how to display the json data in the form of xml

Can anyone help to fetch data from .json file and view it in xml? thank you

here the code

var args = arguments[0] || {};
 
var apiHelper = require('apiHelper');
 
var listNews = Alloy.Collections.groupList;
//get all categories in news
var unique = {};
var categories = [];
var selectedCategoryIndex = 0;
 
var itemPerPage = 10;
var currentPage = 0;
var maxPage = 0;
 
var result = [];
 
function getAllNews(){
    if (Ti.Network.online){
        console.log('calling get all group 1');
        Alloy.Globals.showActivityIndicator();
        console.log('calling get all group 2');
        apiHelper.APIGetRequest(Alloy.Globals.ApiURL + "/getGroupList", function(e) {
            //if success
            console.log('calling get all group 3');
            var items = [];
            console.log('response get news : ' + this.responseText);
            var result = JSON.parse(this.responseText);
 
            for(var i = 0; i < result.length; i++){
                var data = {
                    userId : {real : result[i].userId},
                    groupName : { text : result[i].groupName}
                };
                items.push(data);
                console.log('calling get all group 4');
            }
 
            $.newsList.sections[0].setItems(items);
 
            if (OS_ANDROID) {
                var toast = Ti.UI.createNotification({
                    message : "News Updated",
                    duration : Ti.UI.NOTIFICATION_DURATION_SHORT
                });
                toast.show();
            }
            Alloy.Globals.hideActivityIndicator();
        }, function(e){
            //if error
            Alloy.Globals.hideActivityIndicator();
        });
    }
    else{
        if (OS_ANDROID) {
            var toast = Ti.UI.createNotification({
                message : "Can't connect to the internet",
                duration : Ti.UI.NOTIFICATION_DURATION_LONG
            });
            toast.show();
        } else {
            Alloy.Globals.showMessageBox('Error', "Can't connect to the internet", 'OK', null);
        }
    }
}
 
getAllNews();
 
// function reload(){
    // getAllNews();
    // $.refresh.setRefreshing(false);
// }

{
"message": "Data berhasil didapatkan",
"response": "success",
"groupList": [
{
"id": 60,
"active": 1,
"userId": 21,
"groupName": "addgroupname",
"createdBy": "admin",
"creationDate": 1423560031070,
"lastUpdatedBy": null,
"lastUpdatedDate": null
},
etc...