HTTP Interceptor + Material Progress Loader | The best use case explained in Angular | Service calls - YouTube
GitHub - momopig/angular-global-loading-spinner: This directive will detect the http request, when a http request is sended, the loading spinner will show automatically
ngx-ui-loader - npm
Create a loading screen for Angular 7 apps | nezhar.com
How to implement global loaders using HTTP Interceptors - Angular Tutorials | indepth.dev
How to add a global loading spinner to an Angular application | Daniel Kreider
Angular Loading Spinner Component for API calls | HTTP Requests Globally | CodeWithSrini - YouTube
Loading indication in Angular - DEV Community
How To Add Loader/Spinner In Angular 8 Application
GitHub - JoshK2/ng-spinners: Amazing collection of Angular spinners components with pure css.
How to do loading spinners, the Angular 2+ way.
Angular:Showing a simple spinner when navigating to components | by AngularEnthusiast | Medium