CODE EXAMPLE FOR JAVASCRIPT

Create Nodejs logger that does not replace file when app/server restarts

const { Console } = require('console'); // get the Console class
const fs = require('fs'); // get fs module for creating write streams

// make a new logger
const eventsLogger = new Console({
  stdout: fs.createWriteStream('logs/eventsLog.txt', {
    flags: 'a+',
  }), // a write stream (normal log outputs)
  stderr: fs.createWriteStream('logs/eventsErrorLog.txt', {
    flags: 'a+',
  }), // a write stream (error outputs)
});

eventsLogger.log("Normal logged message");
eventsLogger.error('Error in connecting to database');