self._addDefaultMeta is not a function error still occurs with 3.2.1

Please tell us about your environment:

• winston version?
  • winston@2
  • winston@3
• node -v outputs: 11.6.0
• Operating System? OSX
• Language? ES6/7

What is the problem?

Seems like #1579 did not fully fix the _addDefaultMeta bug. After upgrading to winston 3.2.1 I still get this error in my app at https://github.com/winstonjs/winston/blob/efd7baf65da13edaba7829aa4339757eed4322eb/lib/winston/create-logger.js#L80

Full stack trace:

TypeError: self._addDefaultMeta is not a function
  at Object.DerivedLogger.(anonymous function) [as log] (/path/to/project/node_modules/winston/lib/winston/create-logger.js:80:14)
  at module.exports.<anonymous> (/path/to/project/node_modules/sequelize-fixtures/lib/writer.js:39:16)
  at module.exports.tryCatcher (/path/to/project/node_modules/bluebird/js/release/util.js:16:23)
  at module.exports.writeFile (/path/to/project/node_modules/bluebird/js/release/method.js:15:34)
  at updateReferences (/path/to/project/services/sample_data/index.js:919:6)
  at Object.import (/path/to/project/services/sample_data/index.js:961:13)

What do you expect to happen instead?

That my app does not crash with the above error

[tizmagik]

Another way I found that works is to bind:

const logHelper = {
  log: logger.info.bind(logger)
};

[indexzero]

Thanks for reporting this bug, but yes: the failure is by design. If you would like to create another object with it’s own properties that is still a logger, use Object.create (logger, extraProps)