@app.post("/users/") def create_user(user: User): return user
from fastapi import FastAPI from pydantic import BaseModel fastapi tutorial pdf
FastAPI Tutorial: A Complete Guide (Downloadable PDF Guide) FastAPI has emerged as one of the most popular modern web frameworks for building APIs with Python 3.8+ due to its incredible speed, ease of use, and automatic documentation features. Whether you are building a microservice, a high-performance web backend, or a machine learning API, FastAPI is an excellent choice. ease of use
: Use pydantic-settings to manage sensitive database URIs, security secrets, and app configurations. a high-performance web backend
This is where FastAPI truly shines. Pydantic models do more than just define shape – they provide:
@app.get("/") async def root(): return "message": "Hello World"