How can you deny access to resources without authentication?

Question

Angular

There is a project on Node.js + Angular, passport.js is used for authentication.
When starting a project, a page with authorization and registration is available to the user.
After successfully entering the site, redirection to the main content of the site occurs in the following way:
res.sendfile('./public/main.html');
In the address bar, the following is displayed: 127.0.0.1:2300/#!
Question: how to prevent direct access to main.html (and other pages) from the address bar if the user has not been authenticated?

Answer 1

For example, as the documentation says: www.passportjs.org/docs/authorize
put this in static routes