NgRx Module with Store Only

books.app.module1.ts

@NgModule({
  declarations: [
    AppComponent,
    ItemComponent
  ],
  imports: [
    BrowserModule,
    HttpClientModule,
    HttpClientInMemoryWebApiModule.forRoot(InMemoryDataService, {dataEncapsulation: false}),
    ReactiveFormsModule,
    StoreModule.forRoot({bookStore: booksReducer})
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }