backend.py

from fastapi import FastAPI
import uvicorn
from starlette.middleware.cors import CORSMiddleware

app = FastAPI()
app.add_middleware(CORSMiddleware,
                   allow_origins=["*"],
                   allow_methods=["*"],
                   allow_headers=["*"])

@app.get("/")
def helloWorld():
    return "Hello Peter!"

if __name__ == "__main__":
    uvicorn.run("backend:app", host="0.0.0.0", port=8080)