Add custom field in Universal Login page

I want to add a country field in login page, when user login, they should select a country that will use to match a data center. after login success, I can subscribe this value in auth service.

I just want to get a parameter, setting in login page and getting in auth service after login success!

Hi @liuxiaobo93,

Welcome to the Auth0 Community!

Check out this FAQ: How do I add custom fields to the signup/login widget?