task-list.service.ts

import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';
import { AuthHttp } from 'angular2-jwt';

@Injectable()
export class TaskListService {
  private static TASKS_ENDPOINT =
    'https://wt-e1870b8a73b27cdee73c468b8c8e3bc4-0.run.webtask.io/tasks';

  constructor(private authHttp: AuthHttp) { }

  loadTasks$(): Observable<any> {
    return this.authHttp.get(TaskListService.TASKS_ENDPOINT);
  }
    
  addTask$(task) : Observable<any> {
    return this.authHttp.post(TaskListService.TASKS_ENDPOINT,
      { description: task });
  }
    
  deleteTask$(task): Observable<any> {
    return this.authHttp.delete(TaskListService.TASKS_ENDPOINT +
      '?id=' + task._id);
  }
}