angular - 如何以 Angular 2获取谷歌联系人

Question

我正在尝试在我的 Angular 2 项目中获取谷歌联系人这是我的代码，请帮助我，在此先感谢。在组件中我这样做了:

googleContacts(){
        this.contactService.googleLogin()
        .subscribe(
                response => {
                    this.logger.info("addContactComponent googleContacts(): "+ response);
                    window.location.href = ""+ response; 

                },
                error => this.logger.error( error ),
                () => this.logger.info( "google_contacts() finished" )
                )
        }

在服务中我是这样做的:

googleLogin():Observable<Response> {
       this.logger.info(this.googleContactsUrl+"authorizeLogin?access_token=" + this.authenticationService.access_token);
        return this._http.get(this.googleContactsUrl+"authorizeLogin?access_token=" + this.authenticationService.access_token)
        .map((response: any) => response);
    }

在 html 中:

<button style="margin: -8px; background-color: white" (click) = "googleContacts()"></button >

Answer 1

这就是我在 Angular4 中使用它的方式。首先，您需要在 index.html 中包含 Google API 脚本:

  <script src="https://apis.google.com/js/platform.js"></script>
  <script src="https://apis.google.com/js/client.js"></script>

将 gapi 类型添加到您的项目中

npm install --save @types/gapi
npm install --save @types/gapi.auth2

在你的组件中，

ngOnInit() {
  this.authConfig = {
    client_id: '<YOUR-CLIENT-ID>',
    scope: 'https://www.googleapis.com/auth/contacts.readonly'
  };
}

googleContacts() {
  gapi.client.setApiKey('<YOUR-API-KEY>');
  gapi.auth2.authorize(this.authConfig, this.handleAuthorization);
}

handleAuthorization = (authorizationResult) => {
  if (authorizationResult && !authorizationResult.error) {
    let url: string = "https://www.google.com/m8/feeds/contacts/default/thin?" +
       "alt=json&max-results=500&v=3.0&access_token=" +
       authorizationResult.access_token;
    console.log("Authorization success, URL: ", url);
    this.http.get<any>(url)
      .subscribe(
        response => {
          if (response.feed && response.feed.entry) {
            console.log(response.feed.entry);
          }
        }
      )
  }
}

不要忘记导入 gapi 类型，否则你会得到 gapi 未定义的错误；

import { } from '@types/gapi';
import { } from '@types/gapi.auth2';

此外，如果您使用的是 Chrome，您可能需要允许来自您的应用程序域的弹出窗口，否则 Google API 身份验证将无法继续。参见 this question在 stackoverflow 上。