Some additional information and examples:
A Quick Introduction to WebRPC
https://gkbrown.wordpress.com/2015/08/25/introducing-webrpc/
A Practical Example Using MarkupKit and WebRPC
https://gkbrown.wordpress.com/2015/09/08/a-practical-example...
A Practical Example Using WebRPC and Android
https://gkbrown.wordpress.com/2015/10/06/a-practical-example...