Return main HTML file

examples/fastapi/return-html-file/main.py

from fastapi import FastAPI, Response
import os
root = os.path.dirname(os.path.abspath(__file__))

app = FastAPI()

@app.get("/")
async def main():
    #print(root)
    with open(os.path.join(root, 'index.html')) as fh:
        data = fh.read()
    return Response(content=data, media_type="text/html")

@app.get("/hello")
async def hello():
    return {"message": "Hello World"}

examples/fastapi/return-html-file/index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=yes">

  <title>Demo FastAPI</title>
</head>
<body>
<h1>Main subject</h1>


<a href="/hello">hello</a>

</body>
</html>