Why HTTPException gets sent as exception?

[Kludex]

Why starlette.exceptions.HTTPException and fastapi.exceptions.HTTPException is sent as event to sentry?

[smeubank]

heyyyy @Kludex 👋

do you have a specific example? It's turned on with the integrations by default, we will have to check if this is only happening with Starlette and FastAPI integrations. Checking some older discussion, potentially related. It seems this is not always the case. Are the exceptions associated with any specific status code? Can you provide an example event that is sent, and the init setup you have for that python app?

#642

[Kludex]

Hey Steven! 👋 😁

Yeah:

from fastapi import HTTPException, FastAPI

app = FastAPI()

@app.get('/')
async def health():
    raise HTTPException(status_code=502, detail='potato')

I'm just trying to understand why HTTPException is not whitelisted.

[smeubank]

this does not generate an error event for sentry? Health checks are filtered out but that should only be for transactions AFAIK

I will forward this to the team, and see if anyone has a better idea.

[Kludex]

I have this enabled:

And the transaction is called /health:

What is missing for it to be filtered?

[sentrivana]

Hey @Kludex 👋🏻 We don't capture all HTTPExceptions, only those with a 500+ status code. This is a pattern in most web framework integrations we have since these 500+ HTTPExceptions usually wrap unhandled errors and/or are important to know about.

[sentrivana]

If anyone wants to fine-tune this, before_send can be used to drop unwanted events before they're sent to Sentry.

[sentrivana]

We've just shipped an improvement in https://github.com/getsentry/sentry-python/releases/tag/2.5.0 that enables you to pick which HTTP status codes to report to Sentry. Check out the failed_request_status_code option in the docs.

[Kludex]

Does it help here, tho? I want to see 500s, but not when I raise with HTTPException...

[sentrivana]

Gotcha now @Kludex -- no in that case it doesn't help. You can still drop unwanted events in a custom before_send though.