app.py

from fastapi import FastAPI, HTTPException
from pydantic import BaseModel

app = FastAPI()

class NumberData(BaseModel):
    number: int

stored_number = None

@app.get("/")
async def get_stored_number():
    return {} if stored_number is None else stored_number

@app.post("/")
async def store_number(data: NumberData):
    global stored_number
    stored_number = data.number
    return {"message": "Number stored successfully"}

@app.delete("/")
async def delete_stored_number():
    global stored_number
    stored_number = None
    return {"message": "Stored number deleted"}