Facebook browser sharing

FacebookShareStrategy

  function FacebookShareStrategy(user, $http) {
    var url,
      userId = user.id,
      userToken = user.token;

    this.share = function (message, photos, htmlPresentation) {
      url = 'https://graph.facebook.com/' + userId +
        '/feed?callback=JSON_CALLBACK&message=' + message +
        picture(photos) + presentation(htmlPresentation) +
        '&access_token=' + userToken;

      return $http.post(url).
        then(function (data) {
          return data;
        },function () {
          console.log('Could not get data');
        });

    };

    function picture(photos) {
      var data = '';

      if (photos[0]) {
        data = '&picture=' + photos[0].src;
      }

      return data;
    }

    function presentation(link) {
      var data = '&link=' + link;

      return data;
    }

  }

using example

this.shareOnFb = function(message, photos, htmlPresentation, socialOptions, observer) {
          new FacebookShareStrategy(socialOptions, $http)
            .share(message, photos, htmlPresentation)
            .then(function(){
              observer.onSharedViaFb();
            });
        };