如何在FB.Event.subscribe之外访问uid + accesstoken?

时间:2013-05-23 13:28:16

标签: facebook facebook-graph-api facebook-javascript-sdk

我成功运行了FB.Event.subscribe并可以从该函数中输出uidaccesstoken - 但我想知道我将如何访问uid和基本上来自任何地方的accesstoken

我最初的想法是我需要在函数之外声明一个全局uid和accesstoken var - 但是到目前为止我没有运气 - 当我尝试输出全局变量时我得到undefined

我的代码就在开始<body>标记之后:

<body>
<div id="fb-root"></div>
<script>
//Declaring global var for uid and token
var uid;
var accessToken;

$(document).ready(function(){

  function facebookReady(){
    FB.init({
      appId      : '357646666347166', // App ID
      channelUrl : '//localhost/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
      });

    $(document).trigger("facebook:ready");
  }

  if(window.FB) {
    facebookReady();
  } else {
    window.fbAsyncInit = facebookReady;
  }
});

  // 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>

我的代码放在结束</body>标记之前 - 这也是我尝试访问全局uid和令牌的地方:

<script>
$(document).on("facebook:ready", null,  function(){

    FB.Event.subscribe('auth.authResponseChange', function(response) {
      // Here we specify what we do with the response anytime this event occurs. 
      if (response.status === 'connected') {
// Setting the uid + token
        uid = response.authResponse.userID;
        accessToken = response.authResponse.accessToken;
//
      }
    });

        // Trying to access the UID OR TOKEN HERE:   
          console.log(uid);
          console.log(accessToken);
        // Trying to access the UID OR TOKEN HERE:   
});

</script>
<!-- some included js file where I also want to access the UID -->
<script src="js/animation.js"></script>

1 个答案:

答案 0 :(得分:0)

我用来将我的accessToken存储在一个全局变量中,它没有问题。这里的问题是uid和accessToken都只在各自的脚本标签中有作用域,因此在FB.Event.subscribe中声明的uid和accessToken是它们自己的值;与“全局变量”分开,谁的范围仅限于FB.Event.subscribe。

据说所有你需要的是 FB.getAccessToken()

使用jQuery通过ajax请求检索数据的示例:

$.ajax({
    url: "myQuery.php",
    data: { accessToken: FB.getAccessToken() }
}).done(function(data) {
    doStuff(data);
});

您还可以通过 FB.getUserID()

检索uid