As we are touching only the most significant part of our application, we are going to discuss the implementation of our services used in the Angular application. I think it's important to understand the underlying communication layer with the backend application.
AuctionService will handle all communications with the backend API to get info about a specific auction, or simply get all the available auctions. To do that, we are going to create a new file, public/src/services/auction.service.ts:
import { Injectable } from 'angular2/core';
import { Response, Headers } from 'angular2/http';
import { Observable } from 'rxjs/Observable';
import { Subject } from 'rxjs/Subject';
import { BehaviorSubject } from 'rxjs/Subject/BehaviorSubject';
import { AuthHttp } from '../auth/index';
import { contentHeaders } from '../common/headers';
import { Auction } from './auction.model';
import { SubjectAuction, ObservableAuction, ObservableAuctions } from './types';
const URL...