Here is an excellent video training session on how to code OData calls from a Windows Phone 8 device. This gives you the information you need to be able to talk to with Netweaver gateway using OData 🙂 or communicate with SUP 2.2 (when you can get hold of a copy 😯 ) new Rest API !
Jump to 25 minutes into the video to find the consuming Odata RESTful web services part.
The rest of this video covers various networking API’s such as WebClient, HttpWebRequest, Listener Sockets, Web Services and OData V3 including Data compression methods.
❗ Note this is module 11 of 20 video’s ! That’s around 30 hours of training video’s on Windows phone 8