我需要能够使用Facebook Javascript SDK发布到用户的业务页面。
我已经成功地将我的用户登录到Facebook，但是当我尝试使用一个函数发布到用户页面时，什么也没有发生。我什至尝试将自己的页面ID手动输入到该函数中以使其正常运行，但仍然没有任何反应。
我使用从Facebook文档中获得的以下JavaScript登录我的用户，并且可以正常运行。
<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 {
// The person is not logged into your app or we are unable to tell.
document.getElementById('status').innerHTML = 'Please log ' +
'into this app.';
}
}
// 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 : 'my app id',
cookie : true, // enable cookies to allow the server to access
// the session
xfbml : true, // parse social plugins on this page
version : 'v3.3' // The Graph API version to use for the call
});
// 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 = "https://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', function(response) {
console.log('Successful login for: ' + response.name);
document.getElementById('status').innerHTML =
'Thanks for logging in, ' + response.name + '!';
});
}
</script>
然后，我更改了代码，以添加一个名为postapi（）的函数来测试已登录用户页面上的帖子，如下所示：
<script>
function postapi() {
FB.api(
'/{your-page-id}/feed',
'POST',
{ "message": "Awesome!" },
function (response) {
// Insert your code here
});
}
// 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 {
// The person is not logged into your app or we are unable to tell.
document.getElementById('status').innerHTML = 'Please log ' +
'into this app.';
}
}
// 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 : 'my app id',
cookie : true, // enable cookies to allow the server to access
// the session
xfbml : true, // parse social plugins on this page
version : 'v3.3' // The Graph API version to use for the call
});
// 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 = "https://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', function(response) {
console.log('Successful login for: ' + response.name);
document.getElementById('status').innerHTML =
'Thanks for logging in, ' + response.name + '!';
});
}
</script>
然后我使用按钮打开登录对话框，并请求以下适当权限：
<fb:login-button scope="manage_pages,publish_pages,pages_show_list" onlogin="checkLoginState();">
</fb:login-button>
我通过如下所示在文本框中显示用户访问令牌，成功地测试了它是否真正存储了用户的访问令牌：
function placetoken() {
var user_access_token = FB.getAuthResponse()['accessToken'];
document.getElementById("<%=TextBox1.ClientID%>").value=user_access_token;
}
我现在需要能够使用用户访问令牌来获取用户管理的页面列表（包括页面ID和页面访问令牌），以便他们可以选择要发布的页面。
我尝试过：
var user_pages=FB.api('/me/accounts', 'GET');
但是我不知道如何捕获api返回的信息。
我希望能够使用Facebook Javascript SDK登录用户并发布到其业务页面。
答案 0 :(得分：0)
在页面feed上发布需要一个对该特定页面有效的页面令牌，包括页面管理员授予的所有必需权限。因此，您首先需要获取具有登录名的manage_pages权限，为该特定页面请求页面令牌（例如，通过/ me / accounts），然后进行实际的发布feed调用。
答案 1 :(得分：0)
要发布到页面（作为页面，这是唯一的选择），您需要执行以下操作：
manage_pages和publish_pages权限进行授权。/page-id?fields=access_token /me/feed发布带有页面令牌的示例请求：
FB.api(
'/me/feed',
'POST',
{message: 'Awesome!', access_token: 'the-page-token'},
function (response) {
// Insert your code here
}
);
请注意，除非您将应用程序启用并获得Facebook审核的必需权限，否则只有在该应用程序中具有角色的用户才能看到该新帖子。