#277 — [Bug]: RuntimeError: Cannot call “send” once a close message has been sent.

Repo: Twill-AI/facade State: closed | Status: done Assignee: Unassigned

Created: 2025-01-22 · Updated: 2025-03-24

Description

Steps to reproduce

1. Create an integration in Facade in staging (might happen also in production).
2. Close the browser tab/window immediately.
3. Error is logged and call to Facade’s bdstate router fails from BusinessData.

Expected behavior

Invoking POST /tenants/{tenant_id}/bdintegrations/{bd_integration_id} shouldn’t be affected by errors when notifying users.

Actual behavior

It seems like, if the user’s websocket is disconnected, the following error is raised and the bdstate endpoint returns a failed response:

Error log

2025-01-17 04:00:47.771|ERROR|master|fastapi_utils:304|FINISH POST http://ca-prod-twill-eastus-facade/api/v1/master/bdstate/tenants/VMGCORP7j0/bdintegrations/1 took 0.086: duration=85ms exception in middlewares:
Traceback (most recent call last):
  File "/app/app/core/fastapi_utils.py", line 282, in __call__
    await self.app(scope, receive_wrapper, send_wrapper)
  File "/usr/local/lib/python3.12/site-packages/starlette/middleware/exceptions.py", line 62, in __call__
    await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
  File "/usr/local/lib/python3.12/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
    raise exc
  File "/usr/local/lib/python3.12/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
    await app(scope, receive, sender)
  File "/usr/local/lib/python3.12/site-packages/starlette/routing.py", line 715, in __call__
    

## Notes

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