Trying to post an empty list as json payload to endpoints that log the event as part of action_logging cause internal server error. The logging decorator always assumes that json payload will be a dictionary and sending a list causes AttributeError leading to internal server error.
The decorator can use empty dictionary for non-dictionary payloads and let FastAPI handle the validation.
[2026-02-23T13:13:22.552150Z] {httptools_impl.py:414} ERROR - Exception in ASGI application
+ Exception Group Traceback (most recent call last):
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_utils.py", line 76, in collapse_excgroups
| yield
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 178, in __call__
| async with anyio.create_task_group() as task_group:
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/anyio/_backends/_asyncio.py", line 767, in __aexit__
| raise BaseExceptionGroup(
| ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)
+-+---------------- 1 ----------------
| Traceback (most recent call last):
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/uvicorn/protocols/http/httptools_impl.py", line 409, in run_asgi
| result = await app( # type: ignore[func-returns-value]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in __call__
| return await self.app(scope, receive, send)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/applications.py", line 1134, in __call__
| await super().__call__(scope, receive, send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/applications.py", line 112, in __call__
| await self.middleware_stack(scope, receive, send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/errors.py", line 187, in __call__
| raise exc
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/errors.py", line 165, in __call__
| await self.app(scope, receive, _send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/cors.py", line 93, in __call__
| await self.simple_response(scope, receive, send, request_headers=headers)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/cors.py", line 144, in simple_response
| await self.app(scope, receive, send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/gzip.py", line 20, in __call__
| await responder(scope, receive, send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/gzip.py", line 39, in __call__
| await self.app(scope, receive, self.send_with_gzip)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 177, in __call__
| with recv_stream, send_stream, collapse_excgroups():
| File "/usr/lib/python3.11/contextlib.py", line 158, in __exit__
| self.gen.throw(typ, value, traceback)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_utils.py", line 82, in collapse_excgroups
| raise exc
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 179, in __call__
| response = await self.dispatch_func(request, call_next)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/home/karthikeyan/stuff/python/airflow/airflow-core/src/airflow/api_fastapi/auth/middlewares/refresh_token.py", line 61, in dispatch
| response = await call_next(request)
| ^^^^^^^^^^^^^^^^^^^^^^^^
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 154, in call_next
| raise app_exc
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 141, in coro
| await self.app(scope, receive_or_disconnect, send_no_error)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/exceptions.py", line 62, in __call__
| await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
| raise exc
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
| await app(scope, receive, sender)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/middleware/asyncexitstack.py", line 18, in __call__
| await self.app(scope, receive, send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/routing.py", line 715, in __call__
| await self.middleware_stack(scope, receive, send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/routing.py", line 735, in app
| await route.handle(scope, receive, send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/routing.py", line 288, in handle
| await self.app(scope, receive, send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/routing.py", line 119, in app
| await wrap_app_handling_exceptions(app, request)(scope, receive, send)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
| raise exc
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
| await app(scope, receive, sender)
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/routing.py", line 105, in app
| response = await f(request)
| ^^^^^^^^^^^^^^^^
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/routing.py", line 414, in app
| solved_result = await solve_dependencies(
| ^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/dependencies/utils.py", line 645, in solve_dependencies
| solved = await call(**solved_result.values)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/home/karthikeyan/stuff/python/airflow/airflow-core/src/airflow/api_fastapi/logging/decorators.py", line 98, in log_action
| masked_body_json = {k: secrets_masker.redact(v, k) for k, v in request_body.items()}
| ^^^^^^^^^^^^^^^^^^
| AttributeError: 'list' object has no attribute 'items'
+------------------------------------
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/uvicorn/protocols/http/httptools_impl.py", line 409, in run_asgi
result = await app( # type: ignore[func-returns-value]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in __call__
return await self.app(scope, receive, send)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/applications.py", line 1134, in __call__
await super().__call__(scope, receive, send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/applications.py", line 112, in __call__
await self.middleware_stack(scope, receive, send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/errors.py", line 187, in __call__
raise exc
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/errors.py", line 165, in __call__
await self.app(scope, receive, _send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/cors.py", line 93, in __call__
await self.simple_response(scope, receive, send, request_headers=headers)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/cors.py", line 144, in simple_response
await self.app(scope, receive, send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/gzip.py", line 20, in __call__
await responder(scope, receive, send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/gzip.py", line 39, in __call__
await self.app(scope, receive, self.send_with_gzip)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 177, in __call__
with recv_stream, send_stream, collapse_excgroups():
File "/usr/lib/python3.11/contextlib.py", line 158, in __exit__
self.gen.throw(typ, value, traceback)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_utils.py", line 82, in collapse_excgroups
raise exc
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 179, in __call__
response = await self.dispatch_func(request, call_next)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/airflow-core/src/airflow/api_fastapi/auth/middlewares/refresh_token.py", line 61, in dispatch
response = await call_next(request)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 154, in call_next
raise app_exc
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 141, in coro
await self.app(scope, receive_or_disconnect, send_no_error)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/middleware/exceptions.py", line 62, in __call__
await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
raise exc
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
await app(scope, receive, sender)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/middleware/asyncexitstack.py", line 18, in __call__
await self.app(scope, receive, send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/routing.py", line 715, in __call__
await self.middleware_stack(scope, receive, send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/routing.py", line 735, in app
await route.handle(scope, receive, send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/routing.py", line 288, in handle
await self.app(scope, receive, send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/routing.py", line 119, in app
await wrap_app_handling_exceptions(app, request)(scope, receive, send)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
raise exc
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
await app(scope, receive, sender)
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/routing.py", line 105, in app
response = await f(request)
^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/routing.py", line 414, in app
solved_result = await solve_dependencies(
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/fastapi/dependencies/utils.py", line 645, in solve_dependencies
solved = await call(**solved_result.values)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/airflow-core/src/airflow/api_fastapi/logging/decorators.py", line 98, in log_action
masked_body_json = {k: secrets_masker.redact(v, k) for k, v in request_body.items()}
^^^^^^^^^^^^^^^^^^
AttributeError: 'list' object has no attribute 'items'
Internal server error should not occur and validation error should be returned.
Apache Airflow version
main (development)
If "Other Airflow 3 version" selected, which one?
No response
What happened?
Trying to post an empty list as json payload to endpoints that log the event as part of action_logging cause internal server error. The logging decorator always assumes that json payload will be a dictionary and sending a list causes
AttributeErrorleading to internal server error.The decorator can use empty dictionary for non-dictionary payloads and let FastAPI handle the validation.
What you think should happen instead?
Internal server error should not occur and validation error should be returned.
How to reproduce
Operating System
Ubuntu 20.04
Versions of Apache Airflow Providers
No response
Deployment
Virtualenv installation
Deployment details
No response
Anything else?
No response
Are you willing to submit PR?
Code of Conduct