Fastapi logging

How can I log a request with his params and headers ?. Something like this:

INFO 2020-08-13 13:36:33.494 uvicorn.protocols.http.h11_impl:send - 127.0.0.1:52660 - "GET /url1/url2/ HTTP/1.1" 400 params= {"some": value, "some1":value} headers={"header1": value}

I’m using loguru with fastapi and uvicorn.

[Delgan]

That happens because of colorize=True. Loguru will add ansi codes to colorize your logs. However, these codes are only transformed to colors while inside a terminal.

By default, if the colorize argument is not provided, Loguru tries to guess whether or not the sink (like sys.stderr or a file) supports ansi codes and strip them out if it doesn’t. However as you specified colorize=True, Loguru will add them anyway. That’s why you’re seeing such symbols in your file.

You can set colorize=False or just plainly omit this parameter and it should work fine. 😉

[Delgan]

Indeed, but look at where the format_record is used in the snippet you shared:

logger.configure(
    handlers=[{"sink": sys.stdout, "level": logging.DEBUG, "format": format_record}]
)

This custom format is only used to configure the sys.stdout handler. If you want the same format for the logs emitted to your file, you need to specify it while adding the file handler too. For example:

logger.add("log/access.log", format=format_record, enqueue=True , backtrace=True, diagnose=True)