Invalid domain name Azure Active directory issue and Migration to Microsoft Graph C# application

Question

I am trying to run below code to get the user details as response from Azure Active Directory :

using Microsoft.IdentityModel.Clients.ActiveDirectory;
using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;

namespace AADConsole2
{
    class Program
    {

        private const string aadInstance = "https://login.microsoftonline.com/{0}";
        private const string resource= "https://graph.windows.net";
        private const string GraphServiceObjectId = "XXX";
        private const string TenantId = "XXXXX";
        private const string tenant = "company.onmicrosoft.com";
        private const string ClientId = "XXXX";
        private static string appKey= "XXXXXXXXXXXXXXXX";
        static string authority = String.Format(System.Globalization.CultureInfo.InvariantCulture, aadInstance, tenant);

        private static HttpClient httpclient = new HttpClient();
        private static AuthenticationContext context = null;
        private static ClientCredential credential = null;

        static void Main(string[] args)
        {

            context = new AuthenticationContext(authority);
            credential = new ClientCredential(ClientId, appKey);
            Task<string> token = GetToken();
            token.Wait();
            Console.WriteLine(token.Result);
            Task<string> users = GetUsers(token.Result);
            users.Wait();
            Console.WriteLine(users.Result);
            Console.ReadLine();
        }

        private static async Task<string> GetUsers(string result) {
            //throw new NotImplementedException();
            string users = null;
            string queryString = "test";

var uri = "https://graph.windows.net/{your_tenant_name}.onmicrosoft.com/users?api-version=1.6";

            httpclient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", result);
            var getResult = await httpclient.GetAsync(uri);

            if(getResult.Content != null)
            {
                users = await getResult.Content.ReadAsStringAsync();

            }
            return users;

        }


        private static async Task<string> GetToken()
        {
            AuthenticationResult result = null;
            string token = null;
            result = await context.AcquireTokenAsync(resource, credential);
            token = result.AccessToken;
            return token;



        }
    }
}

I am getting below error:

uMCJ9.FdttazjoKYZWP_SmC5B7Nd3kOF-jRs62WLKYovDA8qMvybLTw8yIUoihp7I00ctJGJHDoEbhbIi0XHp9Ujdq0bNPlG-L5SoE9IFSoxX3ZQOZwSf90b_nDapbHJ8KCHZUnCBOwVnYiTXtpIQfrDVqqENarrIGa_uUbiriomYiB8gVkKWe6PB-I4lsYPEmMNnnpdvIf1eV_CsTmvUA54Ch1Zdip9mxrzRqrUqsx6vUTo0riCmiCxRg7mH2DuMaEPTZuQAMwhrQM_EwNsgx1yX1VsCKkL1Gu7CV_dqW5xxYlE7NEQmorT8W6aySbiBzsUWisJNnaR8RqZzeAUlSVMKBiw
{"odata.error":{"code":"Request_BadRequest","message":{"lang":"en","value":"Invalid domain name in the request url."},"requestId":"01ab745b-8a3f-48cc-9542-0c6abcae8950","date":"2020-02-17T22:41:28"}}
r

Also ,help me in getting tenant name ( it's a name or alphanumeric id ?) ,currently i am just using below tenant name. private const string tenant = "company.onmicrosoft.com";

I only want to use Microsoft Graph API in this code. Thanks.

Tony Ju Tony Ju · Accepted Answer · 2020-02-18T01:52:19

i also want to know the whether this code is using Microsoft Graph or Azure AD.

This code is using Azure AD Graph API. It works fine if the request uri is correct.You should use your tenant name, not company.onmicrosoft.com, and you must specify the api-version. So the request uri should be

var uri = "https://graph.windows.net/{your_tenant_name}.onmicrosoft.com/users?api-version=1.6";

If the tenant name is wrong, you will encounter Invalid domain name error.

I am not sure whether to use https://graph.microsoft.com or https://graph.windows.net.

You can use either one. But the official document strongly recommend that you use Microsoft Graph instead of Azure AD Graph API to access Azure Active Directory (Azure AD) resources.

If you want to use Microsoft Graph API, just change the value of resource and request api url. The resource will be https://graph.microsoft.com. The request api url will be var uri = "https://graph.microsoft.com/v1.0/users";.

Note: Remember to grant your application the correct permissions in Azure portal and grant admin consent.

Invalid domain name Azure Active directory issue and Migration to Microsoft Graph C# application

1 Answers