FastAPI CRUD 스타터

from fastapi import FastAPI, HTTPException, status
from pydantic import BaseModel
from typing import Optional, List

app = FastAPI(title="My API", version="1.0.0", docs_url="/docs")


class Item(BaseModel):
    id: Optional[int] = None
    name: str
    description: Optional[str] = None
    price: float
    is_active: bool = True


items_db: List[Item] = []


@app.get("/", tags=["health"])
def root():
    return {"message": "API is running", "docs": "/docs"}


@app.get("/items", response_model=List[Item], tags=["items"])
def list_items():
    return items_db


@app.get("/items/{item_id}", response_model=Item, tags=["items"])
def get_item(item_id: int):
    for item in items_db:
        if item.id == item_id:
            return item
    raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Item not found")


@app.post("/items", response_model=Item, status_code=status.HTTP_201_CREATED, tags=["items"])
def create_item(item: Item):
    item.id = len(items_db) + 1
    items_db.append(item)
    return item


@app.put("/items/{item_id}", response_model=Item, tags=["items"])
def update_item(item_id: int, payload: Item):
    for i, item in enumerate(items_db):
        if item.id == item_id:
            payload.id = item_id
            items_db[i] = payload
            return payload
    raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Item not found")


@app.delete("/items/{item_id}", status_code=status.HTTP_204_NO_CONTENT, tags=["items"])
def delete_item(item_id: int):
    for i, item in enumerate(items_db):
        if item.id == item_id:
            items_db.pop(i)
            return
    raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Item not found")