var client = new HttpClient();


    var disco = await client.GetDiscoveryDocumentAsync("https://localhost:44316/");  //sggw
    if (disco.IsError)
    {
        Console.WriteLine(disco.Error);
        Console.WriteLine("aaa");
        return;
    }
    var tokenResponse2 = await client.RequestPasswordTokenAsync(new PasswordTokenRequest
    {
        Address = disco.TokenEndpoint,
        UserName = "aaaa",
        Password = "bbbb",
        ClientId = "cccc",
        ClientSecret = "ddddddd"
    });

    if (tokenResponse2.IsError)
    {
        Console.WriteLine("bbbb");
        Console.WriteLine(tokenResponse2.Error);
        Console.WriteLine(tokenResponse2.ErrorDescription);
        return;
    }
     Console.WriteLine(tokenResponse2.Json);
    Console.WriteLine("\n\n");
    Console.WriteLine("bearer " + tokenResponse2.Json.GetValue("access_token"));

    Thread thread = new Thread(() => Clipboard.SetText("Bearer " + tokenResponse2.Json.GetValue("access_token")));
    thread.SetApartmentState(ApartmentState.STA); //Set the thread to STA
    thread.Start();
    thread.Join();