Winston - Node.js basic logging example

logging.js

const winston = require('winston');

var logger = winston.createLogger({
    level : 'info',
    format : winston.format.json(),
    transports : [
        new winston.transports.File({
            filename : 'logs/error.log',
            level : 'error'
        }),
        new winston.transports.File({
            filename : 'logs/combined.log'
        }),
        new winston.transports.Console()
    ]
});


var PORT_NUMBER = 4444;
logger.info("Console successfully started in port : "+ PORT_NUMBER);