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__call__() — fastapi Function Reference

Architecture documentation for the __call__() function in applications.py from the fastapi codebase.

Function python FastAPI Applications

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Dependency Diagram

graph TD
  685cfafc_8748_c8d0_a18b_4be786160320["__call__()"]
  587454b3_6db6_011f_9fa4_3e4e2e09b72d["FastAPI"]
  685cfafc_8748_c8d0_a18b_4be786160320 -->|defined in| 587454b3_6db6_011f_9fa4_3e4e2e09b72d
  style 685cfafc_8748_c8d0_a18b_4be786160320 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

fastapi/applications.py lines 1135–1138

    async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
        if self.root_path:
            scope["root_path"] = self.root_path
        await super().__call__(scope, receive, send)

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Frequently Asked Questions

What does __call__() do?
__call__() is a function in the fastapi codebase, defined in fastapi/applications.py.
Where is __call__() defined?
__call__() is defined in fastapi/applications.py at line 1135.

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