main.py

from fastapi import FastAPI, HTTPException
from pydantic import BaseModel

# Create a FastAPI app instance
app = FastAPI()

class Item(BaseModel):
    text: str # Changed text attribute to be required by removing the "= None" default value
    is_done: bool = False

# Items list initializer inst
items = []

# HTTP Get "Hello: World" method path
@app.get("/")
def root():
    return {"Hello": "World"}

# HTTP Post "item" method path
# Problem 1: The path should start with a slash: @app.post("/items").
# Enhanced with BaseModel
@app.post("/items")
def create_item(item: Item):
    items.append(item)
    return item

# HTTP Get item by ID/Index method path (v1.1)
# Enhanced with BaseModel
@app.get("/items/{item_id}", response_model=list[Item])
def get_item(item_id: int) -> Item:
    if item_id < len(items):
        return items[item_id]
    else:
        raise HTTPException(status_code=404, detail=f"Item {item_id} not found")
    
# this endpoint uses a query parameter 'limit'
@app.get("/items", response_model=list[Item])
def list_items(limit: int = 10):
    return items[0:limit]