Roles and permissions?

Question

Angular

There is a project on angular and nodejs (express - passport) The
question is the following.
I have a menu where there are links to pages, conditionally:
Calculator - when clicked, it goes to the www.somedomain/calculate page, when going to this page, an http request is made to the node, some information from the database is conditionally pulled up.
And the profile - when you go to the page, the same actions are performed as when you go to the calculator page.
There are 2 user groups: administrators and users.
Of course, express-acl or acl will block access to http requests for the user, but the link to this page of the calculator will still hang.
How can I hide calculator links from the menu for the user?