Python Classroom notes 19/May/2026

Fake Store API

Pydantic

  • This helps is dealing with request and response body
  • Pydantic also helps in validation

To create a message structure in pydantic

  • Create a class, derive from BaseModel and define type hints
from pydantic import BaseModel

class Product(BaseModel):
    id: int
    name: str
    description: str
    price: float
  • When the user passes the request the message body
    Preview

  • If the message doesnot match the types pydantic will throw validation errors

  • Prompt

Using pydantic, help me validate, Give code snippets suitable for fastapi

  * Emails
  * urls
  * Range of values
  * boundaries for numbers
any other interesting stuff 
ensure its pydantic latest version

By continuous learner

enthusiastic technology learner

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