getAppointmentsList() {

    const current_center = JSON.parse(localStorage.getItem('selectedCenter')).urlid;
    const loggedInUser = JSON.parse(localStorage.getItem('current_user'));
    console.log(loggedInUser);
    const parameters = {
      // id: loggedInUser.id
      id: 213,
      token: loggedInUser.token
    };

    return Observable.create(observer => {
      this.api.get(current_center + this.endpoint, true, parameters)
        .subscribe(data => {
          this.objectList.push(data);
          observer.next(this.objectList);
          console.log(data);
          observer.next(data);
        }, (err) => {
          observer.error(err);
        });
    });
  }

  getAlreadyLoadedAppointmentList() {
    if (this.objectList.length !== 0) {
      return Observable.create(observer => {
        observer.next(this.objectList);
      });
    }
    return this.getAppointmentsList();
  }