SharePoint App part when fetch all the users from User profi

Question

Hi,

I am trying to fetch all the user from SharePoint online(Office 365) User profile in SharePoint App Part(Client web part).

My code is

function getAllUsers() {

//alert('GetallUserExecuted..');

var ctx = new SP.ClientContext(appWebUrl);//Get the SharePoint Context object based upon the URL

var appCtxSite = new SP.AppContextSite(ctx, hostWebUrl);

var web = appCtxSite.get_web(); //Get the Site

//Textbox value containing search term

var searchTerm = $("[Id*='peoplePickerDiv_TopSpan_i:0#.f|membership|'][Id*='_ProcessedUser']")[0].id.split('|')[2].split('_')[0];

clientContext = new SP.ClientContext.get_current();

//Building Keyword query for the search

var keywordQuery = new Microsoft.SharePoint.Client.Search.Query.KeywordQuery(ctx);

keywordQuery.set_queryText(searchTerm);

keywordQuery.set_sourceId("B09A7990-05EA-4AF9-81EF-EDFAB16C4E31");

keywordQuery.set_rowLimit(500);

keywordQuery.set_trimDuplicates(false);

var searchExecutor = new Microsoft.SharePoint.Client.Search.Query.SearchExecutor(ctx);

results = searchExecutor.executeQuery(keywordQuery);

ctx.executeQueryAsync(onQuerySuccess, onQueryError);

}

function onQuerySuccess() {

var testing = results.m_value.ResultTables[0];

$.each(results.m_value.ResultTables[0].ResultRows, function () {

users.push(this.AccountName);

});

fetchProfilePropertiesForUsers();

}

function onQueryError(sender, args) {

alert(args.get_message());

}

This code is working for SharePoint hosted app but can't work on App Part or Client web part.

If i used this code in App Part its getting error Invalid Request.

Please suggest me Where I am doing mistake.

Thanks

Akash Anand