custom_middleware() — fastapi Function Reference

Architecture documentation for the custom_middleware() function in test_dependency_contextvars.py from the fastapi codebase.

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Dependency Diagram

graph TD
  7bb9a333_72c8_8156_0ba9_b35e9b5d97bd["custom_middleware()"]
  e41999b9_ee75_d78c_cb43_68601b39ae25["test_dependency_contextvars.py"]
  7bb9a333_72c8_8156_0ba9_b35e9b5d97bd -->|defined in| e41999b9_ee75_d78c_cb43_68601b39ae25
  style 7bb9a333_72c8_8156_0ba9_b35e9b5d97bd fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

tests/test_dependency_contextvars.py lines 23–28

async def custom_middleware(
    request: Request, call_next: Callable[[Request], Awaitable[Response]]
):
    response = await call_next(request)
    response.headers["custom"] = "foo"
    return response