TypeError: Class constructor TransportStream cannot be invoked without 'new'

Hi,

I’ve updated my npm dependencies this morning and my loggers can’t start anymore with winston-daily-rotate-file@3.2.0 and winston@3.0.0-rc6.

I have this error

TypeError: Class constructor TransportStream cannot be invoked without 'new'
at new DailyRotateFile (/home/workspace/node_modules/winston-daily-rotate-file/daily-rotate-file.js:32:15)

When i set up my loggers

const logger = winston.createLogger({
  level: LOG_LEVEL,
  levels: logLevels.levels,
  format: fileFormat,
  transports: [
    new DailyRotateFile({ filename: path.join(LOGS_DIR, 'error.log'), datePattern: 'YYYY-MM-DD', level: 'error', handleExceptions: true, maxSize: '20m', maxFiles: '2d', zippedArchive: true, datePattern: 'YYYY-MM-DD-HH'}),
    new DailyRotateFile({ filename: path.join(LOGS_DIR, 'silly.log'), datePattern: 'YYYY-MM-DD', level: 'silly', maxSize: '20m', maxFiles: '2d', zippedArchive: true, datePattern: 'YYYY-MM-DD-HH' }),
    new DailyRotateFile({ filename: path.join(LOGS_DIR, 'combined.log'), datePattern: 'YYYY-MM-DD', level: LOG_LEVEL, maxSize: '20m', maxFiles: '2d', zippedArchive: true, datePattern: 'YYYY-MM-DD-HH' })
  ]
});

winston@3.0.0-rc6 needs winston-transport@^4.0.0 and the error occurs in winston-daily-rotate-file when calling

Transport.call(this, options);

Looks like there is an issue with winston-transport. Maybe i’m not setting up thing in the right way, but it was working so far. My previous version of winston was @next, so i can’t tell what was my real version of winston. Reproduced on two different machines with Node version 8.9.4 or 9.5.0

Can you reproduce the issue ?

Regards.

---

Edit: searching in my git history and according to publish dates, i think my working version was winston@3.0.0-rc5 with winston-transport@^3.1.0

[mattberther]

Resolved with https://github.com/winstonjs/winston-daily-rotate-file/commit/f6e809c328432dce2af172dc8e98f998935ca39a and pushed to npm as winston-daily-rotate-file@3.2.1.

[ChrisAlderson]

This is because as of winston-transport@4.0.0 is using ES6-classes and since winston-daily-rotate-file requires winston-transport through winston we get this error.

Solution should be to add winston-transport@3.2.1 as a dependecy in package.json.