Category: Facebook

https://graph.facebook.com/debug_token?input_token=USER_ACCESS_TOKEN&access_token=APP_ACCESS_TOKEN

Reference: http://stackoverflow.com/questions/10149065/find-expire-time-for-an-access-token

GET https://graph.facebook.com/oauth/access_token?
client_id=YOUR_APP_ID
&client_secret=YOUR_APP_SECRET
&grant_type=client_credentials

Reference: https://developers.facebook.com/docs/opengraph/using-actions/

https://www.facebook.com/dialog/pagetab?app_id=YOUR_APP_ID&next=YOUR_URL

Replace “YOUR_APP_ID” with your App ID and “YOUR_URL” with your App’s Canvas URL

Reference:
http://developers.facebook.com/docs/appsonfacebook/pagetabs/

Problem:
Get the error “This application does not support integration with your profile.” when you try to add a Facebook app to a Facebook page

Solution:
Specify the “Page Tab URL” of your Facebook application

<script type=”text/javascript”>
function fbs_click() {
var u = location.href;
var t = document.title;
window.open(‘http://www.facebook.com/sharer.php?u=’+encodeURIComponent(u)+’&t=’+encodeURIComponent(t),’sharer’,’toolbar=0,status=0,width=626,height=436′);
return false;
}
</script>
<a rel=”nofollow” href=”http://www.facebook.com/share.php?u=<url>” onclick=”return fbs_click()” target=”_blank”>Share on Facebook</a>

Problem
CurlException: 60: SSL certificate problem, verify that the CA cert is OK. Details: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed

Solution
Adding the following code:
Facebook::$CURL_OPTS[CURLOPT_SSL_VERIFYPEER] = false;
Facebook::$CURL_OPTS[CURLOPT_SSL_VERIFYHOST] = 2;

1. Enter the following site
http://developers.facebook.com/tools/lint/

2. Enter the url of your page and click “Lint”

Error:
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; Tablet PC 2.0; .NET4.0C)
Timestamp: Mon, 13 Dec 2010 14:00:09 UTC

Message: Permission denied
Line: 16
Char: 2188
Code: 0
URI: http://connect.facebook.net/en_US/all.js

Solution:
Add domain param here:
$facebook = new Facebook(array(
‘appId’  => ‘xxx’,
‘secret’ => ‘xxx’,
‘cookie’ => true,
‘domain’ => ‘mydomain.com’
));

FB.Event.subscribe(‘edge.create’, function(href, widget) {
Log.info(‘You liked ‘ + href, widget);
});

Errors while loading page from application
Parse errors:
FBML Error (line 11): illegal tag “body” under “fb:tab-position”

If you are using IIS, you may see the above message when you add a tab to your facebook page. It is because IIS doesn’t allow POST requests to html files by default.

Solution 1: Configure your IIS to accept POST requests to html files

Solution 2: Change your .html into .php