next-ucap-messenger/projects/ucap-webmessenger-app/src/app/app-provider.module.ts

import { NgModule, APP_INITIALIZER } from '@angular/core';

import { UCAP_NATIVE_SERVICE } from '@ucap-webmessenger/native';
import { ElectronNativeService } from '@ucap-webmessenger/native-electron';

import { SERVICES } from './services';
import { AppService } from './services/app.service';

export function initializeApp(appService: AppService) {
  return (): Promise<any> => {
    return appService.postInit();
  };
}

@NgModule({
  imports: [],
  exports: [],
  providers: [
    ...SERVICES,
    {
      provide: APP_INITIALIZER,
      useFactory: initializeApp,
      deps: [AppService],
      multi: true
    },
    { provide: UCAP_NATIVE_SERVICE, useClass: ElectronNativeService }
  ]
})
export class AppProviderModule {}