FastCheck/src/app/app.config.ts

import { APP_INITIALIZER, ApplicationConfig, provideBrowserGlobalErrorListeners } from '@angular/core';
import { provideRouter } from '@angular/router';
import { provideHttpClient } from '@angular/common/http';

import { AuthSessionService } from './auth-session.service';
import { routes } from './app.routes';

export const appConfig: ApplicationConfig = {
  providers: [
    provideBrowserGlobalErrorListeners(),
    provideRouter(routes),
    provideHttpClient(),
    {
      provide: APP_INITIALIZER,
      multi: true,
      deps: [AuthSessionService],
      useFactory: (authSession: AuthSessionService) => () => authSession.initialize()
    }
  ]
};