private static string baseUrl = "https://snoonotes.com/auth/connect/token";

static void Main(string[] args)
{

    string username = "CMVModBot";
    string password = "";
    string clientId = "cLGbNpLYg9gt_Q";

    LoginTokenResult accessToken = GetLoginToken(username, password, clientId);
    if (accessToken.AccessToken != null)
    {
        Console.WriteLine(accessToken);
    }
    else
    {
        Console.WriteLine("Error Occurred:{0}, {1}", accessToken.Error, accessToken.ErrorDescription);
    }


    Console.ReadLine();
}

private static LoginTokenResult GetLoginToken(string username, string password, string clientId)
{
    string content = $"grant_type=password&username={HttpUtility.UrlEncode(username)}&password={HttpUtility.UrlEncode(password)}&client_id={HttpUtility.UrlEncode(clientId)}";

    HttpClient client = new HttpClient();
    client.BaseAddress = new Uri(baseUrl);
    HttpResponseMessage response = client.PostAsync("Token", new StringContent(content, Encoding.UTF8, "application/x-www-form-urlencoded")).Result;

    string resultJSON = response.Content.ReadAsStringAsync().Result;
    LoginTokenResult result = JsonConvert.DeserializeObject<LoginTokenResult>(resultJSON);

    return result;
}