gc-json-logger

Logger to enable structured logging in GKE powered projects

Allows printing structured logs to stdout, stderr for further action in Google Cloud platform. Given that log agent ingests logs from stdout streams when running in GKE.

Precaution

A logger makes use of async_hooks module which is currently experimental. However, the use of async_hooks mechanism was at basic.

Installation

npm install --save gc-json-logger

yarn add gc-json-logger

View in Google Cloud Logging

Integration

const { Logger } = require('gc-json-logger');

const app = Logger.getLogger('app');

app.info('main'); // Logs as "app"
Logger.getLogger().info('main'); // Logs as "app"
Logger.getLogger('app').info('main'); // Logs as "app"

setTimeout(() => {
  const id = 'abc';
  const logger = Logger.getLogger(id);
  logger.info('context'); // Logs as "id"
  Logger.getLogger().info('context'); // Logs as "id"
  Logger.getLogger(id).info('context'); // Logs as "id"

  const custom = Logger.getLogger('custom');
  custom.info('context'); // Logs as "custom"
});