Microsoft.WindowsAzure.MediaServices.Client.OAuth.OAuthDataServiceAdapter.AddAccessTokenToRequest C# (CSharp) Method

        public void AddAccessTokenToRequest(WebRequest request)
        {
            if (request == null)
            {
                throw new ArgumentNullException("request");
            }

            if (request.Headers[AuthorizationHeader] == null)
            {
                request.Headers.Add(AuthorizationHeader, _tokenProvider.GetAuthorizationHeader());
            }
        }

        private static Uri GetAccountApiEndpoint(OAuthDataServiceAdapter dataServiceAdapter, ServiceVersionAdapter versionAdapter, Uri apiServer)
        {
            RetryPolicy retryPolicy = new RetryPolicy(
                new WebRequestTransientErrorDetectionStrategy(),
                RetryStrategyFactory.DefaultStrategy());

            Uri apiEndpoint = null;
            retryPolicy.ExecuteAction(
                    () =>
                        {
                            HttpWebRequest request = (HttpWebRequest) WebRequest.Create(apiServer);
                            request.AllowAutoRedirect = false;
                            dataServiceAdapter.AddAccessTokenToRequest(request);
                            versionAdapter.AddVersionToRequest(request);

                            using (WebResponse response = request.GetResponse())
                            {
                                apiEndpoint = GetAccountApiEndpointFromResponse(response);
                            }
                        }
                );

            return apiEndpoint;
        }