Ionic2 / Angular2 MailChimp接口获取响应

import { Injectable } from '@angular/core';
import { Http } from '@angular/http';
import 'rxjs/add/operator/map';

@Injectable()
export class MailChimpService {
  private apiUrl = 'https://api.mailchimp.com/3.0/';

  constructor(private http: Http) {}

  subscribe(email: string) {
    const apiKey = 'YOUR_MAILCHIMP_API_KEY';
    const listId = 'YOUR_MAILCHIMP_LIST_ID';

    const url = `${this.apiUrl}lists/${listId}/members`;

    const data = {
      email_address: email,
      status: 'subscribed'
    };

    const headers = {
      'Content-Type': 'application/json',
      'Authorization': `Basic ${btoa(`anystring:${apiKey}`)}`
    };

    return this.http.post(url, data, { headers })
      .map(res => res.json());
  }
}