How to build role based authentication ?

[Sakkhor909]

Hello, I am new to Next auth. I am trying to build a role-based authentication web application but couldn't get many ideas in the Next auth. I only find this about the role in the doc https://next-auth.js.org/getting-started/client#custom-client-session-handling
Can anyone please give me some idea or tutorial link about creating a role-based system application using Next Auth?
What I want here is that A Super Admin (Me) can be accessed every route and every part of the website. He can send an invitation email to assign a role like an editor, admin. The user will get the invitation by email and can be signup from their with nessecry info added by themself like name, gender, etc.
I am learning Next Auth for a few days and can protect every page by authentication. But how I am able to do it in an invitation way? Right now, everyone can login through an authentication provider without assigning any role to them.