Should I build a REST backend for GWT application

Question

I am planning a new application and have been experimenting with GWT as a possible frontend. The design question I am facing is this.

Should I use Option A: GWT-RPC

Answer 1

I would say that this depends on the scope of your total application. If your backend should be used by other clients, needs to be extendable etc. then create a separate module using REST. If the backend is to be used by only this client, then go for the GWT-RPC solution.