fix(logging): reading empty body when extracting request data

[gazorby]

Fixes "Error in logging before-send handler!" error that occurs when extracting request data with an empty body.

Closes #208

This fixes simple cases like the following:

from starlite import Controller, NotAuthorizedException, Starlite, post
from starlite_saqlalchemy import ConfigureApp, PluginConfig


class MyController(Controller):
    path: str = "/api"

    @post(path="/")
    async def handle_post(self) -> str:
        raise NotAuthorizedException()

starlite_saqlalchemy_config = PluginConfig(do_worker=False, do_sentry=False)

app = Starlite(
    route_handlers=[MyController],
    on_app_init=[ConfigureApp(config=starlite_saqlalchemy_config)],
)

Where logging currently shows:

2023-01-07T20:56:37.464647Z [error    ] Error in logging before-send handler!
NoneType: None

Instead of something like:

2023-01-07T21:07:29.957873Z [info     ] HTTP                           request={'path': '/api', 'method': 'POST', 'content_type': ('application/x-www-form-urlencoded', {}), 'headers': {'host': 'localhost:7755', 'user-agent': 'curl/7.87.0', 'accept': '*/*', 'content-length': '15', 'content-type': 'application/x-www-form-urlencoded'}, 'cookies': {}, 'query': b'', 'path_params': {}, 'body': None} response={'status_code': 401, 'cookies': {}, 'headers': {'content-type': 'application/json', 'content-length': '43'}, 'body': b'{"status_code":401,"detail":"Unauthorized"}'}

[peterschutt]

thanks @gazorby!

[peterschutt]

What is the .tool-versions file for? You happy if I .gitignore that?

[gazorby]

Oh sorry didn't want to push that!
It's a configuration file for asdf-vm because I'm still using python 3.10 on my system. It allows me to use 3.11 when working on this project ;)

[peterschutt]

OK, cool. I use pyenv for similar but the mulit-tool aspect of that sounds interesting!