pastel.codes/config/winston.js

var winston = require('winston');
var appRoot = require('app-root-path');

var logger = new winston.createLogger({
    transports: [
        new winston.transports.File({
            level: 'info',
            filename: `${appRoot}/logs/app.log`,
            handleExceptions: true,
            json: true,
            maxsize: 5242880, //5MB
            maxFiles: 5,
            colorize: false
        }),
        new winston.transports.Console({
            level: 'debug',
            handleExceptions: true,
            json: false,
            colorize: true
        })
    ],
    exitOnError: false
});

logger.stream = {
    write: function(message, encoding){
        logger.info(message);
    }
};
module.exports = logger