middleware() — fastapi Function Reference

Architecture documentation for the middleware() function in test_dependency_contextmanager.py from the fastapi codebase.

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FastAPI→ Applications→ middleware() — fastapi Function Reference

Dependency Diagram

graph TD
  516f3dee_e5fc_ec7c_3846_a2e896bb9235["middleware()"]
  952bbb41_0c47_a7fe_aee8_884380d032f7["test_dependency_contextmanager.py"]
  516f3dee_e5fc_ec7c_3846_a2e896bb9235 -->|defined in| 952bbb41_0c47_a7fe_aee8_884380d032f7
  style 516f3dee_e5fc_ec7c_3846_a2e896bb9235 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

tests/test_dependency_contextmanager.py lines 207–210

async def middleware(request, call_next):
    response: StreamingResponse = await call_next(request)
    response.headers["x-state"] = json.dumps(state.copy())
    return response