server_starlette.py

from starlette.applications import Starlette
from starlette.responses import PlainTextResponse
import uvicorn

app = Starlette()


@app.route('/')
async def homepage(request):
    return PlainTextResponse('')


@app.route('/user/{user_id}')
async def user(request):
    user_id = request.path_params['user_id']
    return PlainTextResponse(user_id)


@app.route('/user')
async def userinfo(request):
    if request.method == 'POST':
        return PlainTextResponse('')

if __name__ == '__main__':
    uvicorn.run(app, debug=True, port=3000)