query_or_cookie_extractor() — fastapi Function Reference

Architecture documentation for the query_or_cookie_extractor() function in tutorial005_py39.py from the fastapi codebase.

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FastAPI→ Responses→ query_or_cookie_extractor() — fastapi Function Reference

Dependency Diagram

graph TD
  fa8e6776_e48e_2e41_f406_948089937436["query_or_cookie_extractor()"]
  520fdb0d_2430_9803_6606_d98c3a18f831["tutorial005_py39.py"]
  fa8e6776_e48e_2e41_f406_948089937436 -->|defined in| 520fdb0d_2430_9803_6606_d98c3a18f831
  style fa8e6776_e48e_2e41_f406_948089937436 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

docs_src/dependencies/tutorial005_py39.py lines 12–18

def query_or_cookie_extractor(
    q: str = Depends(query_extractor),
    last_query: Union[str, None] = Cookie(default=None),
):
    if not q:
        return last_query
    return q