Facebook Like notifications? - facebook

Question

I saw a website today that stated: "Share/Like this site and get 10% discount". I was wondering: is there any way to track when someone shares/likes my site? Can I store some data of that user in my app?
I know those events have some callbacks, and maybe I can trigger some jQuery magic to send some data vía ajax when the user clicks on the button.
Any ideas?
Thanks!

Answer 1

Similar question was discussed here
FB.Event.subscribe('edge.create', function(href)
{
});
From the above code you can get only href not any User details. So I tired the following code
FB.Event.subscribe('edge.create', function (href) {
FB.login(function (response) {
if (response.session) {
//session object has uid & access token.
}
});
});
The Problem you will have from above code is: Since FB.login will open a pop up window for log in, some browsers will block the pop up or warns the user.
I tried the above code. LIKE functionality works and is posted to user's wall, but regarding getting user info:
Firefox (4.0) - did not warn but it asked the user to authorize APP and access basic information. IE 9 - Gave a warning message about POP UP. Google Chrome : Blocked the log in pop up.
It seems the only way to achieve this is let the user login to website using Facebook Connect first and then get user info using
FB.Event.subscribe('edge.create', function (href) {
// href is the URL of the object that got liked
var x;
FB.getLoginStatus(function (response) {
alert(response);
if (response.session) {
}
});

Answer 2

Check out the Facebook developers site. It contains heaps of information.
http://developers.facebook.com/search?q=Events.create
and
http://developers.facebook.com/blog/post/149/

Answer 3

Something like this should do what you need:
<fb:like href="http://www.google.com"></fb:like>
<!-- Like button to whatever object you want^^ -->
<div id="fb-root"></div>
<script src="http://connect.facebook.net/en_US/all.js"
type="text/javascript" charset="utf-8"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"
type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" charset="utf-8">
FB.init({
appId: 'APP_ID',
status: true,
cookie: true,
xfbml: true
});
FB.Event.subscribe('edge.create', function(href)
{
// href is the URL of the object that got liked
// do whatever magic ajax you want
});
</script>