using IdentityModel.Client;

using System;

using System.Net.Http;

using System.Threading.Tasks;

public class Program

{

    static async Task Main()

    {

        var _authServer = "https://apiauth-test.onbe.com";

​

        var Client = new HttpClient();

        var discoveryDoc = await Client.GetDiscoveryDocumentAsync(_authServer);

​

        var tokenResponse = await Client.RequestClientCredentialsTokenAsync(new ClientCredentialsTokenRequest

            {

                Address = discoveryDoc.TokenEndpoint,

                ClientId = "test",

                ClientSecret = "test",

                Scope = "test"

            });

        Console.WriteLine(tokenResponse.Error);

    }

}