import { Observable } from 'rxjs/Observable';

import 'rxjs/add/operator/map';

import 'rxjs/add/operator/catch';

import 'rxjs/add/observable/throw';

  updatePassenger(passenger: Passenger): Observable<Passenger> {

    let headers = new Headers({

      'Content-Type': 'application/json'

    });

    let options = new RequestOptions({

      headers: headers

    });

    return this.http

      .put(`${PASSENGER_API}/${passenger.id}`, passenger, options)

      .map((response: Response) => response.json())

      .catch((error: any) => Observable.throw(error.json()));

  }