Role-Based Access Control with Angular

hello (sorry for my English, I’m Italian), I’m following this tutorial to create the login with access with roles (Add Role-Based Access Control to Your App with Spring Security and Thymeleaf | Okta Developer), could you tell me what is the Angular code to insert? the one found here (samples-js-angular/custom-login/src/app at master · okta/samples-js-angular · GitHub) is different it doesn’t implement the roles screen.