Log incoming and outgoing requests

[marcelmatko]

Hi.

I was wondering if it's possible to somehow log incoming requests (payload, headers, method, etc.) on a certain endpoint or all endpoints and then also outgoing requests (which are called in a service layer from the route handler). If so, how should I approach this?

Thanks in advance :)

[RobinTail]

Sure, @marcelmatko . You'd need a middleware to log requests and a custom result handler to log responses.
Both entities have access to the logger argument in their handler.
Please refer to the corresponding documentation for examples:

1. Middlewares: https://ez.robintail.cz/v21.10.0/middlewares
2. ResultHandler: https://ez.robintail.cz/v21.10.0/response-customization

[RobinTail]

Alright then, @marcelmatko .
The ctx prop is exposed in version 21.11.0 — publishing right now 🚀

[marcelmatko]

Perfect! Thank you, I really appreciate it.

[marcelmatko]

@RobinTail one more question.
Is it possible that I initialize my services with logger (BuiltinLogger) once when the application/server starts up and then reuse those instances (or which the specific ones that I want) in route handlers, service layers or even in my resultHandler rather than creating new instance for every request?

[RobinTail]

Hello @marcelmatko ,

if you have childLoggerProvider specified in your config, then it's called for every request, assigning the given child logger as logger within every handler that process the request (middlewares, endpoint, result handler).

If you're using the BuiltinLogger, the way for creating the child logger is the .child() method, that makes a new instance of the class.

In case for some reason you want it differently, you can implement your own logger or use any compatible well-known implementation:
https://ez.robintail.cz/v21.11.0/customizing-logger

[marcelmatko]

I managed to find a solution, thanks.