query_or_cookie_extractor() — fastapi Function Reference

Architecture documentation for the query_or_cookie_extractor() function in tutorial005_an_py310.py from the fastapi codebase.

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FastAPI→ Applications→ query_or_cookie_extractor() — fastapi Function Reference

Dependency Diagram

graph TD
  9ddd4715_7c93_fd5d_99a5_090214f84fd2["query_or_cookie_extractor()"]
  c392b072_c38c_83a9_7ba9_665c69730c89["tutorial005_an_py310.py"]
  9ddd4715_7c93_fd5d_99a5_090214f84fd2 -->|defined in| c392b072_c38c_83a9_7ba9_665c69730c89
  style 9ddd4715_7c93_fd5d_99a5_090214f84fd2 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

docs_src/dependencies/tutorial005_an_py310.py lines 12–18

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