Winston Logger

[priyansh32]

I have set up Winston logger in the project; we do not need to use console.log() as it is not suitable for production.

Instead of just logging in to the console, we can store required logs in a separate file in production. There are different services to host log files remotely. Saving logs will help us identify errors easily.

How to use winston logger?

• Import logger using URL src/services/logger relative to your file location.

• Winston has 7 different logging levels

const levels = { 
  error: 0,
  warn: 1,
  info: 2,
  http: 3,
  verbose: 4,
  debug: 5,
  silly: 6
};

You can use it like, logger.debug("GET api/events"), logger.error(err).
Use suitable level to log anything

• In the development environment, It will log all levels into the console in a nice coloured human-readable form
• In the production environment, It will log only the first three levels (error, warning and combined) in the console and a file; it will also save errors in a separate file.
• productions logs will be in more machine-readable form so that log visualisation tools can visualise them.