Pino.js

logger.js

const pino = require('pino')
const dest = pino.destination()

const logger = pino({
  name: process.env.APPLICATION_NAME || 'my-app',
  level: process.env.LOG_LEVEL || 'info',
  useLevelLabels: true,
  base: {
  }
}, dest)

setInterval(function () {
  logger.flush()
}, 7000).unref()

const handler = pino.final(logger, (err, finalLogger, evt) => {
  finalLogger.info(`${evt} caught`)

  dest.flushSync()

  if (err) {
    finalLogger.error(err, 'error caused exit')
  }

  process.exit(err ? 1 : 0)
})

process.on('beforeExit', () => handler(null, 'beforeExit'))
process.on('exit', () => handler(null, 'exit'))
process.on('uncaughtException', (err) => handler(err, 'uncaughtException'))
process.on('SIGINT', () => handler(null, 'SIGINT'))
process.on('SIGQUIT', () => handler(null, 'SIGQUIT'))
process.on('SIGTERM', () => handler(null, 'SIGTERM'))

module.exports = { logger }