here will be the logger that all the micro services will use to output their logs to winston and logzio. There are 2 ways to use the logger after installing the npm package:

1. logger.debug({ message: 'Hey! Log something?',division: "Notification MicroService"}); explanation: logger.debug => debug is the level of the log, all the levels written at the end. message => added info to the bug (example: Error occurred in the HTTP request). division => where the bug happened(example: Notification MicroService).

2. logger.error(new Error("message")) / try{}catch{err => logger.error(err)}, This format record stack trace.
   explanation: logger.error => error is the level of the log, all the levels written at the end. message => added info to the bug (example: Error occurred in the HTTP request).

log levels from high to low: error: 0, warn: 1, info: 2, http: 3, verbose: 4, debug: 5, silly: 6