2021-02-015_src_index_part3.js

// File: src/index.js
const logger = tag =>
    winston.createLogger({
        levels: logLevels,
        transports: [new winston.transports.Console({ colorize: true, timestamp: true })],
        format: winston.format.combine(
            winston.format.colorize(),
            winston.format.padLevels({ levels: logLevels }),
            winston.format.timestamp(),
            winston.format.printf(info => `${info.timestamp} ${info.level}: ${tag}${info.message}`),
        ),
        level: 'debug',
    })