When the code following the await can be executed on any thread, it's
recommended to use ConfigureAwait(false) to avoid unnecessary context
switching and potential deadlocks.
This class extends HttpClient and uses an OAuthHttpMessageHandler under the covers to automatically authenticate requests.
Additionally, it automatically respects the global HttpContextSettings for overall timeout, read/write timeout, and SSL certificate validation.
(BufferRequests isn't currently handled, as HttpClient doesn't seem to easily expose that flag, and as of .NET 4.5, seems to not buffer by default.)
Kenneth Hsu