winston-logzio integration with winston in nodejs

logger.js

/**
 * Created by shahartaite on 12/09/2016.
 */
const winston = require('winston');
const logzioWinstonTransport = require('winston-logzio');
const loggerOptions = {
    token: 'YOUR_TOKEN',
    host: 'listener.logz.io',
    type: 'nodejs'     // if you integrate any other services with logz.io such 
                       // as your clientside logs you can differentiate using this property
};

winston.emitErrs = true;

const logger = new winston.Logger({
    transports: [ 
        new winston.transports.File({ // example of a normal transport for winston writing logs to file
            level: 'error',
            filename: 'mylogs.txt',
            handleExceptions: true,
            json: false,
            maxsize: 5242880, //5MB
            maxFiles: 5,
            colorize: true,
        }),
        new winston.transports.Console({ // example of a normal transport for winston writing logs to console
            level: 'debug',
            handleExceptions: true,
            json: false,
            colorize: true,
            prettyPrint: true,
        }),
    ],
    exitOnError: false
});
const env = process.env.NODE_ENV || 'dev'; // these next couple of lines make sure you don't
                                           //send logs to logz.io whilst in development mode
if(env === 'production') {
    logger.add(logzioWinstonTransport, loggerOptions); // add another transport with the logz.io configuration from the top
}

module.exports = logger;