import { Component, OnInit } from '@angular/core'; import { Store, select } from '@ngrx/store'; import * as AppSotre from '@app/store'; import { Observable } from 'rxjs'; @Component({ selector: 'app-page-messenger-main', templateUrl: './main.page.component.html', styleUrls: ['./main.page.component.scss'] }) export class MainPageComponent implements OnInit { selectedChat$: Observable; constructor(private store: Store) {} ngOnInit(): void { this.selectedChat$ = this.store.pipe( select(AppSotre.MessengerSelector.ChatSelector.selectedRoom) ); } }