docs: Added information about the JSON-like logging format for the standard library

[RenameMe1]

Description

• I added json format string example in Using Python standard library section
• I added information about format string style for LogginConfig

Closes

#3827

[github-actions]

Documentation preview will be available shortly at https://litestar-org.github.io/litestar-docs-preview/3990

[RenameMe1]

A friendly ping @provinzkraut. Could you help me get a review for this PR?

[provinzkraut]

Not sure if this belongs in the Litestar logging tutorial, as it strictly deals with stdlib logging configuration. Maybe it would be better to link to the stdlib logging docs?

[RenameMe1]

Not sure if this belongs in the Litestar logging tutorial, as it strictly deals with stdlib logging configuration. Maybe it would be better to link to the stdlib logging docs?

There are no such examples in the stdlib logging documentation. They are also not listed in the stdlib cookbook.

Maybe I can create a for litestar.logging.config.py the 'JsonFormat` class that will return a string in json format? Usage example:

from litestar import Litestar, Request, get
from litestar.logging import LoggingConfig, JsonFormat


@get("/")
def my_router_handler(request: Request) -> None:
    request.logger.info("inside a request")
    return None


logging_config = LoggingConfig(
    root={"level": "INFO", "handlers": ["queue_listener"]},
    formatters={
        "standard": {"format": JsonFormat(["%(asctime)s", "%(name)s", "%(levelname)s", "%(message)s"])} # {'asctime': '%(asctime)s', 'name': ' %(name)s', 'levelname': ' %(levelname)s', 'message': ' %(message)s'}
    },
    log_exceptions="always",
)

app = Litestar(route_handlers=[my_router_handler], logging_config=logging_config)

I think this is a useful feature.

[provinzkraut]

There are no such examples in the stdlib logging documentation. They are also not listed in the stdlib cookbook.

Sounds to me like you should make a PR to the stdlib docs then :)
If this is a generally good thing to know, and not specific to Litestar, others might benefit from it as well!

[RenameMe1]

Thanks for feedback. It's was very usefull