如何使用JavaScript sdk註銷我的Facebook應用程序而不是Facebook？

我已經搜索了這個，答案是非常不清楚和過時。如何使用JavaScript sdk註銷我的Facebook應用程序而不是Facebook？

所以 - 我使用Facebook的Javascript SDK，讓人們登錄和離開我的網站。當他們註銷時，我希望他們能夠保持登錄到Facebook。

我使用標準代碼：

<!DOCTYPE html> 
<html> 
<head> 
<title>Facebook Login JavaScript Example</title> 
<meta charset="UTF-8"> 
</head> 
<body> 
<script> 
    // This is called with the results from from FB.getLoginStatus(). 
    function statusChangeCallback(response) { 
    console.log('statusChangeCallback'); 
    console.log(response); 
    // The response object is returned with a status field that lets the 
    // app know the current login status of the person. 
    // Full docs on the response object can be found in the documentation 
    // for FB.getLoginStatus(). 
    if (response.status === 'connected') { 
     // Logged into your app and Facebook. 
     testAPI(); 
    } else if (response.status === 'not_authorized') { 
     // The person is logged into Facebook, but not your app. 
     document.getElementById('status').innerHTML = 'Please log ' + 
     'into this app.'; 
    } else { 
     // The person is not logged into Facebook, so we're not sure if 
     // they are logged into this app or not. 
     document.getElementById('status').innerHTML = 'Please log ' + 
     'into Facebook.'; 
    } 
    } 

    // This function is called when someone finishes with the Login 
    // Button. See the onlogin handler attached to it in the sample 
    // code below. 
    function checkLoginState() { 
    FB.getLoginStatus(function(response) { 
     statusChangeCallback(response); 
    }); 
    } 

    window.fbAsyncInit = function() { 
    FB.init({ 
    appId  : '#######', 
    cookie  : true, // enable cookies to allow the server to access 
         // the session 
    xfbml  : true, // parse social plugins on this page 
    version : 'v2.2' // use version 2.2 
    }); 

    // Now that we've initialized the JavaScript SDK, we call 
    // FB.getLoginStatus(). This function gets the state of the 
    // person visiting this page and can return one of three states to 
    // the callback you provide. They can be: 
    // 
    // 1. Logged into your app ('connected') 
    // 2. Logged into Facebook, but not your app ('not_authorized') 
    // 3. Not logged into Facebook and can't tell if they are logged into 
    // your app or not. 
    // 
    // These three cases are handled in the callback function. 

    FB.getLoginStatus(function(response) { 
    statusChangeCallback(response); 
    }); 

    }; 

    // Load the SDK asynchronously 
    (function(d, s, id) { 
    var js, fjs = d.getElementsByTagName(s)[0]; 
    if (d.getElementById(id)) return; 
    js = d.createElement(s); js.id = id; 
    js.src = "//connect.facebook.net/en_US/sdk.js"; 
    fjs.parentNode.insertBefore(js, fjs); 
    }(document, 'script', 'facebook-jssdk')); 

    // Here we run a very simple test of the Graph API after login is 
    // successful. See statusChangeCallback() for when this call is made. 
    function testAPI() { 
    console.log('Welcome! Fetching your information.... '); 
    FB.api('/me', {fields: 'name,email'}, function(response) { 
     console.log('Successful login for: ' + response.name); 
     document.getElementById('status').innerHTML = 
     'Thanks for logging in, ' + response.name + '!'; 
    }); 
    } 

</script> 

<!-- 
    Below we include the Login Button social plugin. This button uses 
    the JavaScript SDK to present a graphical Login button that triggers 
    the FB.login() function when clicked. 
--> 

<fb:login-button data-auto-logout-link="true" scope="public_profile,email" onlogin="checkLoginState();"> 
</fb:login-button> 

<div id="status"> 
</div> 

</body> 
</html>

來源

2015-12-22 Mikołaj Marciniak

不可能的。原因是有人可能會去您的網站並使用Facebook登錄，這意味着他們也登錄到Facebook。所以當他們註銷時，他們也需要從Facebook登出 – WizKid

不是不可能的。查看網站http://www.myfitnesspal.com –

完美！我自己想清楚了。答案是兩部分。您需要撤銷訪問權限。你在你的javascript做到這一點是這樣的：

function logoutFacebook() 
    { 
     FB.getLoginStatus(function(response) { 
      if (response.status === 'connected') { 
      // the user is logged in and has authenticated your 
      // app, and response.authResponse supplies 
      // the user's ID, a valid access token, a signed 
      // request, and the time the access token 
      // and signed request each expire 
      var uid = response.authResponse.userID; 
      var accessToken = response.authResponse.accessToken; 

      FB.api('/'+uid+'/permissions', 'delete', function(response){}); 

      } else if (response.status === 'not_authorized') { 
      // the user is logged in to Facebook, 
      // but has not authenticated your app 
      } else { 
      // the user isn't logged in to Facebook. 
      } 
     }); 
    }

然後，添加一個按鈕來火了該功能：

<button id="logout" onclick="logoutFacebook()">Logout</button>

來源

2015-12-22 12:07:50

您沒有登錄用戶。正如我所說，還有一個原因是你也從Facebook註銷。 – WizKid

這是錯誤的，它與問題矛盾，這將取消授權您的應用程序，而不是註銷！ – wpcoder

如何使用JavaScript sdk註銷我的Facebook應用程序而不是Facebook？

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