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Fix async generator exception handling in database dependencies

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Lukas
2026-01-23 16:25:52 +01:00
parent faac14346f
commit 9fb93794e6
2 changed files with 102 additions and 16 deletions
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90
docs/instructions.md
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@@ -118,3 +118,93 @@ For each task completed:
---
## TODO List:
1. fix the exception
INFO: 127.0.0.1:36902 - "POST /api/anime/search HTTP/1.1" 200
INFO: 127.0.0.1:36902 - "POST /api/anime/add HTTP/1.1" 500
ERROR: Exception in ASGI application
Traceback (most recent call last):
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/anyio/streams/memory.py", line 98, in receive
return self.receive_nowait()
```^^
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/anyio/streams/memory.py", line 93, in receive_nowait
raise WouldBlock
anyio.WouldBlock
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/base.py", line 78, in call_next
message = await recv_stream.receive()
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/anyio/streams/memory.py", line 118, in receive
raise EndOfStream
anyio.EndOfStream
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/uvicorn/protocols/http/httptools_impl.py", line 426, in run_asgi
result = await app( # type: ignore[func-returns-value]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
self.scope, self.receive, self.send
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/uvicorn/middleware/proxy_headers.py", line 84, in **call**
return await self.app(scope, receive, send)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/fastapi/applications.py", line 1106, in **call**
await super().**call**(scope, receive, send)
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/applications.py", line 122, in **call**
await self.middleware_stack(scope, receive, send)
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/errors.py", line 184, in **call**
raise exc
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/errors.py", line 162, in **call**
await self.app(scope, receive, \_send)
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/base.py", line 108, in **call**
response = await self.dispatch_func(request, call_next)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/lukas/Volume/repo/Aniworld/src/server/middleware/auth.py", line 209, in dispatch
return await call_next(request)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/base.py", line 84, in call_next
raise app_exc
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/base.py", line 70, in coro
await self.app(scope, receive_or_disconnect, send_no_error)
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/base.py", line 108, in **call**
response = await self.dispatch_func(request, call_next)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/lukas/Volume/repo/Aniworld/src/server/middleware/setup_redirect.py", line 147, in dispatch
return await call_next(request)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/base.py", line 84, in call_next
raise app_exc
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/base.py", line 70, in coro
await self.app(scope, receive_or_disconnect, send_no_error)
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/cors.py", line 91, in **call**
await self.simple_response(scope, receive, send, request_headers=headers)
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/cors.py", line 146, in simple_response
await self.app(scope, receive, send)
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/exceptions.py", line 79, in **call**
raise exc
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/starlette/middleware/exceptions.py", line 68, in **call**
await self.app(scope, receive, sender)
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/site-packages/fastapi/middleware/asyncexitstack.py", line 14, in **call**
async with AsyncExitStack() as stack:
~~~~~~~~~~~~~~^^
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/contextlib.py", line 768, in **aexit**
raise exc
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/contextlib.py", line 751, in **aexit**
cb_suppress = await cb(\*exc_details)
^^^^^^^^^^^^^^^^^^^^^^
File "/home/lukas/miniconda3/envs/AniWorld/lib/python3.13/contextlib.py", line 271, in **aexit**
raise RuntimeError("generator didn't stop after athrow()")
RuntimeError: generator didn't stop after athrow()
2. add actions
make sure that on a add only the added series is searched. so nfo and logo is loaded only for that one serie
```

28
src/server/utils/dependencies.py
View File

@@ -124,19 +124,15 @@ async def get_database_session() -> AsyncGenerator:
"""
try:
from src.server.database import get_db_session
async with get_db_session() as session:
try:
yield session
except Exception:
# Re-raise the exception to let FastAPI handle it
# This prevents "generator didn't stop after athrow()" error
raise
except ImportError:
raise HTTPException(
status_code=status.HTTP_501_NOT_IMPLEMENTED,
detail="Database functionality not installed"
)
try:
async with get_db_session() as session:
yield session
except RuntimeError as e:
raise HTTPException(
status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
@@ -168,17 +164,17 @@ async def get_optional_database_session() -> AsyncGenerator:
"""
try:
from src.server.database import get_db_session
async with get_db_session() as session:
try:
yield session
except Exception:
# Re-raise to let FastAPI handle it properly
# This prevents "generator didn't stop after athrow()" error
raise
except (ImportError, RuntimeError):
# Database not available - yield None
yield None
return
try:
async with get_db_session() as session:
yield session
except (ImportError, RuntimeError):
# Database became unavailable - this shouldn't happen but handle it
yield None
def get_current_user(