[epociask/debug] Debugging bridge processor

.vscode/launch.json

+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+
+            "type": "go",
+            "request": "launch",
+            "name": "Launch Program",
+            "program": "${workspaceFolder}/indexer/cmd/indexer",
+            "mode": "debug",
+            "env": {
+                "INDEXER_CONFIG": "/Users/ethen.pociask@coinbase.com/coinbase/indexer.toml"
+            },
+            "args": [
+                "index"
+            ]
+        }
+    ]
+}

indexer/database/blocks.go

@@ -8,6 +8,7 @@ import (
 	"github.com/ethereum-optimism/optimism/indexer/bigint"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/log"
 
 	"gorm.io/gorm"
 )
@@ -200,6 +201,7 @@ func (db *blocksDB) LatestObservedEpoch(fromL1Height *big.Int, maxL1Range uint64
 		result := db.gorm.Where(l1QueryFilter).Order("timestamp DESC").Take(&l1Header)
 		if result.Error != nil {
 			if errors.Is(result.Error, gorm.ErrRecordNotFound) {
+				log.Warn("Could not fetch latest L1 block header in bridge processor")
 				return nil, nil
 			}
 			return nil, result.Error
@@ -211,6 +213,7 @@ func (db *blocksDB) LatestObservedEpoch(fromL1Height *big.Int, maxL1Range uint64
 		result = db.gorm.Where("timestamp <= ?", toTimestamp).Order("timestamp DESC").Take(&l2Header)
 		if result.Error != nil {
 			if errors.Is(result.Error, gorm.ErrRecordNotFound) {
+				log.Warn("Could not fetch latest L2 block header in bridge processor")
 				return nil, nil
 			}
 			return nil, result.Error
@@ -233,6 +236,7 @@ func (db *blocksDB) LatestObservedEpoch(fromL1Height *big.Int, maxL1Range uint64
 	result := query.Take(&epoch)
 	if result.Error != nil {
 		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
+			log.Warn("Could not fetch latest observed epoch in bridge processor")
 			return nil, nil
 		}
 		return nil, result.Error