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request_validation_exception_handler() — fastapi Function Reference

Architecture documentation for the request_validation_exception_handler() function in exception_handlers.py from the fastapi codebase.

Function python FastAPI Responses calls 2 called by 1

Entity Profile

Dependency Diagram

graph TD
  2d028bc8_34b4_6303_1406_f7c12b4394e6["request_validation_exception_handler()"]
  2d259205_f589_7dee_455a_60e1c67ed35e["exception_handlers.py"]
  2d028bc8_34b4_6303_1406_f7c12b4394e6 -->|defined in| 2d259205_f589_7dee_455a_60e1c67ed35e
  3f3bb92b_47cb_ed7e_a0d0_c5c6c752badf["validation_exception_handler()"]
  3f3bb92b_47cb_ed7e_a0d0_c5c6c752badf -->|calls| 2d028bc8_34b4_6303_1406_f7c12b4394e6
  1ac1bc37_1a47_e7e2_9156_ab0473094700["jsonable_encoder()"]
  2d028bc8_34b4_6303_1406_f7c12b4394e6 -->|calls| 1ac1bc37_1a47_e7e2_9156_ab0473094700
  7702da8c_3f6b_a8bb_d4ca_61939c372354["errors()"]
  2d028bc8_34b4_6303_1406_f7c12b4394e6 -->|calls| 7702da8c_3f6b_a8bb_d4ca_61939c372354
  style 2d028bc8_34b4_6303_1406_f7c12b4394e6 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

fastapi/exception_handlers.py lines 20–26

async def request_validation_exception_handler(
    request: Request, exc: RequestValidationError
) -> JSONResponse:
    return JSONResponse(
        status_code=422,
        content={"detail": jsonable_encoder(exc.errors())},
    )

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Frequently Asked Questions

What does request_validation_exception_handler() do?
request_validation_exception_handler() is a function in the fastapi codebase, defined in fastapi/exception_handlers.py.
Where is request_validation_exception_handler() defined?
request_validation_exception_handler() is defined in fastapi/exception_handlers.py at line 20.
What does request_validation_exception_handler() call?
request_validation_exception_handler() calls 2 function(s): errors, jsonable_encoder.
What calls request_validation_exception_handler()?
request_validation_exception_handler() is called by 1 function(s): validation_exception_handler.

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