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copy_field_info() — fastapi Function Reference

Architecture documentation for the copy_field_info() function in v2.py from the fastapi codebase.

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Entity Profile

Dependency Diagram

graph TD
  e21c0d22_3463_66d9_06e9_34d5f9f070b0["copy_field_info()"]
  3e134d50_38c1_8523_f518_6686c1d9752b["v2.py"]
  e21c0d22_3463_66d9_06e9_34d5f9f070b0 -->|defined in| 3e134d50_38c1_8523_f518_6686c1d9752b
  style e21c0d22_3463_66d9_06e9_34d5f9f070b0 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

fastapi/_compat/v2.py lines 299–305

def copy_field_info(*, field_info: FieldInfo, annotation: Any) -> FieldInfo:
    cls = type(field_info)
    merged_field_info = cls.from_annotation(annotation)
    new_field_info = copy(field_info)
    new_field_info.metadata = merged_field_info.metadata
    new_field_info.annotation = merged_field_info.annotation
    return new_field_info

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Frequently Asked Questions

What does copy_field_info() do?
copy_field_info() is a function in the fastapi codebase, defined in fastapi/_compat/v2.py.
Where is copy_field_info() defined?
copy_field_info() is defined in fastapi/_compat/v2.py at line 299.

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