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Commit 3ec03a23 authored by Matthew Slipper's avatar Matthew Slipper
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Add proxy RPC daemon

parent 2a7d347d
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.github/workflows/publish-canary.yml
View file @ 3ec03a23
...@@ -23,6 +23,7 @@ jobs: ...@@ -23,6 +23,7 @@ jobs:
contracts: ${{ steps.packages.outputs.contracts }} contracts: ${{ steps.packages.outputs.contracts }}
replica-healthcheck: ${{ steps.packages.outputs.replica-healthcheck }} replica-healthcheck: ${{ steps.packages.outputs.replica-healthcheck }}
canary-docker-tag: ${{ steps.docker-image-name.outputs.canary-docker-tag }} canary-docker-tag: ${{ steps.docker-image-name.outputs.canary-docker-tag }}
proxyd: ${{ steps.canary-publish.outputs.proxyd }}
steps: steps:
- name: Check out source code - name: Check out source code
...@@ -308,3 +309,36 @@ jobs: ...@@ -308,3 +309,36 @@ jobs:
file: ./ops/docker/Dockerfile.replica-healthcheck file: ./ops/docker/Dockerfile.replica-healthcheck
push: true push: true
tags: ethereumoptimism/replica-healthcheck:${{ needs.builder.outputs.canary-docker-tag }} tags: ethereumoptimism/replica-healthcheck:${{ needs.builder.outputs.canary-docker-tag }}
proxyd:
name: Publish proxyd Version ${{ needs.canary-publish.outputs.canary-docker-tag }}
needs: canary-publish
if: needs.canary-publish.outputs.proxyd != ''
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: ${{ secrets.DOCKERHUB_ACCESS_TOKEN_SECRET }}
- name: Set env
run: |
echo "GITDATE=$(date)" >> $GITHUB_ENV"
- name: Build and push
uses: docker/build-push-action@v2
with:
context: ./go/proxyd
file: ./Dockerfile
push: true
tags: ethereumoptimism/proxyd:${{ needs.canary-publish.outputs.proxyd }}
build-args:
- GITCOMMIT=$GITHUB_SHA
- GITDATE=$GITDATE
.github/workflows/release.yml
View file @ 3ec03a23
...@@ -19,6 +19,7 @@ jobs: ...@@ -19,6 +19,7 @@ jobs:
contracts: ${{ steps.packages.outputs.contracts }} contracts: ${{ steps.packages.outputs.contracts }}
gas-oracle: ${{ steps.packages.outputs.gas-oracle }} gas-oracle: ${{ steps.packages.outputs.gas-oracle }}
replica-healthcheck: ${{ steps.packages.outputs.replica-healthcheck }} replica-healthcheck: ${{ steps.packages.outputs.replica-healthcheck }}
proxyd: ${{ steps.packages.outputs.proxyd }}
steps: steps:
- name: Checkout Repo - name: Checkout Repo
...@@ -326,3 +327,36 @@ jobs: ...@@ -326,3 +327,36 @@ jobs:
file: ./ops/docker/Dockerfile.replica-healthcheck file: ./ops/docker/Dockerfile.replica-healthcheck
push: true push: true
tags: ethereumoptimism/replica-healthcheck:${{ needs.builder.outputs.replica-healthcheck }},ethereumoptimism/replica-healthcheck:latest tags: ethereumoptimism/replica-healthcheck:${{ needs.builder.outputs.replica-healthcheck }},ethereumoptimism/replica-healthcheck:latest
proxyd:
name: Publish proxyd Version ${{ needs.release.outputs.proxyd }}
needs: release
if: needs.release.outputs.proxyd != ''
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: ${{ secrets.DOCKERHUB_ACCESS_TOKEN_SECRET }}
- name: Set env
run: |
echo "GITDATE=$(date)" >> $GITHUB_ENV"
- name: Build and push
uses: docker/build-push-action@v2
with:
context: ./go/proxyd
file: ./Dockerfile
push: true
tags: ethereumoptimism/proxyd:${{ needs.canary-publish.outputs.proxyd }}
build-args:
- GITCOMMIT=$GITHUB_SHA
- GITDATE=$GITDATE
go/proxyd/Dockerfile 0 → 100644
View file @ 3ec03a23
FROM golang:1.17.2-alpine3.14 AS builder
ARG GITCOMMIT=docker
ARG GITDATE=docker
ARG GITVERSION=docker
RUN apk add make jq && \
mkdir -p /app
WORKDIR /app
COPY go.mod /app
COPY go.sum /app
COPY cmd /app/cmd
COPY *.go /app/
COPY package.json /app
COPY Makefile /app
RUN make proxyd GITCOMMIT=$GITCOMMIT GITDATE=$GITDATE
FROM alpine:3.14.2
EXPOSE 8080
VOLUME /etc/proxyd.toml
COPY --from=builder /app/bin/proxyd /bin/proxyd
CMD ["/bin/proxyd", "/etc/proxyd.toml"]
go/proxyd/Makefile 0 → 100644
View file @ 3ec03a23
GITCOMMIT := $(shell git rev-parse HEAD)
GITDATE := $(shell git show -s --format='%ct')
GITVERSION := $(shell cat package.json | jq .version)
LDFLAGSSTRING +=-X main.GitCommit=$(GITCOMMIT)
LDFLAGSSTRING +=-X main.GitDate=$(GITDATE)
LDFLAGSSTRING +=-X main.GitVersion=$(GITVERSION)
LDFLAGS := -ldflags "$(LDFLAGSSTRING)"
proxyd:
go build -v $(LDFLAGS) -o ./bin/proxyd ./cmd/proxyd
.PHONY: proxyd
fmt:
go mod tidy
gofmt -w .
.PHONY: fmt
go/proxyd/README.md 0 → 100644
View file @ 3ec03a23
# rpc-proxy
This tool implements `proxyd`, an RPC request router and proxy. It does the following things:
1. Whitelists RPC methods.
2. Routes RPC methods to groups of backend services.
3. Automatically retries failed backend requests.
4. Provides metrics the measure request latency, error rates, and the like.
## Usage
Run `make proxyd` to build the binary. No additional dependencies are necessary.
To configure `proxyd` for use, you'll need to create a configuration file to define your proxy backends and routing rules. An example config that routes `eth_chainId` between Infura and Alchemy is below:
```toml
[backends]
[backends.infura]
base_url = "url-here"
[backends.alchemy]
base_url = "url-here"
[backend_groups]
[backend_groups.main]
backends = ["infura", "alchemy"]
[method_mappings]
eth_chainId = "main"
```
Check out [example.config.toml](./example.config.toml) for a full list of all options with commentary.
Once you have a config file, start the daemon via `proxyd <path-to-config>.toml`.
## Metrics
The following Prometheus metrics are exported:
| Name | Description | Flags |
|------------------------------------------------|-------------------------------------------------------------------------------------------------|----------------------------------------|
| `proxyd_backend_requests_total` | Count of all successful requests to a backend. | backend_name: The name of the backend. |
| `proxyd_backend_errors_total` | Count of all backend errors. | backend_name: The name of the backend |
| `proxyd_http_requests_total` | Count of all HTTP requests, successful or not. | |
| `proxyd_http_request_duration_histogram_seconds` | Histogram of HTTP request durations. | |
| `proxyd_rpc_requests_total` | Count of all RPC requests. | method_name: The RPC method requested. |
| `proxyd_blocked_rpc_requests_total` | Count of all RPC requests with a blacklisted method. | method_name: The RPC method requested. |
| `proxyd_rpc_errors_total` | Count of all RPC errors. **NOTE:** Does not include errors sent from the backend to the client. |
The metrics port is configurable via the `metrics.port` and `metrics.host` keys in the config.
## Errata
- RPC errors originating from the backend (e.g., any backend response containing an `error` key) are passed on to the client directly. This simplifies the code and avoids having to marshal/unmarshal the backend's response JSON.
- Requests are distributed round-robin between backends in a group.
\ No newline at end of file
go/proxyd/backend.go 0 → 100644
View file @ 3ec03a23
package proxyd
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"github.com/ethereum/go-ethereum/log"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
"io"
"io/ioutil"
"math"
"math/rand"
"net/http"
"sync/atomic"
"time"
)
const (
JSONRPCVersion = "2.0"
)
var (
ErrNoBackend = errors.New("no backend available for method")
ErrBackendsInconsistent = errors.New("backends inconsistent, try again")
ErrBackendOffline = errors.New("backend offline")
backendRequestsCtr = promauto.NewCounterVec(prometheus.CounterOpts{
Namespace: "proxyd",
Name: "backend_requests_total",
Help: "Count of backend requests.",
}, []string{
"name",
})
backendErrorsCtr = promauto.NewCounterVec(prometheus.CounterOpts{
Namespace: "proxyd",
Name: "backend_errors_total",
Help: "Count of backend errors.",
}, []string{
"name",
})
backendPermanentErrorsCtr = promauto.NewCounterVec(prometheus.CounterOpts{
Namespace: "proxyd",
Name: "backend_permanent_errors_total",
Help: "Count of backend errors that mark a backend as offline.",
}, []string{
"name",
})
)
type Backend struct {
Name string
authUsername string
authPassword string
baseURL string
client *http.Client
maxRetries int
maxResponseSize int64
lastPermError int64
unhealthyRetryInterval int64
}
type BackendOpt func(b *Backend)
func WithBasicAuth(username, password string) BackendOpt {
return func(b *Backend) {
b.authUsername = username
b.authPassword = password
}
}
func WithTimeout(timeout time.Duration) BackendOpt {
return func(b *Backend) {
b.client.Timeout = timeout
}
}
func WithMaxRetries(retries int) BackendOpt {
return func(b *Backend) {
b.maxRetries = retries
}
}
func WithMaxResponseSize(size int64) BackendOpt {
return func(b *Backend) {
b.maxResponseSize = size
}
}
func WithUnhealthyRetryInterval(interval int64) BackendOpt {
return func(b *Backend) {
b.unhealthyRetryInterval = interval
}
}
func NewBackend(name, baseURL string, opts ...BackendOpt) *Backend {
backend := &Backend{
Name: name,
baseURL: baseURL,
maxResponseSize: math.MaxInt64,
client: &http.Client{
Timeout: 5 * time.Second,
},
}
for _, opt := range opts {
opt(backend)
}
return backend
}
func (b *Backend) Forward(body []byte) (*RPCRes, error) {
if time.Now().Unix()-atomic.LoadInt64(&b.lastPermError) < b.unhealthyRetryInterval {
return nil, ErrBackendOffline
}
var lastError error
// <= to account for the first attempt not technically being
// a retry
for i := 0; i <= b.maxRetries; i++ {
resB, err := b.doForward(body)
if err != nil {
lastError = err
log.Warn("backend request failed, trying again", "err", err, "name", b.Name)
time.Sleep(calcBackoff(i))
continue
}
res := new(RPCRes)
// don't mark the backend down if they give us a bad response body
if err := json.Unmarshal(resB, res); err != nil {
return nil, wrapErr(err, "error unmarshaling JSON")
}
return res, nil
}
atomic.StoreInt64(&b.lastPermError, time.Now().Unix())
backendPermanentErrorsCtr.WithLabelValues(b.Name).Inc()
return nil, wrapErr(lastError, "permanent error forwarding request")
}
func (b *Backend) doForward(body []byte) ([]byte, error) {
req, err := http.NewRequest("POST", b.baseURL, bytes.NewReader(body))
if err != nil {
backendErrorsCtr.WithLabelValues(b.Name).Inc()
return nil, wrapErr(err, "error creating backend request")
}
if b.authPassword != "" {
req.SetBasicAuth(b.authUsername, b.authPassword)
}
res, err := b.client.Do(req)
if err != nil {
backendErrorsCtr.WithLabelValues(b.Name).Inc()
return nil, wrapErr(err, "error in backend request")
}
if res.StatusCode != 200 {
backendErrorsCtr.WithLabelValues(b.Name).Inc()
return nil, fmt.Errorf("response code %d", res.StatusCode)
}
defer res.Body.Close()
resB, err := ioutil.ReadAll(io.LimitReader(res.Body, b.maxResponseSize))
if err != nil {
backendErrorsCtr.WithLabelValues(b.Name).Inc()
return nil, wrapErr(err, "error reading response body")
}
backendRequestsCtr.WithLabelValues(b.Name).Inc()
return resB, nil
}
type BackendGroup struct {
Name string
backends []*Backend
i int64
}
func (b *BackendGroup) Forward(body []byte) (*RPCRes, error) {
var outRes *RPCRes
for _, back := range b.backends {
res, err := back.Forward(body)
if err == ErrBackendOffline {
log.Debug("skipping offline backend", "name", back.Name)
continue
}
if err != nil {
log.Error("error forwarding request to backend", "err", err, "name", b.Name)
continue
}
outRes = res
break
}
if outRes == nil {
return nil, errors.New("no backends available")
}
return outRes, nil
}
type MethodMapping struct {
methods map[string]*BackendGroup
}
func NewMethodMapping(methods map[string]*BackendGroup) *MethodMapping {
return &MethodMapping{methods: methods}
}
func (m *MethodMapping) BackendGroupFor(method string) (*BackendGroup, error) {
group := m.methods[method]
if group == nil {
return nil, ErrNoBackend
}
return group, nil
}
func calcBackoff(i int) time.Duration {
jitter := float64(rand.Int63n(250))
ms := math.Min(math.Pow(2, float64(i))*1000+jitter, 10000)
return time.Duration(ms) * time.Millisecond
}
go/proxyd/cmd/proxyd/main.go 0 → 100644
View file @ 3ec03a23
package main
import (
"github.com/BurntSushi/toml"
"github.com/ethereum-optimism/optimism/go/proxyd"
"github.com/ethereum/go-ethereum/log"
"os"
)
var (
GitVersion = ""
GitCommit = ""
GitDate = ""
)
func main() {
// Set up logger with a default INFO level in case we fail to parse flags.
// Otherwise the final critical log won't show what the parsing error was.
log.Root().SetHandler(
log.LvlFilterHandler(
log.LvlInfo,
log.StreamHandler(os.Stdout, log.TerminalFormat(true)),
),
)
log.Info("starting proxyd", "version", GitVersion, "commit", GitCommit, "date", GitDate)
if len(os.Args) < 2 {
log.Crit("must specify a config file on the command line")
}
config := new(proxyd.Config)
if _, err := toml.DecodeFile(os.Args[1], config); err != nil {
log.Crit("error reading config file", "err", err)
}
if err := proxyd.Start(config); err != nil {
log.Crit("error starting proxyd", "err", err)
}
}
go/proxyd/config.go 0 → 100644
View file @ 3ec03a23
package proxyd
type ServerConfig struct {
Host string `toml:"host"`
Port int `toml:"port"`
MaxBodySizeBytes int64 `toml:"max_body_size_bytes"`
}
type MetricsConfig struct {
Enabled bool `toml:"enabled"`
Host string `toml:"host"`
Port int `toml:"port"`
}
type BackendOptions struct {
ResponseTimeoutSeconds int `toml:"response_timeout_seconds"`
MaxResponseSizeBytes int64 `toml:"max_response_size_bytes"`
MaxRetries int `toml:"backend_retries"`
UnhealthyBackendRetryIntervalSeconds int64 `toml:"unhealthy_backend_retry_interval_seconds"`
}
type BackendConfig struct {
Username string `toml:"username"`
Password string `toml:"password"`
BaseURL string `toml:"base_url"`
}
type BackendsConfig map[string]*BackendConfig
type BackendGroupConfig struct {
Backends []string
}
type BackendGroupsConfig map[string]*BackendGroupConfig
type MethodMappingsConfig map[string]string
type Config struct {
Server *ServerConfig `toml:"server"`
Metrics *MetricsConfig `toml:"metrics"`
BackendOptions *BackendOptions `toml:"backend"`
Backends BackendsConfig `toml:"backends"`
BackendGroups BackendGroupsConfig `toml:"backend_groups"`
MethodMappings MethodMappingsConfig `toml:"method_mappings"`
}
go/proxyd/errors.go 0 → 100644
View file @ 3ec03a23
package proxyd
import "fmt"
func wrapErr(err error, msg string) error {
return fmt.Errorf("%s %v", msg, err)
}
go/proxyd/example.config.toml 0 → 100644
View file @ 3ec03a23
[server]
# Host for the proxyd server to listen on.
host = "0.0.0.0"
# Port for the above.
port = 8080
# Maximum client body size, in bytes, that the server will accept.
max_body_size_bytes = 10485760
[metrics]
# Whether or not to enable Prometheus metrics.
enabled = true
# Host for the Prometheus metrics endpoint to listen on.
host = "0.0.0.0"
# Port for the above.
port = 9761
[backend]
# How long proxyd should wait for a backend response before timing out.
response_timeout_seconds = 5
# Maximum response size, in bytes, that proxyd will accept from a backend.
max_response_size_bytes = 5242880
# Maximum number of times proxyd will try a backend before giving up.
max_retries = 0
# Number of seconds to wait before trying an unhealthy backend again.
unhealthy_backend_retry_interval_seconds = 600
[backends]
# A map of backends by name.
[backends.infura]
# The URL to contact the backend at.
base_url = "url-here"
# HTTP basic auth username to use with the backend.
username = ""
# HTTP basic auth password to use with the backend.
password = ""
[backend_groups]
# A map of backend groups by name.
[backend_groups.main]
# A list of backend names to place in the group.
backends = ["infura", "alchemy"]
[method_mappings]
# A mapping between RPC methods and the backend groups that should serve them.
eth_call = "main"
eth_chainId = "main"
# other mappings go here
go/proxyd/go.mod 0 → 100644
View file @ 3ec03a23
module github.com/ethereum-optimism/optimism/go/proxyd
go 1.16
require (
github.com/BurntSushi/toml v0.4.1
github.com/ethereum/go-ethereum v1.10.11
github.com/gorilla/mux v1.8.0
github.com/prometheus/client_golang v1.11.0
)
go/proxyd/go.sum 0 → 100644
View file @ 3ec03a23
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/go.mod h1:4rQ/NZncSvGqNkkOsNpOU1tgoNuIlp9AfUH5G1tvCHc=
github.com/Azure/azure-storage-blob-go v0.7.0/go.mod h1:f9YQKtsG1nMisotuTPpO0tjNuEjKRYAcJU8/ydDI++4=
github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
github.com/Azure/go-autorest/autorest/adal v0.8.0/go.mod h1:Z6vX6WXXuyieHAXwMj0S6HY6e6wcHn37qQMBQlvY3lc=
github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
github.com/Azure/go-autorest/autorest/date v0.2.0/go.mod h1:vcORJHLJEh643/Ioh9+vPmf1Ij9AEBM5FuBIXLmIy0g=
github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
github.com/Azure/go-autorest/autorest/mocks v0.3.0/go.mod h1:a8FDP3DYzQ4RYfVAxAN3SVSiiO77gL2j2ronKKP0syM=
github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/toml v0.4.1 h1:GaI7EiDXDRfa8VshkTj7Fym7ha+y8/XxIgD2okUIjLw=
github.com/BurntSushi/toml v0.4.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
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golang.org/x/tools v0.0.0-20191113191852-77e3bb0ad9e7/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191115202509-3a792d9c32b2/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191125144606-a911d9008d1f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191216173652-a0e659d51361/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20191227053925-7b8e75db28f4/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20200108203644-89082a384178/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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=
gonum.org/v1/gonum v0.0.0-20180816165407-929014505bf4/go.mod h1:Y+Yx5eoAFn32cQvJDxZx5Dpnq+c3wtXuadVZAcxbbBo=
gonum.org/v1/gonum v0.0.0-20181121035319-3f7ecaa7e8ca/go.mod h1:Y+Yx5eoAFn32cQvJDxZx5Dpnq+c3wtXuadVZAcxbbBo=
gonum.org/v1/gonum v0.6.0/go.mod h1:9mxDZsDKxgMAuccQkewq682L+0eCu4dCN2yonUJTCLU=
gonum.org/v1/netlib v0.0.0-20181029234149-ec6d1f5cefe6/go.mod h1:wa6Ws7BG/ESfp6dHfk7C6KdzKA7wR7u/rKwOGE66zvw=
gonum.org/v1/netlib v0.0.0-20190313105609-8cb42192e0e0/go.mod h1:wa6Ws7BG/ESfp6dHfk7C6KdzKA7wR7u/rKwOGE66zvw=
gonum.org/v1/plot v0.0.0-20190515093506-e2840ee46a6b/go.mod h1:Wt8AAjI+ypCyYX3nZBvf6cAIx93T+c/OS2HFAYskSZc=
google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
google.golang.org/api v0.13.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
google.golang.org/api v0.14.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
google.golang.org/api v0.15.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190716160619-c506a9f90610/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8=
google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20191115194625-c23dd37a84c9/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20191230161307-f3c370f40bfb/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/genproto v0.0.0-20200108215221-bd8f9a0ef82f/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.26.0-rc.1 h1:7QnIQpGRHE5RnLKnESfDoxm2dTapTZua5a0kS0A+VXQ=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
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=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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/go.mod h1:5AcXVHNjg+BDxry382+8OKon8SEWiKktQR07RKPsv1c=
gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200619000410-60c24ae608a6/go.mod h1:uAJfkITjFhyEEuUfm7bsmCZRbW5WRq8s9EY8HZ6hCns=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
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 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.5/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/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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=
go/proxyd/package.json 0 → 100644
View file @ 3ec03a23
{
"name": "@eth-optimism/proxyd",
"version": "0.0.1",
"private": true,
"dependencies": {}
}
go/proxyd/proxyd.go 0 → 100644
View file @ 3ec03a23
package proxyd
import (
"errors"
"fmt"
"github.com/ethereum/go-ethereum/log"
"github.com/prometheus/client_golang/prometheus/promhttp"
"net/http"
"os"
"os/signal"
"syscall"
"time"
)
func Start(config *Config) error {
backendsByName := make(map[string]*Backend)
groupsByName := make(map[string]*BackendGroup)
if len(config.Backends) == 0 {
return errors.New("must define at least one backend")
}
if len(config.BackendGroups) == 0 {
return errors.New("must define at least one backend group")
}
if len(config.MethodMappings) == 0 {
return errors.New("must define at least one method mapping")
}
for name, cfg := range config.Backends {
opts := make([]BackendOpt, 0)
if cfg.BaseURL == "" {
return fmt.Errorf("must define a base URL for backend %s", name)
}
if config.BackendOptions.ResponseTimeoutSeconds != 0 {
timeout := time.Duration(config.BackendOptions.ResponseTimeoutSeconds) * time.Second
opts = append(opts, WithTimeout(timeout))
}
if config.BackendOptions.MaxRetries != 0 {
opts = append(opts, WithMaxRetries(config.BackendOptions.MaxRetries))
}
if config.BackendOptions.MaxResponseSizeBytes != 0 {
opts = append(opts, WithMaxResponseSize(config.BackendOptions.MaxResponseSizeBytes))
}
if config.BackendOptions.UnhealthyBackendRetryIntervalSeconds != 0 {
opts = append(opts, WithUnhealthyRetryInterval(config.BackendOptions.UnhealthyBackendRetryIntervalSeconds))
}
if cfg.Password != "" {
opts = append(opts, WithBasicAuth(cfg.Username, cfg.Password))
}
backendsByName[name] = NewBackend(name, cfg.BaseURL, opts...)
log.Info("configured backend", "name", name, "base_url", cfg.BaseURL)
}
for groupName, cfg := range config.BackendGroups {
backs := make([]*Backend, 0)
for _, backName := range cfg.Backends {
if backendsByName[backName] == nil {
return fmt.Errorf("undefined backend %s", backName)
}
backs = append(backs, backendsByName[backName])
log.Info("configured backend group", "name", groupName)
}
groupsByName[groupName] = &BackendGroup{
Name: groupName,
backends: backs,
}
}
mappings := make(map[string]*BackendGroup)
for method, groupName := range config.MethodMappings {
if groupsByName[groupName] == nil {
return fmt.Errorf("undefined backend group %s", groupName)
}
mappings[method] = groupsByName[groupName]
}
methodMappings := NewMethodMapping(mappings)
srv := NewServer(methodMappings, config.Server.MaxBodySizeBytes)
if config.Metrics.Enabled {
addr := fmt.Sprintf("%s:%d", config.Metrics.Host, config.Metrics.Port)
log.Info("starting metrics server", "addr", addr)
go http.ListenAndServe(addr, promhttp.Handler())
}
go func() {
if err := srv.ListenAndServe(config.Server.Host, config.Server.Port); err != nil {
log.Crit("error starting server", "err", err)
}
}()
sig := make(chan os.Signal, 1)
signal.Notify(sig, syscall.SIGINT, syscall.SIGTERM)
recvSig := <-sig
log.Info("caught signal, shutting down", "signal", recvSig)
return nil
}
go/proxyd/server.go 0 → 100644
View file @ 3ec03a23
package proxyd
import (
"encoding/json"
"errors"
"fmt"
"github.com/ethereum/go-ethereum/log"
"github.com/gorilla/mux"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
"io"
"io/ioutil"
"net/http"
"time"
)
var (
httpRequestsCtr = promauto.NewCounter(prometheus.CounterOpts{
Namespace: "proxyd",
Name: "http_requests_total",
Help: "Count of total HTTP requests.",
})
httpRequestDurationHisto = promauto.NewHistogram(prometheus.HistogramOpts{
Namespace: "proxyd",
Name: "http_request_duration_histogram_seconds",
Help: "Histogram of HTTP request durations.",
Buckets: []float64{
0,
0.1,
0.25,
0.75,
1,
},
})
rpcRequestsCtr = promauto.NewCounterVec(prometheus.CounterOpts{
Namespace: "proxyd",
Name: "rpc_requests_total",
Help: "Count of RPC requests.",
}, []string{
"method_name",
})
blockedRPCsCtr = promauto.NewCounterVec(prometheus.CounterOpts{
Namespace: "proxyd",
Name: "blocked_rpc_requests_total",
Help: "Count of blocked RPC requests.",
}, []string{
"method_name",
})
rpcErrorsCtr = promauto.NewCounterVec(prometheus.CounterOpts{
Namespace: "proxyd",
Name: "rpc_errors_total",
Help: "Count of RPC errors.",
}, []string{
"error_code",
})
)
type RPCReq struct {
JSONRPC string `json:"jsonrpc"`
Method string `json:"method"`
Params json.RawMessage `json:"params"`
ID *int `json:"id"`
}
type RPCRes struct {
JSONRPC string `json:"jsonrpc"`
Result interface{} `json:"result,omitempty"`
Error *RPCErr `json:"error,omitempty"`
ID *int `json:"id"`
}
type RPCErr struct {
Code int `json:"code"`
Message string `json:"message"`
}
type Server struct {
mappings *MethodMapping
maxBodySize int64
}
func NewServer(mappings *MethodMapping, maxBodySize int64) *Server {
return &Server{
mappings: mappings,
maxBodySize: maxBodySize,
}
}
func (s *Server) ListenAndServe(host string, port int) error {
hdlr := mux.NewRouter()
hdlr.HandleFunc("/healthz", s.HandleHealthz).Methods("GET")
hdlr.HandleFunc("/", s.HandleRPC).Methods("POST")
addr := fmt.Sprintf("%s:%d", host, port)
server := &http.Server{
Handler: instrumentedHdlr(hdlr),
Addr: addr,
}
log.Info("starting HTTP server", "addr", addr)
return server.ListenAndServe()
}
func (s *Server) HandleHealthz(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("OK"))
}
func (s *Server) HandleRPC(w http.ResponseWriter, r *http.Request) {
body, err := ioutil.ReadAll(io.LimitReader(r.Body, s.maxBodySize))
if err != nil {
log.Error("error reading request body", "err", err)
rpcErrorsCtr.WithLabelValues("-32700").Inc()
writeRPCError(w, nil, -32700, "could not read request body")
return
}
req := new(RPCReq)
if err := json.Unmarshal(body, req); err != nil {
rpcErrorsCtr.WithLabelValues("-32700").Inc()
writeRPCError(w, nil, -32700, "invalid JSON")
return
}
if req.JSONRPC != JSONRPCVersion {
rpcErrorsCtr.WithLabelValues("-32600").Inc()
writeRPCError(w, nil, -32600, "invalid json-rpc version")
return
}
group, err := s.mappings.BackendGroupFor(req.Method)
if err != nil {
rpcErrorsCtr.WithLabelValues("-32601").Inc()
blockedRPCsCtr.WithLabelValues(req.Method).Inc()
log.Info("blocked request for non-whitelisted method", "method", req.Method)
writeRPCError(w, req.ID, -32601, "method not found")
return
}
backendRes, err := group.Forward(body)
if err != nil {
log.Error("error forwarding RPC request", "group", group.Name, "method", req.Method, "err", err)
rpcErrorsCtr.WithLabelValues("-32603").Inc()
msg := "error fetching data from upstream"
if errors.Is(err, ErrBackendsInconsistent) {
msg = ErrBackendsInconsistent.Error()
}
writeRPCError(w, req.ID, -32603, msg)
return
}
enc := json.NewEncoder(w)
if err := enc.Encode(backendRes); err != nil {
log.Error("error encoding response", "err", err)
return
}
rpcRequestsCtr.WithLabelValues(req.Method).Inc()
log.Debug("forwarded RPC method", "method", req.Method, "group", group.Name)
}
func writeRPCError(w http.ResponseWriter, id *int, code int, msg string) {
enc := json.NewEncoder(w)
w.WriteHeader(200)
body := &RPCRes{
ID: id,
Error: &RPCErr{
Code: code,
Message: msg,
},
}
if err := enc.Encode(body); err != nil {
log.Error("error writing RPC error", "err", err)
}
}
func instrumentedHdlr(h http.Handler) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
httpRequestsCtr.Inc()
start := time.Now()
h.ServeHTTP(w, r)
dur := time.Since(start)
httpRequestDurationHisto.Observe(float64(dur) / float64(time.Second))
}
}
package.json
View file @ 3ec03a23
...@@ -10,7 +10,8 @@ ...@@ -10,7 +10,8 @@
"integration-tests", "integration-tests",
"specs", "specs",
"go/gas-oracle", "go/gas-oracle",
"go/batch-submitter" "go/batch-submitter",
"go/proxyd"
], ],
"nohoist": [ "nohoist": [
"examples/*" "examples/*"
......
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