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FastAPI · Concept

Pydantic models

Use a Pydantic model with Form() to read and validate several form fields as one FastAPI parameter. Install python-multipart first.

Last updated

Since
0.113.0

Syntax

data: Annotated[FormData, Form()]

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  • Pydantic Models for Forms
  • Forbid Extra Form Fields
  • Request Forms and Files
  • UploadFile
  • File

Source: Form Models - FastAPI. Checked 2026-11-03.