Experimental!
Google Protocol RPC is an experimental, innovative, and rapidly changing new feature for Google App Engine. Unfortunately, being on the bleeding edge means that we may make backwards-incompatible changes to Google Protocol RPC. We will inform the community when this feature is no longer experimental.
The RequestState class requests state information about a request via the following properties:
remote_host- Remote host name where the request originated.
remote_address- IP address where the request originated.
server_host- Host of the server in which the service resides.
server_port- Post from which the service has received the request.