Ajax Posr

YUIAjaxPost.js

        var cfg = {
            method: 'POST',
            data: '{"clientname": "Test"}',
            headers: { 'Content-Type': 'application/json' },
            on: { success: function (id, o, args) {
                Y.log('Success');
            },
                failure: function () {
                    Y.log('Post Error');
                }
            }
        };
        var request = Y.io('/ControllerName/Actionname', cfg);