How to prevent access to certain pages in NextJs if the user is not authorized?

Question

JavaScript

I'm new to nextJs, but I don't understand at all how to make it so that if the user is not logged in, then he can conditionally visit '/' and '/auth' , but cannot visit the others, for example '/home' , ' /news' and so on.
If in a normal react I did this using Switch,Redirect , then here I can do it if the user ends up with only 1 page, but I don’t know to have access to several pages