import { Injectable } from '@angular/core';
import { Resolve } from '@angular/router';
import { NotificationsService } from './notifications.service';
export class NotificationsResolver implements Resolve<any> {
constructor(private notificationsService: NotificationsService) { }
// Base Observable (where we get data from)
const dataObservable = this.notificationsService.getData();
return { source: dataObservable };