@carlosbajo/roket-micro/lib/loggerTransport.js

framework para microservicios con google/pubsub

const winston = require('winston');
const transport = require('@google-cloud/logging-winston');

const transports = { transports: [], rewriters: [], filters: [] };
const response = (app, nameOfKey) => {
  if (nameOfKey) {
    const opt = (process.env.GOOGLE_SERVICE) ? { resource: { type: 'service_account', labels: { email_id: app.config.default[nameOfKey].client_email } } } : { resource: 'global' }; // TODO get the correct value of config
    winston.add(transport, opt);
  } else {
    winston.add(transport);
  }
  transports.transports.push(new winston.transports.Console({
    label: 'koa2-logger',
    timestamp: true,
    handleExceptions: true,
    humanReadableUnhandledException: true
  }));
  return winston;
};

module.exports = response;