app.py

from fastapi import FastAPI
from fastapi.responses import HTMLResponse

app = FastAPI()


@app.get("/")
def home():
    html_content = open('index.html').read()
    return HTMLResponse(content=html_content, status_code=200)


@app.get("/hello")
def hello():
    return {"hello": "world"}


@app.get("/hello/{name}")
def greet(name):
    return {"greeting": f"Hello {name}!"}