NodeJS-Winston

const winston = require('winston');

let initLoggerConfig = function (config) {
    /**
     * Create logger
     */
    let logger = new (winston.Logger)(config.logger),
        jobLogger = new(winston.Logger)(config.jobLogger);

    config.log = function () {
        logger.log(arguments);
    };

    config.info = function () {
        logger.info(arguments);
    };

    config.error = function () {
        logger.error(arguments);
    };

    config.debug = function () {
        logger.debug(arguments);
    };

    config.jobInfo = function () {
        jobLogger.info(arguments);
    };
    
    config.jobError = function () {
        jobLogger.error(arguments);
    };
};

const path = require('path'),
    winston = require('winston'),
    DailyRotateFile = require('winston-daily-rotate-file');
module.exports = {
    env: 'production',
    logger: {
        transports: [
            new winston.transports.Console({
                colorize: true
            }),
            new DailyRotateFile({
                level: 'silly',
                filename: path.resolve('./logs/access-'),
                datePattern: 'yyyy-MM-dd.log',
                maxsize: 5242880 /* 5MB */
            })
        ]
    },
    jobLogger: {
        transports: [
            new winston.transports.Console({
                colorize: true
            }),
            new DailyRotateFile({
                level: 'silly',
                filename: path.resolve('./logs/jobs-'),
                datePattern: 'yyyy-MM-dd.log',
                maxsize: 5242880 /* 5MB */
            })
        ]
    },
    showErrorStack: process.env.SHOW_ERROR_STACK === 'true',
    livereload: false
};

	let logger = new (winston.Logger)(config.logger)
	 
	let logger = new (winston.Logger)(
	{
        transports: [
            new winston.transports.Console({
                colorize: true
            }),
            new DailyRotateFile({
                level: 'silly', //         。0：error 1：warn 2：info 3：verbose 4：debug 5：silly 
                filename: path.resolve('./logs/access-'), //             。
                datePattern: 'yyyy-MM-dd.log',
                maxsize: 5242880 /* 5MB */
            })
        ]
    }
  )

config.info('        2。');
config.error('        3。');
config.debug('        4。');

{"level":"info","message":"{ '0': '        2。' }","timestamp":"2018-11-28T09:57:18.841Z"}
{"level":"error","message":"{ '0': '        3。' }","timestamp":"2018-11-28T09:57:18.843Z"}
{"level":"debug","message":"{ '0': '        4。' }","timestamp":"2018-11-28T09:57:18.843Z"}