I have 2 questions about a RESTful implementation of OpenSocial using Shindig 1.0 in PHP.
1) How do I indicate an empty set? For example, if a request is made for activities when a user has no activities, how should this be handled? I tried returning an empty array but this seems to cause an exception. 2) How do I indicate actual errors to Shindig? Right now, I'm modifying the HTTP header to indicate code 500, 400 or whatever. Is there a better way to do this? Thanks, Jason

