Adding timestamps to all console messages

Question

I have a complete, deployed, Express-based project, with many console.log() and console.error() statements throughout. The project runs using forever, directing the st

Answer 1

If you wish, you may create a custom logger for your application by extending the Node's build in "Console" class. Kindly refer to the following implementation

"use strict";

const moment = require('moment');
const util = require('util');
const Console = require('console').Console;

class Logger extends Console {
    constructor(stdout, stderr, ...otherArgs) {
        super(stdout, stderr, ...otherArgs);
    }

    log(...args) {
        super.log(moment().format('D MMM HH:mm:ss'), '-', util.format(...args));
    }

    error(...args) {
        super.error(moment().format('D MMM HH:mm:ss'), '-', util.format(...args));
    }
}

module.exports = (function() {
    return new Logger(process.stdout, process.stderr); 
}());

After that, you may use it in your code as :

const logger = require('./logger');

logger.log('hello world', 123456);
logger.error('some error occurred', err);