Bunyan quickstart

Demonstrates how to set up Bunyan in a Node.js application.

Explore further

For detailed documentation that includes this code sample, see the following:

• Setting Up Cloud Logging for Node.js

Code sample

Node.js

To learn how to install and use the client library for Logging, see Logging client libraries.

To authenticate to Logging, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

const bunyan = require('bunyan');

// Imports the Google Cloud client library for Bunyan
const {LoggingBunyan} = require('@google-cloud/logging-bunyan');

// Creates a Bunyan Cloud Logging client
const loggingBunyan = new LoggingBunyan();

// Create a Bunyan logger that streams to Cloud Logging
// Logs will be written to: "projects/YOUR_PROJECT_ID/logs/bunyan_log"
const logger = bunyan.createLogger({
  // The JSON payload of the log as it appears in Cloud Logging
  // will contain "name": "my-service"
  name: 'my-service',
  streams: [
    // Log to the console at 'info' and above
    {stream: process.stdout, level: 'info'},
    // And log to Cloud Logging, logging at 'info' and above
    loggingBunyan.stream('info'),
  ],
});

// Writes some log entries
logger.error('warp nacelles offline');
logger.info('shields at 99%');

What's next

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