Add basic logger to an existing nestjs project

[inigomarquinez]

Nest comes with a built-in text-based logger which is used during application bootstrapping and several other circumstances such as displaying caught exceptions (i.e., system logging). This functionality is provided via the Logger class in the @nestjs/common package.

But you can provide a custom logger implementation to be used by Nest for system logging by setting the value of the logger property to an object that fulfills the LoggerService interface. We can use this feature to improve the logging system.

We may also include a middleware to log the HTTP requests. e.g. morgan

NestJS documentation.

https://docs.nestjs.com/techniques/logger