from typing import List from fastapi import FastAPI from pydantic import BaseModel app = FastAPI() class Item(BaseModel): name: str price: float class ResponseMessage(BaseModel): message: str class User(BaseModel): username: str email: str @app.post("/items/", response_model=ResponseMessage, tags=["items"]) async def create_item(item: Item): return {"message": "Item received"} @app.get("/items/", response_model=List[Item], tags=["items"]) async def get_items(): return [ {"name": "Plumbus", "price": 3}, {"name": "Portal Gun", "price": 9001}, ] @app.post("/users/", response_model=ResponseMessage, tags=["users"]) async def create_user(user: User): return {"message": "User received"}