Sending traceback with Django Ninja

[Lodimup]

Question

Is it possible to send traceback along with the log? I am using Django.

This is the log I want to send along with with the log

Simulate unhandled exception
Traceback (most recent call last):
  File "/workspaces/gateway/.venv/lib/python3.12/site-packages/ninja/operation.py", line 120, in run
    result = self.view_func(request, **values)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/workspaces/gateway/app/appcore/routes/sample.py", line 135, in get_simulate_unhandled_exception
    raise Exception("Simulate unhandled exception")
Exception: Simulate unhandled exception

[alexmojaki]

With plain Django this already works. It seems that your problem is specific to Ninja. This seems to work:

from ninja import NinjaAPI

import logfire

api = NinjaAPI()

original_handler = api._lookup_exception_handler(Exception())


@api.exception_handler(Exception)
def validation_errors(request, exc):
    logfire.exception('Unhandled exception')
    return original_handler(request, exc)

[Lodimup]

Thank you! I couldn't get it to work with the current setup, will investigate more based on your suggestions.

[Lodimup]

The team got it working thank you!

Edited topic for clarity in case other people have the same issue.

[alexmojaki]

Reopening because this should probably be incorporated into the SDK.

Also note that instead of logfire.exception('Unhandled exception') you could try:

from opentelemetry.trace import get_current_span

get_current_span().record_exception(exc)

which should put the exception directly on the request span instead of creating a child log. Does that work better?

[Br1an67]

I'd like to work on this. The approach patches NinjaAPI.on_exception to record exceptions on the current OpenTelemetry span before Django Ninja handles them, matching how the OTel Django middleware would capture exceptions in plain Django views.

PR: #1746