[Resteasy-users] How-to questions from a noob

I would like to make a web API that can return JSON data but I'm debating whether to make it RESTful or whether to try something more along the lines of an orchestration API. Can resteasy make an API that responds with multiple data types in one response? Does resteasy have the ability to do

[Resteasy-users] Endpoints for data of different types

Does resteasy have a mechanism for sending data of different data types in one response to avoid additional requests to other endpoints? Example: Supposwe I want to request user/23/withGroupMemberships so it would load data of type user and of type membership and of type group. Does a strict