field_annotation_is_scalar() — fastapi Function Reference

Architecture documentation for the field_annotation_is_scalar() function in shared.py from the fastapi codebase.

Function python FastAPI Applications calls 1 called by 2

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FastAPI→ Applications→ field_annotation_is_scalar() — fastapi Function Reference

Dependency Diagram

graph TD
  935832d6_93ad_1258_7852_84ffec4ea5d4["field_annotation_is_scalar()"]
  3e898b29_4dd8_c417_2d9b_a84d867423b4["shared.py"]
  935832d6_93ad_1258_7852_84ffec4ea5d4 -->|defined in| 3e898b29_4dd8_c417_2d9b_a84d867423b4
  4dfe14d4_f887_9fbf_e35f_b0033e4779c0["field_annotation_is_scalar_sequence()"]
  4dfe14d4_f887_9fbf_e35f_b0033e4779c0 -->|calls| 935832d6_93ad_1258_7852_84ffec4ea5d4
  e48734b6_33e6_ce5b_b835_eae318a8eb8f["is_scalar_field()"]
  e48734b6_33e6_ce5b_b835_eae318a8eb8f -->|calls| 935832d6_93ad_1258_7852_84ffec4ea5d4
  e3e32bb4_c2f8_785e_9705_9539ba56c60e["field_annotation_is_complex()"]
  935832d6_93ad_1258_7852_84ffec4ea5d4 -->|calls| e3e32bb4_c2f8_785e_9705_9539ba56c60e
  style 935832d6_93ad_1258_7852_84ffec4ea5d4 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

fastapi/_compat/shared.py lines 106–108

def field_annotation_is_scalar(annotation: Any) -> bool:
    # handle Ellipsis here to make tuple[int, ...] work nicely
    return annotation is Ellipsis or not field_annotation_is_complex(annotation)