public string Login()
        {
            var request = base.Client.CreateRequest(HttpMethod.Post, "identityserver/connect/token");

            request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
            request.Headers.Authorization = new AuthenticationHeaderValue("Basic", UserLogin.GetClientCredentials());
            request.Headers.Host          = base.Client.UrlApi.Replace("http://", "");
            request.Content = new FormUrlEncodedContent(new Dictionary <string, string>
            {
                { "grant_type", "password" },
                { "username", base.Client.User.Login },
                { "password", base.Client.User.Password },
                { "scope", "Agents Monitoring" }
            });

            using (var httpClient = new HttpClient())
                using (request)
                    using (var response = httpClient.SendAsync(request).ConfigureAwait(false).GetAwaiter().GetResult())
                    {
                        if (!response.IsSuccessStatusCode)
                        {
                            throw new Exception($"Erro na comunicação com a API, não foi possivel obter o token. status de erro: {response.StatusCode}");
                        }

                        dynamic content = JsonConvert.DeserializeObject(response.Content.ReadAsStringAsync().ConfigureAwait(false).GetAwaiter().GetResult());
                        return(content.access_token.ToString());
                    }
        }