Facebook API - Run javascript after user has logged in
Question
at the minute I have this:
<div id="fb-root"></div>
<script src="http://connect.facebook.net/en_US/all.js"></script>
<script>
window.fbAsyncInit = function() {
FB.init({ appId:'188492754501683', cookie:true, status:true, xfbml:true });
};
</script>
<fb:login-button perms="email">
login with Facebook
</fb:login-button>
I want to run some code to pull the email aswell, say this:
FB.api('/me', function(res) { if (res != null) { alert(res.email); } } );
When I added this under the call to FB.init(), it was run as soon as the window loaded, which is understandable but not what I wanted.
I want the code to run AFTER the user has clicked the Login With Facebook button, and then successfully logged in, etc.
Can anyone point me in the right direction, I've searched google but can't seem to find anything:/
Thanks in advance, Tom.
1 answers
solution1
3 ACCPTED 2011-05-31 11:06:06
you can use the events for this:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr" lang="en-US" xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
<title>Facebook Test</title>
</head>
<body>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({appId: 'YOUR_APP_ID', status: true, cookie: true, xfbml: true});
FB.Event.subscribe('auth.login', function(response) {
// user logedin
});
};
(function() {
var e = document.createElement('script');
e.type = 'text/javascript';
e.src = document.location.protocol +
'//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
</script>
<fb:login-button perms="email">
Login with Facebook
</fb:login-button>
</body>
</html>
see http://developers.facebook.com/docs/reference/javascript/FB.Event.subscribe/ for more events you could subscribe to.
updated with full example
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