Hi I'm new to sharepoint. So I'm trying to develeop sharepoint online app. But there is an error here and I can't find how solve this issue. Error is :

Access denied. You do not have permission to perform this action or access this resource.

App deployed to sharepoint online site. I wrote a script into App.js

function initializePage()

    var hostUrl = decodeURIComponent(getQueryStringParameter("SPHostUrl"));
    var currentcontext = new SP.ClientContext.get_current();
    var context = new SP.AppContextSite(currentcontext, hostUrl);
    var web = context.get_web(); 

    var slider_list = web.get_lists().getByTitle("Slider");

    //var context = SP.ClientContext.get_current();
    //var user = context.get_web().get_currentUser();

    var user = web.get_currentUser();

    // This code runs when the DOM is ready and creates a context object which is needed to use the SharePoint object model
    $(document).ready(function () {

    // This function prepares, loads, and then executes a SharePoint query to get the current users information
    function getUserName() {

        currentcontext.executeQueryAsync(onGetUserNameSuccess, onGetUserNameFail);

        currentcontext.executeQueryAsync(onSuccess, onFail);

    // This function is executed if the above call is successful
    // It replaces the contents of the 'message' element with the user name
    function onGetUserNameSuccess() {
        $('#message').text('Hello ' + user.get_title());

    // This function is executed if the above call fails
    function onGetUserNameFail(sender, args) {
        alert('Failed to get user name. Error:' + args.get_message());

    function onSuccess() {



    // This function is executed if the above call fails
    function onFail(sender, args) {

    function getQueryStringParameter(urlParameterKey) {
        var params = document.URL.split('?')[1].split('&');
        var strParams = '';
        for (var i = 0; i < params.length; i = i + 1) {
            var singleParam = params[i].split('=');
            if (singleParam[0] == urlParameterKey)
                return decodeURIComponent(singleParam[1]);

But I get this error everytime which is wrote above. I hope anyone help me.

  • Do you have full control over the site?
    – Keerthi
    Sep 29, 2016 at 15:11

1 Answer 1


Double Click your AppManifest.xml and hit the Permissions tab. Add the Site collection and request Full Control for your app

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