Winston quickstart file with a daily rotating log file, colorization, timestamp prefix, and log level prefix

logger.js

// PACKAGES
const winston = require('winston');
const { format } = require('logform');
require('winston-daily-rotate-file');

const simpleTimestampAndLevel = format.printf(({ level, message, timestamp }) => {
    return `${timestamp} ${level}: ${message}`;
});

const simpleLevel = format.printf(({ level, message }) => {
    return `${level}: ${message}`;
});

const logger = winston.createLogger({
    transports: [
        new winston.transports.Console({
            format: format.combine(
                format.colorize(),
                simpleLevel
            ),
            level: 'debug'
        }),
        new winston.transports.DailyRotateFile({
            filename: './logs/%DATE%.log',
            datePattern: 'YYYY-MM-DD',
            zippedArchive: true,
            maxSize: '20m',
            maxFiles: '14d',
            format: format.combine(
                format.timestamp(),
                simpleTimestampAndLevel
            ),
            level: 'silly'
        }),
    ]
});

module.exports = logger;