/// <summary>
/// Internally sets the current service configuration without validation. This is used
/// with the default constructor so that the user can specify a configuration using the
/// ServiceConfig property without forcing a validation (because the default config is
/// invalid without a credential).
/// </summary>
private void SetServiceConfigInternal(EmsApiServiceConfiguration config)
{
m_config = config;
m_clientHandler.ServiceConfig = config;
// Reset the default headers, they may have changed with the config.
m_httpClient.DefaultRequestHeaders.Clear();
m_config.AddDefaultRequestHeaders(m_httpClient.DefaultRequestHeaders);
// See if the endpoint has changed.
if (m_config.Endpoint != m_endpoint)
{
m_endpoint = m_config.Endpoint;
// Reset the BaseAddress, and create a new refit service stub.
// It's bound to the HttpClient's base address when it's constructed.
m_httpClient.BaseAddress = new Uri(m_config.Endpoint);
RefitApi = RestService.For <IEmsApi>(m_httpClient);
}
}
private bool GetNewBearerToken(out string error, CancellationToken?cancel = null)
{
error = null;
var request = new HttpRequestMessage(HttpMethod.Post, string.Format("{0}/token", m_serviceConfig.Endpoint));
m_serviceConfig.AddDefaultRequestHeaders(request.Headers);
request.Content = new FormUrlEncodedContent(new Dictionary <string, string>
{
{ "grant_type", SecurityConstants.GrantTypePassword },
{ "username", m_serviceConfig.UserName },
{ "password", m_serviceConfig.Password }
});
CancellationToken cancelToken = cancel ?? new CancellationToken();
HttpResponseMessage response = base.SendAsync(request, cancelToken).Result;
// Regardless of if we succeed or fail the call, the returned structure will be a chunk of JSON.
string rawResult = response.Content.ReadAsStringAsync().Result;
var result = JObject.Parse(rawResult);
if (!response.IsSuccessStatusCode)
{
string description = result.GetValue("error_description").ToString();
error = string.Format("Unable to retrieve EMS API bearer token: {0}", description);
return(false);
}
string token = result.GetValue("access_token").ToString();
int expiresIn = result.GetValue("expires_in").ToObject <int>();
// Stash the new token and keep track of when we expire.
m_authToken = token;
m_tokenExpiration = DateTime.UtcNow.AddSeconds(expiresIn);
return(true);
}