triathlon-logging/index.js

A global logging library for the Triathlon system.

const pino = require('pino');
const path = require('node:path');
const os = require('node:os');


let transport;

if (process.env.TRIATHLON_LOGGER_URI != null) {
  transport = pino.transport({
    targets: [
      {
        target: 'pino-mongodb',
        options: {
          uri: process.env.TRIATHLON_LOGGER_URI,
          database: 'log',
          collection: 'logs',
          mongoOptions: { }
        }
      },
      {
        target: './pino-pretty-transport',
        options: {
          translateTime: "SYS:m/d/yyyy, h:MM:ss.l TT",
        },
      }
    ],
  })
} else {
  transport = pino.transport({
    target: './pino-pretty-transport',
    options: {
      translateTime: "SYS:m/d/yyyy, h:MM:ss.l TT",
    },
  })
}


var logger = pino(
  {
    name: __filename.slice(__dirname.length + 1),
    timestamp: () => `,"timestamp":"${new Date(Date.now()).toISOString()}"`,
    level: process.env.LOG_LEVEL || 'trace',
    base: {pid: process.pid, hostname: (process.env.KUBERNETES_SERVICE_HOST != null) ? os.hostname() : path.basename(__dirname)},
  },
  transport
);

module.exports = { logger };