Setting Up Error Reporting for Go

You can send error reports to Stackdriver Error Reporting from Go applications by using the Stackdriver Error Reporting package for Go.

Error Reporting is integrated with some Google Cloud Platform products, such as App Engine, Compute Engine, and Google Kubernetes Engine. Error Reporting displays the errors that are logged to Stackdriver Logging by applications running on those products. See Running on Google Cloud Platform for more information.

You can also send error data to Error Reporting using Stackdriver Logging. For information on the data formatting requirements, see Formatting error messages in Stackdriver Logging.

Before you begin

  1. Sign in to your Google Account.

    If you don't already have one, sign up for a new account.

  2. Select or create a Google Cloud Platform project.

    Go to the Manage resources page

  3. Make sure that billing is enabled for your Google Cloud Platform project.

    Learn how to enable billing

  4. Enable the Error Reporting API API.

    Enable the API

Installing the client library

Stackdriver Error Reporting package for Go lets you monitor and view errors reported by Go applications running nearly anywhere.

  1. Use go get to install the package:

    go get -u cloud.google.com/go/errorreporting

For more information on installation, see the documentation for the Stackdriver Error Reporting package for Go. You can also report issues using the issue tracker.

Configuring the client library

You can customize the behavior of the Stackdriver Error Reporting package for Go. See the godoc.

Reporting errors

// Sample errorreporting_quickstart contains is a quickstart
// example for the Google Cloud Error Reporting API.
package main

import (
	"context"
	"log"
	"net/http"

	"cloud.google.com/go/errorreporting"
)

var errorClient *errorreporting.Client

func main() {
	ctx := context.Background()

	// Sets your Google Cloud Platform project ID.
	projectID := "YOUR_PROJECT_ID"

	var err error
	errorClient, err = errorreporting.NewClient(ctx, projectID, errorreporting.Config{
		ServiceName: "myservice",
		OnError: func(err error) {
			log.Printf("Could not log error: %v", err)
		},
	})
	if err != nil {
		log.Fatal(err)
	}
	defer errorClient.Close()

	resp, err := http.Get("not-a-valid-url")
	if err != nil {
		logAndPrintError(err)
		return
	}
	log.Print(resp.Status)
}

func logAndPrintError(err error) {
	errorClient.Report(errorreporting.Entry{
		Error: err,
	})
	log.Print(err)
}

See the godoc for more examples of how to report panics and errors.

Running on Google Cloud Platform

Using the Stackdriver Error Reporting package for Go requires the Cloud IAM Error Reporting Writer role. Most Google Cloud Platform computing platforms provide this role by default.

App Engine flexible environment

App Engine grants the Error Reporting Writer role by default.

The Stackdriver Error Reporting package for Go can be used without needing to explicitly provide credentials.

Error Reporting is automatically enabled for App Engine flexible environment applications. No additional setup is required.

GKE

On GKE, you must add the cloud-platform access scope when creating the cluster, as the following example command shows:

gcloud container clusters create example-cluster-name --scopes https://www.googleapis.com/auth/cloud-platform

Compute Engine

When using Compute Engine VM instances, add the cloud-platform access scope to each instance. When creating a new instance through the Google Cloud Platform Console, you can do this in the Identity and API access section of the Create Instance panel. Use the Compute Engine default service account or another service account of your choice, and select Allow full access to all Cloud APIs in the Identity and API access section. Whichever service account you select, ensure that it has been granted the Error Reporting Writer role in the IAM & admin section of the GCP Console.

Running locally and elsewhere

To use the Stackdriver Error Reporting package for Go outside of Google Cloud Platform, you must supply your GCP project ID and appropriate service account credentials directly to the Stackdriver Error Reporting package for Go. This applies to running the library on your own workstation, on your data center's computers, or on the VM instances of another cloud provider. For more information see Obtaining and providing service account credentials manually.

Viewing error reports

After deployment, you can view error reports in the GCP Console Error Reporting dashboard.

Go to the Error Reporting dashboard

For more information, see Viewing Errors.

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