FastAPI·FastAPI essentials

Pydantic models

Models validate request and response bodies with type hints.

Intermediate 10 min read Lesson 2 of 150 Challenge included
What you will be able to do
  • Subclass BaseModel.
  • Annotate fields.
  • Invalid input returns 422.

In plain English

Models validate request and response bodies with type hints.

  • Subclass BaseModel.
  • Annotate fields.
  • Invalid input returns 422.
models.pyPython
from pydantic import BaseModel

class Course(BaseModel):
    slug: str
    title: str
    minutes: int = 10
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Answer from memory: Which base class defines a request model?

TEXT · starter
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Knowledge checkQuestion 1

Which base class defines a request model?

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