public static HttpClient CreateHttpClient()
 {
     AppSettings settings = new AppSettings();
     AccessTokenProvider loginProvider = new AccessTokenProvider();
     OAuth2BearerTokenHandler oauth2Handler = new OAuth2BearerTokenHandler(settings, loginProvider);
     HttpClient httpClient = HttpClientFactory.Create(oauth2Handler);
     httpClient.BaseAddress = new Uri(BaseAddress);
     httpClient.Timeout = TimeSpan.FromDays(1);
     return httpClient;
 }