deploying a solid js app in render while consuming a backend api

if i'll need to make the code into production & i have the backend url hosted,

const BACKEND_URL_API=process.env.BACKEND_URL_API;
const BACKEND_URL=process.env.BACKEND_URL;

const BACKEND_URL_API=process.env.BACKEND_URL_API;
const BACKEND_URL=process.env.BACKEND_URL;

and in the env file i have this

BACKEND_URL="https://python-fastapi.onrender.com"
BACKEND_URL_API="https://python-fastapi.onrender.com/api"

BACKEND_URL="https://python-fastapi.onrender.com"
BACKEND_URL_API="https://python-fastapi.onrender.com/api"