Catch exception type of Exception and process body request

[Hedgehogues]

Description

How can I catch exception type of Exception and process body request?

Additional context

My example

@app.exception_handler(Exception)
async def exception_callback(request: requests.Request, exc: Exception):
request_json = await request.json() # Here i want a body, query_params, headers and path of request
print(request_json)

@app.post('/create_workflow')
async def create_workflow():
raise Exception(13)

[euri10]

mmm I'm not sure, but I don't think you can consume body in a middleware (see #394)

getting the other parameters you mentioned is possible though (note that the Request below is from starlette and not requests I think you imported the wrong one), but should you need the body that won't happen

I'd ask in Starlette if I were you

import pytest
from async_asgi_testclient import TestClient
from fastapi import FastAPI
from starlette.requests import Request

app = FastAPI()


@app.exception_handler(Exception)
async def exception_callback(request: Request, exc: Exception):
    print(request.query_params)
    print(request.headers)
    print(request.path_params)
    print(exc.args)


@app.post("/create_workflow")
async def create_workflow():
    raise Exception(13)


@pytest.mark.asyncio
async def test_raise_exc():
    async with TestClient(app) as client:
        with pytest.raises(Exception) as pe:
            response = await client.post("/create_workflow")

[Hedgehogues]

Yes, I saw it. But this code cannot extract body of request. Example of printing:

Headers({'host': 'localhost:8000', 'connection': 'keep-alive', 'content-length': '82', 'accept': 'application/json', 'origin': 'http://localhost:8000', 'user-agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36', 'content-type': 'application/json', 'referer': 'http://localhost:8000/docs', 'accept-encoding': 'gzip, deflate, br', 'accept-language': 'en-US,en;q=0.9', 'cookie': 'redirect_to=%252F'})

{}

(123,)

I cannot get body of request

[euri10]

yes as I pointed out in the above linked issue #394, this is not something you can achieve in a middleware.
you might want to read encode/starlette#495 (comment) as well and ask on Starlette

[tiangolo]

A new way to handle these cases was added in #589.

The docs are here: https://fastapi.tiangolo.com/tutorial/custom-request-and-route/

[github-actions]

Assuming the original issue was solved, it will be automatically closed now. But feel free to add more comments or create new issues.