Inject facebook api into the controller of AngularJS

This function is called by a ng-click on a button in my view, but is not returning anything on the console.

Can anyone help me?

$scope.shareContent = function(){
    window.fbAsyncInit  = function(){
        FB.init({
            appID   : '1565222510432359',
            status  : true,
            xfbml   : true,
            version : 'v2.3'
        });

        var obj  = {
            method  : 'feed',
            name    : 'Teste',
            link    : 'https://developers.facebook.com/docs/',
            caption : 'teste exemplo'
        }

        FB.ui(obj,function(response){}); 
    };
}