SpContext.CreateUserClientContextForSPHost() returns null on Provider-hosted app

I have been working with Apps for SharePoint for the past 1 year. But suddenly spContext.CreateUserClientContextForSPHost() returns null and not able to work on provider-hosted app.
Note: Same code has been worked perfectly before and all of a sudden it is not working... (tried re-install of office tools for visual studio 2013)
Please help me to resolve this issue.
Server Error in '/' Application.
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 35: using (var clientContext = spContext.CreateUserClientContextForSPHost())
Line 36: {
Line 37: clientContext.Load(clientContext.Web, web => web.Title);
Line 38: clientContext.ExecuteQuery();
Line 39: Response.Write(clientContext.Web.Title);
Source File: d:\Demo\SharePointApp2\SharePointApp2Web\Pages\Default.aspx.cs Line: 37

Hi Rajkumar,
Please refer below link,
http://www.looselytyped.net/2013/06/26/sharepoint-app-tools-in-visual-studio-2013-preview-the-new-sharepointcontext-helper/
Please let us know if you need any help on this.
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Provider-hosted Apps debug error: The remote server returned an error: (401) unauthorised

Hi,
Any help appreciated!!
I'm getting this error: "The remote server returned an error: (401) unauthorised when I debug a provider-hosted app. I get the error on this line:
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
See code below
I created a high trust development environment following the instructions provided here:
http://msdn.microsoft.com/en-us/library/office/fp179901(v=office.15).aspx and
http://msdn.microsoft.com/library/office/fp179923
I created a provider-hosted app with the intent to:
create a SharePoint list in the appweb
Use self-signed certificate, tokenhepler.cs and sharepointcontext.cs to retrieve current user context and access on SharePoint. (No changes were made to tokenhelper.cs and sharepointcontext.cs)
retrieve list items from the SharePoint list in a button click event handler on a default.aspx of the remote web
What happens:
The app is deployed successfully to the Dev site
The SharePoint feature is deployed and activated
The default.aspx page of the remote web loads
The error (see image) is returned on clicking of the button
My environment is an on-premise SharePoint 2013 with AD and my dev box is standalone windows 8.1 running Visual Studio Professional 2013 Update 3.
The code block below is a copy of the default.aspx code-behind
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Microsoft.SharePoint.Client;
using Microsoft.IdentityModel.S2S.Tokens;
using System.Net;
using System.IO;
using System.Xml;
using System.Data;
using System.Xml.Linq;
using System.Xml.XPath;
namespace Idea.GeneratorWeb
public partial class Default : System.Web.UI.Page
SharePointContextToken contextToken;
string accessToken;
Uri sharepointUrl;
protected void Page_PreInit(object sender, EventArgs e)
Uri redirectUrl;
switch (SharePointContextProvider.CheckRedirectionStatus(Context, out redirectUrl))
case RedirectionStatus.Ok:
return;
case RedirectionStatus.ShouldRedirect:
Response.Redirect(redirectUrl.AbsoluteUri, endResponse: true);
break;
case RedirectionStatus.CanNotRedirect:
Response.Write("An error occurred while processing your request.");
Response.End();
break;
protected void Page_Load(object sender, EventArgs e)
//// The following code gets the client context and Title property by using TokenHelper.
//// To access other properties, the app may need to request permissions on the host web.
var spContext = SharePointContextProvider.Current.GetSharePointContext(Context);
//var spContext = new ClientContext("MySPDevInstance");
//spContext.Credentials = new NetworkCredential("username", "password");
//using (var clientContext = spContext.CreateUserClientContextForSPHost())
// clientContext.Load(clientContext.Web, web => web.Title);
// clientContext.ExecuteQuery();
// Response.Write(clientContext.Web.Title);
string contextTokenString = TokenHelper.GetContextTokenFromRequest(Request);
if (contextTokenString != null)
// Get context token
contextToken = TokenHelper.ReadAndValidateContextToken(contextTokenString, Request.Url.Authority);
// Get access token
sharepointUrl = new Uri(Request.QueryString["SPAppWebUrl"]);
accessToken = TokenHelper.GetAccessToken(contextToken, sharepointUrl.Authority).AccessToken;
// Pass the access token to the button event handler.
Button1.CommandArgument = accessToken;
protected void Button1_Click(object sender, EventArgs e)
// Retrieve the access token that the Page_Load method stored
// in the button's command argument.
string accessToken = ((Button)sender).CommandArgument;
if (IsPostBack)
sharepointUrl = new Uri(Request.QueryString["SPAppWebUrl"]);
// REST/OData URL section
string oDataUrl = "/_api/Web/lists/getbytitle('Diagrams In Idea Generator')/items?$select=Title,Diagram,SharingStatus";
// HTTP Request and Response construction section
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(sharepointUrl.ToString() + oDataUrl);
request.Method = "GET";
request.Accept = "application/atom+xml";
request.ContentType = "application/atom+xml;type=entry";
request.Headers.Add("Authorization", "Bearer " + accessToken);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
// Response markup parsing section
XDocument oDataXML = XDocument.Load(response.GetResponseStream(), LoadOptions.None);
XNamespace atom = "http://www.w3.org/2005/Atom";
XNamespace d = "http://schemas.microsoft.com/ado/2007/08/dataservices";
XNamespace m = "http://schemas.microsoft.com/ado/2007/08/dataservices/metadata";
List<XElement> entries = oDataXML.Descendants(atom + "entry")
.Elements(atom + "content")
.Elements(m + "properties")
.ToList();
var entryFieldValues = from entry in entries
select new
Character = entry.Element(d + "Title").Value,
Actor = entry.Element(d + "Diagram").Value,
CastingStatus = entry.Element(d + "SharingStatus").Value
GridView1.DataSource = entryFieldValues;
GridView1.DataBind();
Any ideas what I might be doing wrong

Hi ,
Use the below code
Public string GetAccessToken(){
string sharePointSiteUrlHost = Page.Request["SPHostUrl"].Tostring();
string AccessToken = tokenHelper.GetS2SAccessTokenWithWindowsIdentity(sharePointSiteUrlHost, Request.LogonUserIdentity);
return accessToken;
Than initialize the ClientCOntext with the below Method
private static ClientContext GetClientContextWithAccessTokenString(string targetUrl, object accessToken)
ClientContext clientContext = new ClientContext(targetUrl);
clientContext.AuthenticationMode = ClientAuthenticationMode.Anonymous;
clientContext.FormDigestHandlingEnabled = false;
clientContext.ExecutingWebRequest +=
delegate(object oSender, WebRequestEventArgs webRequestEventArgs)
webRequestEventArgs.WebRequestExecutor.WebRequest.UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)";
webRequestEventArgs.WebRequestExecutor.RequestHeaders["Authorization"] =
"Bearer " + accessToken;
return clientContext;
use this clientCOntext and it will work.
Do not use
SharePointContextProvider
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The remote server returned an error :(401) unauthorized in Provider hosted app deployment

Hi,
We are trying to deploy the provider hosted app in server environment . we are getting the "The remote server returned an error :(401) unauthorized" error after deploy the app in server.
stack Trace:
[webException:Te remote server returned an error:(401) UnAuthorized.]
System.Net.HeepWebRequest.GetResponse().
Followed the same MSDN steps , but sill same error. We have attached the certificate and using the same issuer ID in the app web.config.
Verified the IIS setting and still getting the same error when we call the "Clientcontext.ExecuteQuery()" method.
Same code is working fine in my Local dev environment.
If anyone have idea about this issue, please let me know.
Thank you,
Mylsamy

Hi ,Thank you for your response. We have tried all the options and everything is same (Client ID,Issuer ID...etc) and finally figured out the issue.The below link saved my day.http://msdn.microsoft.com/en-us/library/office/dn762439(v=office.15).aspxIn "TokenHelper.cs" GetRealmFromTargetUrl method always return null andWhen we analyze the issue we found some variable name assigned for "Realm" Instead of GUID in SP server.Power shell command to get the Realm in SP server: Get-SPAuthenticationRealmWe have followed below article to generate the new GUID for realm.http://technet.microsoft.com/en-us/library/jj219756(v=office.15).aspx$c =Get-SPServiceContext -Site "http://<websiteurl>"Set-SPAuthenticationRealm -ServiceContext $c -Realm "a686d436-9f16-42db-09b7-cb578e110ccd".
Thankyou,Mylsamy

Provider hosted app error message: The remote server returned an error: (429) Too Many Requests.

Hi,
I have a customer running a provider hosted app and in Sharepoint 2013. Things have been working fine but recently they keep experiencing an issue where the all the app parts on the page show the following error message. Does anyone have an idea what
could be causing this problem and how I can fix it? The Sharepoint site and provider hosted app site are running on a Server 2008 R2 box with IIS 7.5.
Server Error in '/Test.Sharepoint.App' Application.
The remote server returned an error: (429) Too Many Requests.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Net.WebException: The remote server returned an error: (429) Too Many Requests.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[WebException: The remote server returned an error: (429) Too Many Requests.]
System.Net.HttpWebRequest.GetResponse() +8527180
Microsoft.SharePoint.Client.SPWebRequestExecutor.Execute() +58
Microsoft.SharePoint.Client.ClientRequest.ExecuteQueryToServer(ChunkStringBuilder sb) +975
Test.Sharepoint.AppWeb.Pages.LatestAnnouncement.GetLatestAnnouncement(Boolean showFullText) +610
Test.Sharepoint.AppWeb.Pages.LatestAnnouncement.Page_Load(Object sender, EventArgs e) +764
System.Web.UI.Control.LoadRecursive() +71
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3178
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18034
Impreza Software Development

Hi GuYumming,
I have checked the Sharepoint site using Fiddler and my X-SharePointHealthScore stays consistently on 1, I have even refreshed the site and had the "(429) Too Many Requests" error happen right in front of me whilst Fiddler is running and when I look at the
200 response for the Sharepoint site it is still showing "X-SharePointHealthScore: 1".
I assume because of this I do not need to make any of the changes suggested in your article above?
I have also been through the ULS logs and found the following 3 log entries that appear to relate to the issue but they do not really mean much to me so I am hoping that you can help:
Begin CSOM Request ManagedThreadId=59, NativeThreadId=12476
SPResourceTally(ClientServiceRequestDuration) value 1 + 150425 > 150000
ResourceBudgetExceeded, sending throttled status code. Exception=Microsoft.SharePoint.SPResourceBudgetExceededException: ResourceBudgetExceeded     at Microsoft.SharePoint.SPResourceTally.Check(Int32 value)
at Microsoft.SharePoint.SPAggregateResourceTally.Check(SPResourceKind kind, Int32 value)     at Microsoft.SharePoint.Client.SPClientServiceHost.OnBeginRequest()
Impreza Software Development

Provider hosted app installed on SharePoint 2013 on premises is returning internal 500 error !

Hello,
I have deployed the basic provider hosted app on sharepoint 2013 on premises.
However when I try to run the app, its throwing an error on following as mentioned in screen:
It seems an authentication issue, would you please tell me how can I resolve it ?
Thank you in advance.
Kind Regards,
Dipti Chhatrapati

Hi,
According to your description, my understanding is that when you run provider hosted app in SharePoint 2013 on premise, the app occurs internal 500 error.
For using Managed .NET Client Object Model in Provider hosted app, it will need
TokenHelper.cs to get the ClientContext object like below:
private void RetrieveWithCSOM(string accessToken)
if (IsPostBack)
sharepointUrl = new Uri(Request.QueryString["SPHostUrl"]);
ClientContext clientContext =
TokenHelper.GetClientContextWithAccessToken(
sharepointUrl.ToString(), accessToken);
//Load the properties for the web object.
Web web = clientContext.Web;
clientContext.Load(web);
clientContext.ExecuteQuery();
//Get the site name.
siteName = web.Title;
//Get the current user.
clientContext.Load(web.CurrentUser);
clientContext.ExecuteQuery();
currentUser = clientContext.Web.CurrentUser.LoginName;
//Load the lists from the Web object.
ListCollection lists = web.Lists;
clientContext.Load<ListCollection>(lists);
clientContext.ExecuteQuery();
//Load the current users from the Web object.
UserCollection users = web.SiteUsers;
clientContext.Load<UserCollection>(users);
clientContext.ExecuteQuery();
foreach (User siteUser in users)
listOfUsers.Add(siteUser.LoginName);
foreach (List list in lists)
listOfLists.Add(list.Title);
More information:
https://msdn.microsoft.com/en-us/library/office/fp142381.aspx
Thanks
Best Regards,
Jerry Guo
TechNet Community Support
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[email protected]

Getting Client Context in Class Library for Sharepoint 2013 provider hosted app

I have created an MVC Provider hosted app.
From my controllers I can easily get the client context via:
var spContext = SharePointContextProvider.Current.GetSharePointContext(HttpContext);
But in my layout page, I have a call that gets the topnavbar and replicates it:
@foreach (var nav in HostHelper.GetNav(this))
<li class='static'>
<a class='static menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode' href='@nav.Url'>
<span class='addition-background ms-navedit flyoutArrow'>
                                                        <span class='menu-item-text'>
@nav.Title
</span>                                                   </span>
</a>
</li>
This causes an error because I am not sure how to get the clientcontext from my class. I have tried:
public static NavigationNodeCollection GetNav()
var spContext = SharePointContextProvider.Current.GetSharePointContext(System.Web.HttpContext.Current);
using (var clientContext = spContext.CreateUserClientContextForSPHost())
if (clientContext != null)
NavigationNodeCollection topNav = clientContext.Web.Navigation.TopNavigationBar;
clientContext.Load(topNav);
clientContext.ExecuteQuery();
return topNav;                                       }
return null;
put it doesnt get the client context

Hi,
According to your description, my understanding is that you want to get SharePoint provider hosted app ClientContext in the layout page.
In the layout page, it needs to use TokenHelper Class to get access token and then retrieve the ClientContext.
Here is a detailed article for your reference:
How to Get SharePoint Client Context in SharePoint Apps (Provider Hosted / SharePoint Access ) in CSOM (Client Side Object Model)
Thanks
Best Regards
TechNet Community Support
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact
[email protected]

SharePoint Provider Hosted App that can update existing SharePoint Task List

Note: I am unable to take advantage of the Microsoft.SharePoint library directly. Adding a reference results in a 32bit/64bit library mismatch error.
I have to find a solution that uses only the Microsoft.SharePoint.Client extension.
I am looking for example code where provider-hosted SharePoint App loads a SharePoint Task List View that allows users to interact with the tasks.
So far I have only been able to programmatically create and then load the SharePoint tasks list, create and populate a DataTable object and set the datasource of a GridView object to that DataTable.
I am unable to trigger my method linked to my checkbox within the gridview.
Ideally I would like to just customize a Task View that already has this functionality.
Here is my default.aspx.cs code-behind file:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using SP = Microsoft.SharePoint.Client;
namespace SPAppBasicWeb
public partial class Default : System.Web.UI.Page
protected void Page_PreInit(object sender, EventArgs e)
Uri redirectUrl;
switch (SharePointContextProvider.CheckRedirectionStatus(Context, out redirectUrl))
case RedirectionStatus.Ok:
return;
case RedirectionStatus.ShouldRedirect:
Response.Redirect(redirectUrl.AbsoluteUri, endResponse: true);
break;
case RedirectionStatus.CanNotRedirect:
Response.Write("An error occurred while processing your request.");
Response.End();
break;
protected void Page_Load(object sender, EventArgs e)
// The following code gets the client context and Title property by using TokenHelper.
// To access other properties, the app may need to request permissions on the host web.
var spContext = SharePointContextProvider.Current.GetSharePointContext(Context);
using (var clientContext = spContext.CreateUserClientContextForSPHost())
//clientContext.Load(clientContext.Web, web => web.Title);
//clientContext.ExecuteQuery();
//Response.Write(clientContext.Web.Title);
SP.ClientContext cc = new SP.ClientContext("http://server/sites/devapps");
SP.Web web = cc.Web;
SP.List list = web.Lists.GetByTitle("General Tasks");
SP.CamlQuery caml = new SP.CamlQuery();
Microsoft.SharePoint.Client.ListItemCollection items = list.GetItems(caml);
cc.Load<Microsoft.SharePoint.Client.List>(list);
cc.Load<Microsoft.SharePoint.Client.ListItemCollection>(items);
//try
//const int ColWidth = 40;
cc.ExecuteQuery();
DataTable dt = new DataTable();
dt.Columns.Add("Task Name", typeof(string));
dt.Columns.Add("ID", typeof(int));
foreach (Microsoft.SharePoint.Client.ListItem liTask in items)
DataRow dr = dt.NewRow();
dr["Task Name"] = liTask["Title"];
dr["ID"] = liTask["ID"];
//dr["chkTask"] = liTask["Checkmark"];
dt.Rows.Add(dr);
GridView1.DataSource = dt;
GridView1.DataBind();
protected void chkTask_CheckedChanged(object sender, EventArgs e)
//add code here to update Task Item by ID
Response.Write("checkbox event triggered");
Here is my simple default.aspx:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="SPAppBasicWeb.Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkTask" runat="server" OnCheckedChanged="chkTask_CheckedChanged" AutoPostBack="true" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
http://www.net4geeks.com Who said I was a geek?

Hi,
Please try to modify your code as below:
using (var clientContext = spContext.CreateUserClientContextForSPHost())
SP.Web web = clientContext.Web;
SP.List list = web.Lists.GetByTitle("General Tasks");
SP.CamlQuery caml = new SP.CamlQuery();
Microsoft.SharePoint.Client.ListItemCollection items = list.GetItems(caml);
clientContext.Load(items);
clientContext.ExecuteQuery();
If the code still not works, I suggest you debug the code or following the blog below to create a Provider-Hosted App for SharePoint and read list items from SharePoint list.
http://blogs.msdn.com/b/steve_fox/archive/2013/02/22/building-your-first-provider-hosted-app-for-sharepoint-part-2.aspx
Best Regards
Dennis Guo
TechNet Community Support

Using powershell to deploy provider-hosted app and specify remote Url instead of using appinv.aspx page

Hello all,
Could you possibly help me with provider-hosted app development/deployment process.
We developed SharePoint provider-hosted app that works just fine in development environment. Now we need to automate it's installation in test environment via powershell.
In AppManifest.xml that we are deploying we have key instead of explicit URL:
<App xmlns="http://schemas.microsoft.com/sharepoint/2012/app/manifest" Name="ShowAllRoomsApp" ProductID="{922a18aa-5592-b59a-4da9-4791baef02e7}" Version="1.0.0.0"
SharePointMinVersion="15.0.0.0">
<Properties>
<Title>SomeTitle</Title>
<StartPage>~remoteAppUrl/Pages/Default.aspx?{StandardTokens}</StartPage>
If we use as
https://technet.microsoft.com/en-us/library/jj655398.aspx recommends, we cannot specify Redirect Url as we can do this on
/_layouts/appinv.aspx
So now it seems like the only way to deploy this kind of solution is using appinv.aspx page.Or must we apply this URL in AppManifest on developing stage in Visual Studio?
What did I miss?
P. S. Even if I use /_layouts/appinv.aspx after powershell commandlets, I get error.

hi,
to deploy provider hosted app you need 2 things
1. Client ID
2. Redirect URL.
What you can do you can generate app from visual studio using clientID and URL from developer enviornment.
Now a app file is just a simple compressed zip file if you rename it as .zip and extract you will find AppManifest
inside it. So to create an app for Testing enviornment what you have to to Get the CLient ID (from AppRegNew.aspx) in testing enviornment. Unzip .App file change the AppManifest with testing client ID and URL than again zip file and rename as .app.
Now if you upload this file it will work.
To automate this scenerio i have created a simple windows Application in which i Pass the Client ID and StartURl and an App File it unzips the app file make changes to app and again zip it.
public static class AppPackageHelper
public const string StartUrlExpression = "{0}?{1}";
public const string StandardToken = "{StandardTokens}";
public static string Publish(string appPath, string ClientId,string StartUrl)
string tempDir = string.Empty;
string outPutFile = string.Empty;
try
string parentDir = System.IO.Path.GetDirectoryName(appPath);
outPutFile = System.IO.Path.Combine(parentDir, ClientId + "-Winshuttle.app");
tempDir = System.IO.Path.Combine(parentDir, ClientId.ToString());
Directory.CreateDirectory(tempDir);
int lastInd = appPath.LastIndexOf('.');
string tempPath = string.Empty;
string targetFilePath = string.Empty;
string cabPath = System.IO.Path.Combine(tempDir, System.IO.Path.GetFileNameWithoutExtension(appPath) + ".cab");
FileInfo fInfo = new FileInfo(appPath) { IsReadOnly = false };
File.Copy(appPath, cabPath);
XDocument doc = null;
string appManifest = string.Empty;
using (ZipArchive zipArch = ZipFile.Open(cabPath, ZipArchiveMode.Update))
appManifest = string.Format(@"{0}\AppManifest.xml", Directory.GetParent(cabPath).FullName);
ZipArchiveEntry manifestEntry = zipArch.Entries.LastOrDefault(e => e.Name.ToLower() == "appmanifest.xml");
manifestEntry.ExtractToFile(appManifest);
doc = XDocument.Load(appManifest);
XNamespace ns = doc.Root.GetDefaultNamespace();
string defaultUrl = string.Format(StartUrlExpression, StartUrl.TrimEnd('/'), StandardToken);
doc.Descendants(XName.Get("StartPage", ns.NamespaceName)).First().Value = defaultUrl;
doc.Descendants(XName.Get("RemoteWebApplication", ns.NamespaceName)).First().Attribute(XName.Get("ClientId")).Value = setupInfo.ClientId.ToString();
doc.Save(appManifest);
if (manifestEntry != null)
manifestEntry.Delete();
zipArch.CreateEntryFromFile(appManifest, "AppManifest.xml");
int totEnt = zipArch.Entries.Count;
for (int e = 0; e < totEnt; e++)
if (zipArch.Entries[e].Open().Length == 0)
//if (zipArch.Entries.Count > totEnt && e >= totEnt) break;
//zipArch.CreateEntry(zipArch.Entries[e].FullName);
File.Delete(appManifest);
if (File.Exists(outPutFile))
File.Delete(outPutFile);
File.Move(cabPath, outPutFile);
return outPutFile;
catch
throw;
finally
if (System.IO.Directory.Exists(tempDir))
System.IO.Directory.Delete(tempDir, true);
return outPutFile;
using System.IO.Compression.FileSystem.dll.
Also if you want to do it using powershell You need to do the same thing unzip-> changes values-> zip
So basic thing is You need to ahve only valid AppManifest file which contains 2 valid values Client Id and StartUrl
if you changes it inside appmanifest manuall than it will also work. Using above code you can create a console Application to do it. You can use powershell it just that i dont know how to zip unzip in powershell but i am pretty sure you can easily find it
on searching.
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Sharepoint provider hosted app using angularjs

I am working on a provider hosted app and trying to access the list item through REST call using angularjs. But I am not able to access the list. Is it possible to access the sharepoint list through REST call using angularjs in a provider hosted app?
Below is the code for angular:
var hostWebApp = angular.module('HostWebList', []);
Service:
hostWebApp.service('$SharePointJSOMService', function ($q, $http) {
this.getListItems = function ($scope, listTitle) {
var deferred = $q.defer();
//First we must call the EnsureSetup method
JSRequest.EnsureSetup();
var hostweburl = decodeURIComponent(JSRequest.QueryString["SPHostUrl"]);
var appweburl = decodeURIComponent(JSRequest.QueryString["SPAppWebUrl"]);
var restQueryUrl = hostweburl + "/_api/web/lists/getbytitle('ListName')/items";
var executor = new SP.RequestExecutor(hostweburl);
executor.executeAsync({
url: restQueryUrl,
method: "GET",
headers: { "Accept": "application/json; odata=verbose" },
success: function (data, textStatus, xhr) {
deferred.resolve(JSON.parse(data.body));
error: function (xhr, textStatus, errorThrown) {
alert("request failed");
alert(textStatus);
//getting -1003
alert(JSON.stringify(xhr));
//{"responseAvailable":false,"body":,"Header":null}
deferred.reject(JSON.stringify(xhr));
return deferred.promise;
Controller:
hostWebApp.controller('HostWebListController', function ($scope, $SharePointJSOMService) {
$scope.listItem = null;
var listName = "IncomingEmail";
var promise = $SharePointJSOMService.getListItems($scope, listName);
promise.then(function (data) {
$scope.listItem = data.d.results;
alert($scope.listItem);
console.log("came inside the promise success method");
}, function (data) {
console.log("Error " + data);
Following javascript files I have included:
<script type="text/javascript" src="/_layouts/15/sp.runtime.js"></script>
<script type="text/javascript" src="/_layouts/15/sp.js"></script>
<script type="text/javascript" src="/_layouts/15/SP.RequestExecutor.js"></script>
<script type="text/javascript" src="/_layouts/15/init.debug.js"></script>
angular.js included.
I don't know what is the problem. Can anybody walk me through the problem. will be great help.

Your REST request must be authenticated. So you must send the access token in the authorization header along with your request. The following link explains how you can get the access token when you using a provider hosted app.
http://blog.mastykarz.nl/using-sharepoint-rest-api-in-provider-hosted-apps/
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SharePoint Provider Hosted App

Hi all,
I'm new in SP online development, and I want to know how can I open
a SharePoint Provider Hosted App in visual studio?
what are the steps?
can I use it if I'm not using Azure?
thank's!!

Hi,
Please try to modify your code as below:
using (var clientContext = spContext.CreateUserClientContextForSPHost())
SP.Web web = clientContext.Web;
SP.List list = web.Lists.GetByTitle("General Tasks");
SP.CamlQuery caml = new SP.CamlQuery();
Microsoft.SharePoint.Client.ListItemCollection items = list.GetItems(caml);
clientContext.Load(items);
clientContext.ExecuteQuery();
If the code still not works, I suggest you debug the code or following the blog below to create a Provider-Hosted App for SharePoint and read list items from SharePoint list.
http://blogs.msdn.com/b/steve_fox/archive/2013/02/22/building-your-first-provider-hosted-app-for-sharepoint-part-2.aspx
Best Regards
Dennis Guo
TechNet Community Support

Retrieve data from a list in SharePoint 2013 provider hosted App using CSOM

I have developed a provider hosted app in SharePoint 2013. As you already know, Visual Studio creates web application and SharePoint app. The web application gets hosted inside IIS and the SharePoint App in SharePoint site collection. I'm trying to get
data from a list hosted in SharePoint using CSOM. But I get ran insecure content error.
here is my code in Default.aspx
<script type="text/javascript" src="../Scripts/jquery-1.8.2.js"></script>
<script type="text/javascript" src="../Scripts/MicrosoftAjax.js"></script>
<script type="text/javascript" src="../Scripts/SP.Core.js"></script>
<script type="text/javascript" src="../Scripts/INIT.JS"></script>
<script type="text/javascript" src="../Scripts/SP.Runtime.js"></script>
<script type="text/javascript" src="../Scripts/SP.js"></script>
<script type="text/javascript" src="../Scripts/SP.RequestExecutor.js"></script>
<script type="text/javascript" src="../Scripts/App.js"></script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="Button1" type="button" value="Get title via CSOM" onclick="execCSOMTitleRequest()" /> <br />
<input id="Button2" type="button" value="Get Lists via CSOM" onclick="execCSOMListRequest()" />
</div>
<p ID="lblResultTitle"></p><br />
<p ID="lblResultLists"></p>
</form>
</body>
</html>
and App.js is:
var hostwebUrl;
var appwebUrl;
// Load the required SharePoint libraries
$(document).ready(function () {
//Get the URI decoded URLs.
hostwebUrl =
decodeURIComponent(
getQueryStringParameter("SPHostUrl")
appwebUrl =
decodeURIComponent(
getQueryStringParameter("SPAppWebUrl")
// resources are in URLs in the form:
// web_url/_layouts/15/resource
var scriptbase = hostwebUrl + "/_layouts/15/";
// Load the js files and continue to the successHandler
//$.getScript(scriptbase + "/MicrosoftAjax.js",
// function () {
// $.getScript(scriptbase + "SP.Core.js",
// function () {
// $.getScript(scriptbase + "INIT.JS",
// function () {
// $.getScript(scriptbase + "SP.Runtime.js",
// function () {
// $.getScript(scriptbase + "SP.js",
// function () { $.getScript(scriptbase + "SP.RequestExecutor.js", execCrossDomainRequest); }
function execCrossDomainRequest() {
alert("scripts loaded");
function getQueryStringParameter(paramToRetrieve) {
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] == paramToRetrieve)
return singleParam[1];
function execCSOMTitleRequest() {
var context;
var factory;
var appContextSite;
var collList;
//Get the client context of the AppWebUrl
context = new SP.ClientContext(appwebUrl);
//Get the ProxyWebRequestExecutorFactory
factory = new SP.ProxyWebRequestExecutorFactory(appwebUrl);
//Assign the factory to the client context.
context.set_webRequestExecutorFactory(factory);
//Get the app context of the Host Web using the client context of the Application.
appContextSite = new SP.AppContextSite(context, hostwebUrl);
//Get the Web
this.web = context.get_web();
//Load Web.
context.load(this.web);
context.executeQueryAsync(
Function.createDelegate(this, successTitleHandlerCSOM),
Function.createDelegate(this, errorTitleHandlerCSOM)
//success Title
function successTitleHandlerCSOM(data) {
$('#lblResultTitle').html("<b>Via CSOM the title is:</b> " + this.web.get_title());
//Error Title
function errorTitleHandlerCSOM(data, errorCode, errorMessage) {
$('#lblResultLists').html("Could not complete CSOM call: " + errorMessage);
function execCSOMListRequest() {
var context;
var factory;
var appContextSite;
var collList;
//Get the client context of the AppWebUrl
context = new SP.ClientContext(appwebUrl);
//Get the ProxyWebRequestExecutorFactory
factory = new SP.ProxyWebRequestExecutorFactory(appwebUrl);
//Assign the factory to the client context.
context.set_webRequestExecutorFactory(factory);
//Get the app context of the Host Web using the client context of the Application.
appContextSite = new SP.AppContextSite(context, hostwebUrl);
//Get the Web
this.web = context.get_web();
// Get the Web lists.
collList = this.web.get_lists();
//Load Lists.
context.load(collList);
context.executeQueryAsync(
Function.createDelegate(this, successListHandlerCSOM),
Function.createDelegate(this, errorListHandlerCSOM)
//Success Lists
function successListHandlerCSOM() {
var listEnumerator = collList.getEnumerator();
$('#lblResultLists').html("<b>Via CSOM the lists are:</b><br/>");
while (listEnumerator.moveNext()) {
var oList = listEnumerator.get_current();
$('#lblResultLists').append(oList.get_title() + " (" + oList.get_itemCount() + ")<br/>");
//Error Lists
function errorListHandlerCSOM(data, errorCode, errorMessage) {
$('#lblResultLists').html("Could not complete CSOM Call: " + errorMessage);
Any solution is appreciated.

Hi,
To retrieve data from list in your provider-hosted app using SharePoint Client Object Model(CSOM), you can follow the links below for a quick start:
http://msdn.microsoft.com/en-us/library/office/fp142381(v=office.15).aspx
http://blogs.msdn.com/b/steve_fox/archive/2013/02/22/building-your-first-provider-hosted-app-for-sharepoint-part-2.aspx
Best regards
Patrick Liang
TechNet Community Support

Redirection error An error occurred while processing your request in provider-hosted app which is hosted in Windows Azure

Hello,
I developed one simple provider hosted app and I published it in my Azure website. I also published the SharePoint App of this solution in O365 site. I'm using Visual Studio 2013 Premium edition. I've followed all the steps to do this work e.g.
generate the client ID and client secret through my O365 site and updated the AppManifest.xml as well as web.config etc. In my AppWeb project, I've TokenHelper.cs and SharePoint.cs classes.
When I'm clicking the app from my O365 site, I get the following error "An error occurred while processing your request" which is due to the following code:
protected void Page_PreInit(object sender, EventArgs e)
            Uri redirectUrl;
            switch (SharePointContextProvider.CheckRedirectionStatus(Context, out redirectUrl))
                case RedirectionStatus.Ok:
                    return;
                case RedirectionStatus.ShouldRedirect:
                    Response.Redirect(redirectUrl.AbsoluteUri, endResponse: true);
                    break;
                case RedirectionStatus.CanNotRedirect:
                    Response.Write("An error occurred while processing your request.");
                    Response.End();
                    break;
It's always executing the case RedirectionStatus.CanNotRedirect. Why?
I've checked the method "CheckRedirectionStatus" of SharePointContext.cs class completely and I am not understanding why am I getting this error.
When I browse my Azure website http://sitename.azurewebsites.net, even there I'm getting this error. I believe that error is because there is no query string parameter there e.g. SPHostURL etc.
Please let me know why I'm having this redirection error.
Thanks,
Ashish

Hi,
For a better troubleshooting,
I suggest you do as the following:
Debug the code step by step to find the reason of the issue.
For the remote debug your app from Windows Azure, you need to download Azure SDK:
http://azure.microsoft.com/en-us/downloads/
After installing the SDK, it will have “Attach Debugger” for Azure web site, you
also need to set "Attach Debugger" to on in the Windows Azure Management Portal
More detailed information about how to debug provider-hosted app:
http://blogs.technet.com/b/speschka/archive/2013/11/25/debugging-sharepoint-apps-that-are-hosted-in-windows-azure-web-sites.aspx
Best regards,
ZhengyuGuo
Forum Support
Please remember to mark the replies as answers if they help and unmark them if
they provide no help. If you have feedback for TechNet Subscriber Support, contact
[email protected]
Zhengyu Guo
TechNet Community Support

SharePoint 2013 Provider hosted App installation error

Hi All,
I am trying to install a provider hosted app in SharePoint 2013. Installation goes for about 15mins and get "Sorry, something went wrong
with adding the app. Click to retry."
Please find belw ULS details for Correlation ID:
Error when try to get access token when deploy AppInstanceId 7bcf1d9d-897a-48a1-b4f4-cd3120fd98a5 with AppPrincipalId i:0i.t|ms.sp.ext|[email protected]01b993b6. Exception=System.InvalidOperationException:
An unexpected error was returned from the delegation service. Error Code: 'invalid_client' Error Description: 'ACS65003: The clientId 'd12de581-316c-4224-b58b-e91ac2042150/www.SERVERNAME.DOMAIN.com@0d85160c-5899-44ca-acc8-db1501b993b6' is not a valid
service identity. Trace ID: 4a0c4974-94f4-4077-9a22-2ba5f0abb444 Correlation ID: 674d9839-686b-45f3-be46-31db4dc2a9d0 Timestamp: 2014-07-23 09:34:49Z'
at Microsoft.SharePoint.Administration.SPAzureAccessControlDelegationServiceClient.HandleUnexpectedError(SPAzureAccessControlDelegationServiceResponse delegationServiceResponse)
at Microsoft.SharePoint.ApplicationServices.SPApplicationContextAccessToken.GetResponseOrThrow[T](SPAzureAccessControlDelegationServiceClient delegationServiceClient, SPAzureAccessControlDelegationServiceResponse delegationServiceResponse)
at Microsoft.SharePoint.ApplicationServices.SPApplicationContextAccessToken.IssueApplicationContextAccessToken(SPServiceContext serviceContext, SPApplicationContextAccessTokenCreationParameters creationParameters)
at Microsoft.SharePoint.SPSecurityContext.SecurityTokenForApplicationContext(SPIdentityContext userIdentityContext, String applicationId, Uri applicationRealm, SPApplicationContextAccessTokenType applicationTokenType, SPApplicationDelegationConsentType
consentValue)
at Microsoft.SharePoint.SPServerToAppServerAccessTokenManager.GetAccessTokenForDeploymentTask(Guid siteId, SPUserToken userToken, String appPrincipalId)
at Microsoft.SharePoint.Lifecycle.SPAppPrincipalAccessTokenTask.<>c__DisplayClass1.<Deploy>b__0()
sudesh withanage

Hi sudesh,
According to your description, my understanding is that you encountered the error “An unexpected error was returned from the delegation service" when you try to add a SharePoint 2013 Provider hosted App.
As the error message says, the clientId 'd12de581-316c-4224-b58b-e91ac2042150/www.SERVERNAME.DOMAIN.com@0d85160c-5899-44ca-acc8-db1501b993b6' is not a valid service identity when your SharePoint try
to get access token via ACS. Is there any plans to develop a low trust mechanism for non-connected scenarios? i.e. low trust provider hosted apps with no external connection, like say for a Bank who lock down external access. Please follow the
steps as the blog to set development environment for SharePoint Low-Trust Apps:
http://blogs.msdn.com/b/besidethepoint/archive/2012/12/10/sharepoint-low-trust-apps-for-on-premises-deployments.aspx?PageIndex=1#comments
Best Regards,
Eric
Eric Tao
TechNet Community Support

SharePoint Provider Hosted App: mixed content issue

We have a provider hosted app that needs the SharePoint javascript and CSS files, so in our MVC view we added the following code:
<script src="@Request.QueryString["SPHostUrl"]/_layouts/15/SP.RequestExecutor.js" type="text/javascript"></script><script src="@Request.QueryString["SPHostUrl"]/_layouts/15/sp.js" type="text/javascript"></script>
The provider hosted app runs in HTTPS, our SharePoint environment in HTTP.
The app wants to get those SharePoint javascript and CSS files, but blocked because you try to access files from HTTPS to HTTP.
Example of the error in IE:
SEC7111: HTTPS security is compromised by http://ap/project/blabla/_layouts/15/sp.ui.controls.js
Example of an error in Chrome:
[blocked] The page at 'https://ap:2281/Appname/?SPHostUrl=…' was loaded over HTTPS, but ran insecure content from 'http://ap/project/blabla/_layouts/15/sp.ui.controls.js': this content should also be loaded over HTTPS.
How can we solve this issue without setting our SharePoint environment also to HTTPS?

Hi,
We can use the following method to solve this issue.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="StyleConsumer.aspx.cs" Inherits="StylesheetAppWeb.StyleConsumer" %>
<!DOCTYPE html>
<html>
<head>
<title>App using stylesheet</title>
</head>
<body>

<h1 class="ms-core-pageTitle">Stylesheet app</h1>

<h1 class="ms-accentText">For people</h1>

<h2 class="ms-accentText">who care about the style in their apps</h2>
<p></p>
<div>
<h2 class="ms-webpart-titleText">Get started with style in your app... </h2>
<a class="ms-commandLink" href="#">some command</a>
<br />
This sample shows you how to use some of the classes defined in the SharePoint website's style sheet.
</div>

<script type="text/javascript">
"use strict";
var appweburl;
(function () {
var ctag;
// Get the URI decoded app web URL.
appweburl =
decodeURIComponent(
getQueryStringParameter("SPAppWebUrl")
// Get the ctag from the SPClientTag token.
ctag =
decodeURIComponent(
getQueryStringParameter("SPClientTag")
// The resource files are in a URL in the form:
// web_url/_layouts/15/Resource.ashx
var scriptbase = appweburl + "/_layouts/15/";
// Dynamically create the invisible iframe.
var blankiframe;
var blankurl;
var body;
blankurl = appweburl + "/Pages/blank.html";
blankiframe = document.createElement("iframe");
blankiframe.setAttribute("src", blankurl);
blankiframe.setAttribute("style", "display: none");
body = document.getElementsByTagName("body");
body[0].appendChild(blankiframe);
// Dynamically create the link element.
var dclink;
var head;
dclink = document.createElement("link");
dclink.setAttribute("rel", "stylesheet");
dclink.setAttribute("href", scriptbase + "defaultcss.ashx?ctag=" + ctag);
head = document.getElementsByTagName("head");
head[0].appendChild(dclink);
// Function to retrieve a query string value.
// For production purposes you may want to use
// a library to handle the query string.
function getQueryStringParameter(paramToRetrieve) {
var params;
var strParams;
params = document.URL.split("?")[1].split("&");
strParams = "";
for (var i = 0; i < params.length; i = i + 1) {
var singleParam = params[i].split("=");
if (singleParam[0] == paramToRetrieve)
return singleParam[1];
</script>
</body>
</html>
More information is here:
http://msdn.microsoft.com/en-us/library/office/fp179898(v=office.15).aspx
Other materials:
http://sharepoint.stackexchange.com/questions/58731/how-do-i-inherit-the-css-theme-color-in-my-sharepoint-2013-app
http://social.msdn.microsoft.com/Forums/en-US/7d1028fe-e8c6-4d48-8e69-30eef3757522/auto-hosted-app-client-webpart-server-side-code-is-not-working?forum=appsforsharepoint
Best Regards
Dennis Guo
TechNet Community Support

How to get the current user name in Provider hosted app using appOnlyAccessToken

Hi,
Please help me, how to get the HostWeb UserName in Provider Hosted App
i have Provider hosted App, and Anonymous Authentication is enabled on AppWeb, using appOnlyAccessToken
Below code does not return current user who Log in in hostweb, it is returning
SharePoint App (app@sharepoint)
Web web = clientContext.Web;
clientContext.Load(web);
clientContext.ExecuteQuery();
clientContext.Load(web.CurrentUser);
clientContext.ExecuteQuery();
clientContext.Web.CurrentUser.LoginName;
Below code gives a blank name when Anonymous Authentication is enabled, if Anonymous Authentication is disabled
app prompts for credentials
HttpContext.Current.User.Identity.Name
Thanks
Ram

Hi,
Since you are using a provider Hosted app if you want to get the current logged in name than do not use AppOnlyAccessToken else use AccessToken which is App + user Context AccessToken.
then
Web web = clientContext.Web;
clientContext.Load(web);
clientContext.ExecuteQuery();
clientContext.Load(web.CurrentUser);
clientContext.ExecuteQuery();
clientContext.Web.CurrentUser.LoginName;will return proper user Name.
HttpContext.Current.User.Identity.Name will never return the user as this object is related to IIS server of your App Server not sharepoint.you should set this as Anonymous in case of provider hosted app.you can download the below sample which uses the AccessToken which has user name in it.https://code.msdn.microsoft.com/Working-provider-hosted-8fdf2d95
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SpContext.CreateUserClientContextForSPHost() returns null on Provider-hosted app

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