Download Google Cloud Trace as JSON

go.mod

module github.com/q42philips/trace-export

go 1.19

require cloud.google.com/go/trace v1.8.0

require (
	cloud.google.com/go/compute v1.14.0 // indirect
	cloud.google.com/go/compute/metadata v0.2.3 // indirect
	github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
	github.com/golang/protobuf v1.5.2 // indirect
	github.com/google/go-cmp v0.5.9 // indirect
	github.com/googleapis/enterprise-certificate-proxy v0.2.1 // indirect
	github.com/googleapis/gax-go/v2 v2.7.0 // indirect
	go.opencensus.io v0.24.0 // indirect
	golang.org/x/net v0.0.0-20221014081412-f15817d10f9b // indirect
	golang.org/x/oauth2 v0.0.0-20221014153046-6fdb5e3db783 // indirect
	golang.org/x/sys v0.0.0-20220728004956-3c1f35247d10 // indirect
	golang.org/x/text v0.5.0 // indirect
	google.golang.org/api v0.108.0 // indirect
	google.golang.org/appengine v1.6.7 // indirect
	google.golang.org/genproto v0.0.0-20230125152338-dcaf20b6aeaa // indirect
	google.golang.org/grpc v1.51.0 // indirect
	google.golang.org/protobuf v1.28.1 // indirect
)

main.go

package main

import (
	"context"
	"encoding/json"
	"os"

	trace "cloud.google.com/go/trace/apiv1"
	tracepb "cloud.google.com/go/trace/apiv1/tracepb"
)

// copied from https://pkg.go.dev/cloud.google.com/go/trace@v1.8.0/apiv1#Client.GetTrace
func main() {
	ctx := context.Background()
	c, err := trace.NewClient(ctx)
	if err != nil {
		panic(err)
	}
	defer c.Close()

	// See https://pkg.go.dev/cloud.google.com/go/trace/apiv1/tracepb#GetTraceRequest.
	req := &tracepb.GetTraceRequest{
		ProjectId: os.Getenv("PROJECT"),
		TraceId:   os.Getenv("TRACE"),
	}
	resp, err := c.GetTrace(ctx, req)
	if err != nil {
		panic(err)
	}

	// Output as JSON
	bytes, err := json.MarshalIndent(resp, "", "  ")
	if err != nil {
		panic(err)
	}
	os.Stdout.Write(bytes)
}