angular-jwt中没有authhttp

Question

我试图在我的应用程序中实现facebook auth，但是我发现的部分代码遇到了麻烦，因为在那里使用了angular2-jwt。如何将其转换为当前的angular-jwt模块版本

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

declare const FB:any;

@Injectable()
export class UserService {

  constructor(private http: AuthHttp) {
    FB.init({
      appId      : 'YOUR-APP-ID',
      status     : false, // the SDK will attempt to get info about the current user immediately after init
      cookie     : false,  // enable cookies to allow the server to access
      // the session
      xfbml      : false,  // With xfbml set to true, the SDK will parse your page's DOM to find and initialize any social plugins that have been added using XFBML
      version    : 'v2.8' // use graph api version 2.5
    });
  }

  fbLogin() {
    return new Promise((resolve, reject) => {
      FB.login(result => {
        if (result.authResponse) {
          return this.http.post(`http://localhost:3000/api/v1/auth/facebook`, {access_token: result.authResponse.accessToken})
              .toPromise()
              .then(response => {
                var token = response.headers.get('x-auth-token');
                if (token) {
                  localStorage.setItem('id_token', token);
                }
                resolve(response.json());
              })
              .catch(() => reject());
        } else {
          reject();
        }
      }, {scope: 'public_profile,email'})
    });
  }