {
+            const address = '0x' + '11'.repeat(20)
+            const contract = getOEContract(contractName as any, 1, {
+              address,
+            })
+            expect(contract.address).to.equal(address)
+          }
+        })
+      })
+    })
+
+    describe('when given an unknown chain ID', () => {
+      describe('when not given an address override', () => {
+        it('should throw an error', () => {
+          expect(() => getOEContract('L1CrossDomainMessenger', 3)).to.throw()
+        })
+      })
+
+      describe('when given an address override', () => {
+        it('should use the custom address', () => {
+          const address = '0x' + '11'.repeat(20)
+          const contract = getOEContract('L1CrossDomainMessenger', 3, {
+            address,
+          })
+          expect(contract.address).to.equal(address)
+        })
+      })
+    })
+
+    describe('when connected to a valid address', () => {
+      it('should have the correct interface for the contract name', () => {
+        const contract = getOEContract('L1CrossDomainMessenger', 1)
+        expect(contract.sendMessage).to.not.be.undefined
+      })
+
+      describe('when not given a signer or provider', () => {
+        it('should not have a signer or provider', () => {
+          const contract = getOEContract('L1CrossDomainMessenger', 1)
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.be.null
+        })
+      })
+
+      describe('when given a signer', () => {
+        it('should attach the given signer', () => {
+          const contract = getOEContract('L1CrossDomainMessenger', 1, {
+            signerOrProvider: signers[0],
+          })
+          expect(contract.signer).to.deep.equal(signers[0])
+        })
+      })
+
+      describe('when given a provider', () => {
+        it('should attach the given provider', () => {
+          const contract = getOEContract('L1CrossDomainMessenger', 1, {
+            signerOrProvider: ethers.provider as any,
+          })
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.deep.equal(ethers.provider)
+        })
+      })
+    })
+  })
+
+  describe('getAllOEContracts', () => {
+    describe('when given a known chain ID', () => {
+      describe('when not given any address overrides', () => {
+        it('should return all contracts connected to the default addresses', () => {
+          const contracts = getAllOEContracts(1)
+          const addresses = CONTRACT_ADDRESSES[1]
+          for (const [contractName, contractAddress] of Object.entries(
+            addresses.l1
+          )) {
+            const contract = contracts.l1[contractName]
+            expect(contract.address).to.equal(contractAddress)
+          }
+          for (const [contractName, contractAddress] of Object.entries(
+            addresses.l2
+          )) {
+            const contract = contracts.l2[contractName]
+            expect(contract.address).to.equal(contractAddress)
+          }
+        })
+      })
+
+      describe('when given address overrides', () => {
+        it('should return contracts connected to the overridden addresses where given', () => {
+          const overrides = {
+            l1: {
+              L1CrossDomainMessenger: '0x' + '11'.repeat(20),
+            },
+            l2: {
+              L2CrossDomainMessenger: '0x' + '22'.repeat(20),
+            },
+          }
+          const contracts = getAllOEContracts(1, { overrides })
+          const addresses = CONTRACT_ADDRESSES[1]
+          for (const [contractName, contractAddress] of Object.entries(
+            addresses.l1
+          )) {
+            const contract = contracts.l1[contractName]
+            if (overrides.l1[contractName]) {
+              expect(contract.address).to.equal(overrides.l1[contractName])
+            } else {
+              expect(contract.address).to.equal(contractAddress)
+            }
+          }
+          for (const [contractName, contractAddress] of Object.entries(
+            addresses.l2
+          )) {
+            const contract = contracts.l2[contractName]
+            if (overrides.l2[contractName]) {
+              expect(contract.address).to.equal(overrides.l2[contractName])
+            } else {
+              expect(contract.address).to.equal(contractAddress)
+            }
+          }
+        })
+      })
+    })
+
+    describe('when given an unknown chain ID', () => {
+      describe('when given address overrides for all L1 contracts', () => {
+        describe('when given address overrides for L2 contracts', () => {
+          it('should return contracts connected to the overridden addresses where given', () => {
+            const l1Overrides = {}
+            for (const contractName of Object.keys(CONTRACT_ADDRESSES[1].l1)) {
+              l1Overrides[contractName] = '0x' + '11'.repeat(20)
+            }
+
+            const contracts = getAllOEContracts(3, {
+              overrides: {
+                l1: l1Overrides as any,
+                l2: {
+                  L2CrossDomainMessenger: '0x' + '22'.repeat(20),
+                },
+              },
+            })
+
+            for (const [contractName, contract] of Object.entries(
+              contracts.l1
+            )) {
+              expect(contract.address).to.equal(l1Overrides[contractName])
+            }
+
+            expect(contracts.l2.L2CrossDomainMessenger.address).to.equal(
+              '0x' + '22'.repeat(20)
+            )
+          })
+        })
+
+        describe('when not given address overrides for L2 contracts', () => {
+          it('should return contracts connected to the default L2 addresses and custom L1 addresses', () => {
+            const l1Overrides = {}
+            for (const contractName of Object.keys(CONTRACT_ADDRESSES[1].l1)) {
+              l1Overrides[contractName] = '0x' + '11'.repeat(20)
+            }
+
+            const contracts = getAllOEContracts(3, {
+              overrides: {
+                l1: l1Overrides as any,
+              },
+            })
+
+            for (const [contractName, contract] of Object.entries(
+              contracts.l1
+            )) {
+              expect(contract.address).to.equal(l1Overrides[contractName])
+            }
+
+            for (const [contractName, contract] of Object.entries(
+              contracts.l2
+            )) {
+              expect(contract.address).to.equal(
+                DEFAULT_L2_CONTRACT_ADDRESSES[contractName]
+              )
+            }
+          })
+        })
+      })
+
+      describe('when given address overrides for some L1 contracts', () => {
+        it('should throw an error', () => {
+          expect(() =>
+            getAllOEContracts(3, {
+              overrides: {
+                l1: {
+                  L1CrossDomainMessenger: '0x' + '11'.repeat(20),
+                },
+              },
+            })
+          ).to.throw()
+        })
+      })
+
+      describe('when given address overrides for no L1 contracts', () => {
+        it('should throw an error', () => {
+          expect(() => getAllOEContracts(3)).to.throw()
+        })
+      })
+    })
+
+    describe('when not given a signer or provider', () => {
+      it('should not attach a signer or provider to any contracts', () => {
+        const contracts = getAllOEContracts(1)
+        for (const contract of Object.values(contracts.l1)) {
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.be.null
+        }
+        for (const contract of Object.values(contracts.l2)) {
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.be.null
+        }
+      })
+    })
+
+    describe('when given an L1 signer', () => {
+      it('should attach the signer to the L1 contracts only', () => {
+        const contracts = getAllOEContracts(1, {
+          l1SignerOrProvider: signers[0],
+        })
+        for (const contract of Object.values(contracts.l1)) {
+          expect(contract.signer).to.deep.equal(signers[0])
+        }
+        for (const contract of Object.values(contracts.l2)) {
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.be.null
+        }
+      })
+    })
+
+    describe('when given an L2 signer', () => {
+      it('should attach the signer to the L2 contracts only', () => {
+        const contracts = getAllOEContracts(1, {
+          l2SignerOrProvider: signers[0],
+        })
+        for (const contract of Object.values(contracts.l1)) {
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.be.null
+        }
+        for (const contract of Object.values(contracts.l2)) {
+          expect(contract.signer).to.deep.equal(signers[0])
+        }
+      })
+    })
+
+    describe('when given an L1 signer and an L2 signer', () => {
+      it('should attach the signer to both sets of contracts', () => {
+        const contracts = getAllOEContracts(1, {
+          l1SignerOrProvider: signers[0],
+          l2SignerOrProvider: signers[1],
+        })
+        for (const contract of Object.values(contracts.l1)) {
+          expect(contract.signer).to.deep.equal(signers[0])
+        }
+        for (const contract of Object.values(contracts.l2)) {
+          expect(contract.signer).to.deep.equal(signers[1])
+        }
+      })
+    })
+
+    describe('when given an L1 provider', () => {
+      it('should attach the provider to the L1 contracts only', () => {
+        const contracts = getAllOEContracts(1, {
+          l1SignerOrProvider: ethers.provider as any,
+        })
+        for (const contract of Object.values(contracts.l1)) {
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.deep.equal(ethers.provider)
+        }
+        for (const contract of Object.values(contracts.l2)) {
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.be.null
+        }
+      })
+    })
+
+    describe('when given an L2 provider', () => {
+      it('should attach the provider to the L2 contracts only', () => {
+        const contracts = getAllOEContracts(1, {
+          l2SignerOrProvider: ethers.provider as any,
+        })
+        for (const contract of Object.values(contracts.l1)) {
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.be.null
+        }
+        for (const contract of Object.values(contracts.l2)) {
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.deep.equal(ethers.provider)
+        }
+      })
+    })
+
+    describe('when given an L1 provider and an L2 provider', () => {
+      it('should attach the provider to both sets of contracts', () => {
+        const contracts = getAllOEContracts(1, {
+          l1SignerOrProvider: ethers.provider as any,
+          l2SignerOrProvider: ethers.provider as any,
+        })
+        for (const contract of Object.values(contracts.l1)) {
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.deep.equal(ethers.provider)
+        }
+        for (const contract of Object.values(contracts.l2)) {
+          expect(contract.signer).to.be.null
+          expect(contract.provider).to.deep.equal(ethers.provider)
+        }
+      })
+    })
+  })
+})

packages/sdk/test/utils/message-encoding.spec.ts

+import { expect } from '../setup'
+import { Contract, Signer } from 'ethers'
+import { ethers } from 'hardhat'
+import { getContractFactory } from '@eth-optimism/contracts'
+import {
+  CoreCrossChainMessage,
+  encodeCrossChainMessage,
+  hashCrossChainMessage,
+} from '../../src'
+
+describe('message encoding utils', () => {
+  let signers: Signer[]
+  before(async () => {
+    signers = (await ethers.getSigners()) as any
+  })
+
+  describe('encodeCrossChainMessage', () => {
+    let Lib_CrossDomainUtils: Contract
+    before(async () => {
+      Lib_CrossDomainUtils = (await getContractFactory(
+        'TestLib_CrossDomainUtils',
+        signers[0]
+      ).deploy()) as any
+    })
+
+    it('should properly encode a message', async () => {
+      const message: CoreCrossChainMessage = {
+        target: '0x' + '11'.repeat(20),
+        sender: '0x' + '22'.repeat(20),
+        message: '0x' + '1234'.repeat(32),
+        messageNonce: 1234,
+      }
+
+      const actual = encodeCrossChainMessage(message)
+      const expected = await Lib_CrossDomainUtils.encodeXDomainCalldata(
+        message.target,
+        message.sender,
+        message.message,
+        message.messageNonce
+      )
+      expect(actual).to.equal(expected)
+    })
+  })
+
+  describe('hashCrossChainMessage', () => {
+    let MessageEncodingHelper: Contract
+    before(async () => {
+      MessageEncodingHelper = (await (
+        await ethers.getContractFactory('MessageEncodingHelper')
+      ).deploy()) as any
+    })
+
+    it('should properly hash a message', async () => {
+      const message: CoreCrossChainMessage = {
+        target: '0x' + '11'.repeat(20),
+        sender: '0x' + '22'.repeat(20),
+        message: '0x' + '1234'.repeat(32),
+        messageNonce: 1234,
+      }
+
+      const actual = hashCrossChainMessage(message)
+      const expected = await MessageEncodingHelper.hashXDomainCalldata(
+        message.target,
+        message.sender,
+        message.message,
+        message.messageNonce
+      )
+      expect(actual).to.equal(expected)
+    })
+  })
+})