8000 ✏ Fix typos in Deployment Guide by ghandic · Pull Request #3975 · fastapi/fastapi · GitHub
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Catching exceptions in the dependancy call - eg for pydantic validati…
…on error to return a 422
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ghandic committed Sep 28, 2021
commit 5ee7edc27a2d34afd4ea67152c11d6b408fd95d9
42 changes: 23 additions & 19 deletions fastapi/dependencies/utils.py
Original file line number Diff line number Diff line change
Expand Up @@ -535,25 +535,29 @@ async def solve_dependencies(
if sub_errors:
errors.extend(sub_errors)
continue
if sub_dependant.use_cache and sub_dependant.cache_key in dependency_cache:
solved = dependency_cache[sub_dependant.cache_key]
elif is_gen_callable(call) or is_async_gen_callable(call):
stack = request.scope.get("fastapi_astack")
if stack is None:
raise RuntimeError(
async_contextmanager_dependencies_error
) # pragma: no cover
solved = await solve_generator(
call=call, stack=stack, sub_values=sub_values
)
elif is_coroutine_callable(call):
solved = await call(**sub_values)
else:
solved = await run_in_threadpool(call, **sub_values)
if sub_dependant.name is not None:
values[sub_dependant.name] = solved
if sub_dependant.cache_key not in dependency_cache:
dependency_cache[sub_dependant.cache_key] = solved

try:
if sub_dependant.use_cache and sub_dependant.cache_key in dependency_cache:
solved = dependency_cache[sub_dependant.cache_key]
elif is_gen_callable(call) or is_async_gen_callable(call):
stack = request.scope.get("fastapi_astack")
if stack is None:
raise RuntimeError(
async_contextmanager_dependencies_error
) # pragma: no cover
solved = await solve_generator(
call=call, stack=stack, sub_values=sub_values
)
elif is_coroutine_callable(call):
solved = await call(**sub_values)
else:
solved = await run_in_threadpool(call, **sub_values)
if sub_dependant.name is not None:
values[sub_dependant.name] = solved
if sub_dependant.cache_key not in dependency_cache:
dependency_cache[sub_dependant.cache_key] = solved
except Exception as e:
errors.append(ErrorWrapper(e, loc=(sub_dependant.name)))
path_values, path_errors = request_params_to_args(
dependant.path_params, request.path_params
)
Expand Down
0