debug cloud functions locally

Change-Id: I7fa072497b6e4b3980c88edb50481226f4ea3cad

event_database/cloud_functions/.vscode/launch.json

@@ -0,0 +1,20 @@
+{
+    // 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": [
+        {
+            "name": "start the server",
+            "type": "go",
+            "request": "launch",
+            "mode": "auto",
+            "program": "${workspaceFolder}/cmd/main.go",
+            "env": {
+                "GCP_PROJECT": "wormhole-315720",
+                "BIGTABLE_INSTANCE": "wormhole-mainnet",
+                "GOOGLE_APPLICATION_CREDENTIALS": "./bigtable-admin.json"
+            },
+        },
+    ]
+}

event_database/cloud_functions/cmd/main.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+
+	"github.com/GoogleCloudPlatform/functions-framework-go/funcframework"
+	p "github.com/certusone/wormhole/event_database/cloud_functions"
+)
+
+func main() {
+	ctx := context.Background()
+	if err := funcframework.RegisterHTTPFunctionContext(ctx, "/", p.Entry); err != nil {
+		log.Fatalf("funcframework.RegisterHTTPFunctionContext: %v\n", err)
+	}
+	// Use PORT environment variable, or default to 8080.
+	port := "8080"
+	if envPort := os.Getenv("PORT"); envPort != "" {
+		port = envPort
+	}
+	if err := funcframework.Start(port); err != nil {
+		log.Fatalf("funcframework.Start: %v\n", err)
+	}
+}

event_database/cloud_functions/go.mod

@@ -1,8 +1,15 @@
 module github.com/certusone/wormhole/event_database/cloud_functions
 
+go 1.16
+
 // cloud runtime is go 1.16. just for reference.
 
 require (
 	cloud.google.com/go/bigtable v1.10.1
-	google.golang.org/api v0.48.0
+	google.golang.org/api v0.48.0 // indirect
+)
+
+require (
+	github.com/GoogleCloudPlatform/functions-framework-go v1.3.0
+	github.com/certusone/wormhole/node v0.0.0-20211027001206-19628733285e
 )