baphomet-js/bot/logging.js

let winston = require('winston');

let logger = winston.createLogger({
    level: 'info',
    format: winston.format.combine(
        winston.format.timestamp(),
        winston.format.splat(),
        winston.format.json()
    ),
    defaultMeta: { service: 'baphomet-js' },
    transports: [
        new winston.transports.File({ filename: 'log/error.log', level: 'error' }),
        new winston.transports.File({ filename: 'log/combined.log' })
    ]
});

if (process.env.NODE_ENV !== 'production') {
    logger.add(new winston.transports.Console({
        format: winston.format.combine(
            winston.format.simple()
        )
    }));
} else {
    logger.add(new winston.transports.Console({
        level: 'error',
        format: winston.format.combine(
            winston.format.simple()
        )
    }));
}

if ('LOG_LEVEL' in process.env) {
    logger.info('LOG_LEVEL: %s', process.env.LOG_LEVEL)
    logger.level = process.env.LOG_LEVEL
}

exports.logger = logger;