import { isDevMode , NgModule } from '@angular/core' ; import { ServerModule , } from '@angular/platform-server' ; import { AppModule } from './app.module' ; import { AppComponent } from './app.component' ; import { APP_BASE_HREF } from '@angular/common' ; import { provideAppCheck , CustomProvider , initializeAppCheck } from '@angular/fire/app-check' ; @ NgModule ( { imports : [ AppModule , ServerModule , provideAppCheck ( ( ) => { const provider = new CustomProvider ( { getToken : ( ) => Promise . reject ( ) } ) ; return initializeAppCheck ( undefined , { provider , isTokenAutoRefreshEnabled : true } ) ; } ) , ] , providers : [ { provide : APP_BASE_HREF , useFactory : ( ) => isDevMode ( ) ? '/us-central1/ssr' : '/ssr' } , ] , bootstrap : [ AppComponent ] , } ) export class AppServerModule { }