react-loading-hook
Async loading and error state management hook for TypeScript and JavaScript React applications
ngx-http-request-state
Angular library for wrapping HttpClient responses with loading & error information to allow observing load/loading/error state changes as a stream of events.
ngx-view-state
ngx-view-state is a library for managing the Loading/Success/Error states of views in Angular applications that use Ngrx or HttpClient