javascript - Facebook 获取访问 token

Question

如何使用 Facebook Graph API 获取“访问 token ”。我有应用程序 ID、用户的用户名和密码。我只需要获取访问 token ，这样我就可以访问新闻提要……以及其他内容。

Answer 1

好的，您需要在 JavaScript 中获取用户的 access_token。给你:

1. 开始阅读 JavaScript SDK documentation

2. 像下面这样的东西会让你开始:

   <div id="fb-root"></div>
   <script>
   window.fbAsyncInit = function() {
       FB.init({
           appId      : 'YOUR_APP_ID', // App ID
           channelUrl : '//WWW.YOUR_DOMAIN.COM/channel.html', // Channel File
           status     : true, // check login status
           cookie     : true, // enable cookies to allow the server to access the session
           xfbml      : true  // parse XFBML
       });
       // this shouldn't be called directly, but instead should be initiated with a user click event
       FB.login(function(response) {
           if (response.authResponse) {
               console.log('Access Token: ' + response.authResponse.accessToken);
           } else {
               console.log('User cancelled login or did not fully authorize.');
           }
       });
   
   };
   
   // Load the SDK Asynchronously
   (function(d){
       var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
       if (d.getElementById(id)) {return;}
       js = d.createElement('script'); js.id = id; js.async = true;
       js.src = "//connect.facebook.net/en_US/all.js";
       ref.parentNode.insertBefore(js, ref);
   }(document));
   </script>
   

3. 如 documentation 中所述:

   Calling FB.login results in the JS SDK attempting to open a popup window. As such, this method should only be called after a user click event, otherwise the popup window will be blocked by most browsers.

4. 从不 从不 询问用户密码，如果要求，也不将其提供给任何应用程序你!如果有，请直接向 Facebook 报告!

5. 是“JavaScript”而不是“Java Script”:-)