apiCall: function(params) {
                var user = Session.get('username')
                var pass = Session.get('password')

                // remove params we can't override
                delete params.beforeSend

                params.url = baseApiUrl + Session.get('twitter_id') + params.url

                var ajaxParams = _.extend({
                    beforeSend: function ( xhr ) {
                        xhr.setRequestHeader('Authorization', "Basic ".concat(btoa(user.concat(':', pass))));
                    }

                }, params)

                $.ajax(ajaxParams)
            }