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add-tests-for-parameter-defaults
check-zh-translation-prompt
dependabot/github_actions/github-actions-c4d52eb9c7
dependabot/uv/python-packages-9c548899e3
fix-broken-links-in-index.md
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fix-nested-annotated-types-in-field_annotation_is_scalar_sequence
fix-response_model_---parameters-with-Iterable
master
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v0.1.16
${ noResults }
tiangolo.fastapi/fastapi/dependencies
Ismail Pelaseyed
da5f00610d
When a security scheme (OAuth2PasswordBearer, HTTPBearer, APIKeyHeader, etc.) has auto_error=False, it returns None on missing or invalid credentials. Previously, FastAPI injected this None into the endpoint parameter regardless of its type annotation, causing either a 500 crash (if the handler called methods on the value) or a silent auth bypass (if the handler did a truthy check). Now, when a security scheme dependency returns None and the endpoint parameter is annotated as non-optional (e.g. `str` instead of `str | None`), FastAPI returns a 422 validation error with a message explaining the mismatch. Parameters annotated as optional continue to receive None as before. The check only applies to direct security scheme dependencies, not to intermediate functions in dependency chains. |
2 months ago | |
|---|---|---|
| .. | ||
| __init__.py | ♻️ Refactor, fix and update code | 8 years ago |
| models.py | fix: reject None from security dependencies when annotation is non-optional | 2 months ago |
| utils.py | fix: reject None from security dependencies when annotation is non-optional | 2 months ago |