You don’t make a POST request to the auth endpoint, you need to redirect the user to that URL, and if they agree to connect to your app and the scopes you’re requesting from them they’ll be redirected to your redirect uri
You don’t make a POST request to the auth endpoint, you need to redirect the user to that URL, and if they agree to connect to your app and the scopes you’re requesting from them they’ll be redirected to your redirect uri