facebook share button which returns a boolean [closed]

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I'm a newbie regarding this kind of coding, and I would really appreciate your help. However, I would like to know if it's possible to make the share button return a boolean which gives true once the content has been shared.

I need it cause my website is about winning various stuff and the sharing action will give points to users.

Ps. My script is in php.

Thanks in advance, bye.

Answer 1

Yes, the Facebook JavaScript API takes a callback that indicates if the post was successful:

FB.api( '/{page-id}/feed', 'POST', {
        message: 'Check out this cool link!',
        link: 'http://coollink.com'
    },
    function (response) {
        if (response && !response.error) {
            // post successful
        } else {
            // post unsuccessful
        }
    }
);

Documentation here: https://developers.facebook.com/docs/graph-api/reference/page/feed/