Like a Facebook Wall Post - Javascript

Question

I'm developing a Facebook application that retrieves specific facebook wall posts. I simply want to allow the user to "like" the post from within my application using the javascript sdk. Anyone know how to accomplish this?

Florentinaflorentine

Answer 1

UPDATE:
Issuing a POST request to the likes connection of the post object is all you need:

You can like a Post by issuing a HTTP POST request to the POST_ID/likes connection with the publish_stream permission. No parameters necessary.

Example:

FB.api("/POST_ID/likes", 'post',function(response) {
    if(response === true) {
        alert("done!");
    }
});

The above request should return true on success.

Kith

Thanks you very much. I really wish Facebook would put some of their billions into better documentation. – Florentinaflorentine

nevermind. I deleted the comment. However, as a follow-up, What would be the best way to determine whether or not a user already likes a particular post. I thought about returning all the likes for a particular post, looping through the values and testing each one against the user's id, but that doesn't seem like an efficient solution. – Florentinaflorentine

@rollsRLS8822: how about asking a new question for that? :-) – Kith

Do you need a special permission for this? – Breann

@Prabhu: Yes, publish_stream:Enables your application to post content, comments, and **likes** to a user's stream and to the streams of the user's friends. – Kith