logger.js

'use strict'

// This is for winston < 3.0.0 (e.g. 2.4.0), unfortunately works
// differently in winston 3.0.0+
const winston = require('winston');

const logger = new (winston.Logger)({
    transports: [
        new (winston.transports.Console)({
            timestamp: function () {
                return (new Date()).toISOString();
            },
            json: true,
            // This makes sure each log entry is single line
            stringify: (obj) => JSON.stringify(obj)
        })
    ]
});

module.exports = logger;