There is a surprising lack of Grails –> Flex integration available. There is a flex plugin available on, however it is experimental and was really only written as a proof-of-concept. The plugin allows you to annotate your service classes in Grails, so that the services become “remotable” during run time.

I was looking for a way to communicate between Grails and Flex using the Adobe native AMF3 protocol. I found way to do it using the GraniteDS Flex Plugin. Brilliant that somebody thought of this!