No colorize support in 3.0?

It doesn’t seem to be working.

logger = winston.createLogger({
  level: 'verbose',
  transports: [
    new WinstonDailyRotateFile({
      filename: './app-%DATE%.log',
      datePattern: 'YYYY-MM-DD',
      maxFiles: '3d',
      format: winston.format.colorize(),
    }),
  ],
});

[mattberther]

winston@3 does not set formats on the individual transports. Try this instead:

logger = winston.createLogger({
  level: 'verbose',
  format: winston.format.combine(
    winston.format.colorize({message: true}),
    winston.format.simple()
  ),
  transports: [
    new WinstonDailyRotateFile({
      filename: './app-%DATE%.log',
      datePattern: 'YYYY-MM-DD',
      maxFiles: '3d'
    }),
  ],
});

[indexzero]

@mattberther interesting. From an intention perspective, these two code blocks should be equivalent in winston@3. If they are not then it may be a bug:

single transport, format on logger

logger = winston.createLogger({
  level: 'verbose',
  format: winston.format.combine(
    winston.format.colorize({message: true}),
    winston.format.simple()
  ),
  transports: [
    new WinstonDailyRotateFile({
      filename: './app-%DATE%.log',
      datePattern: 'YYYY-MM-DD',
      maxFiles: '3d'
    }),
  ],
});

single transport, format on transport

logger = winston.createLogger({
  level: 'verbose',
  transports: [
    new WinstonDailyRotateFile({
      filename: './app-%DATE%.log',
      datePattern: 'YYYY-MM-DD',
      maxFiles: '3d',
      format: winston.format.combine(
        winston.format.colorize({message: true}),
        winston.format.simple()
      )
    }),
  ],
});

If you have a chance to dig in the relevant code is:

1. format set on TransportStream instances
2. format consumed in TransportStream.prototype._write