[undertow-dev] Async proxy to Async API

Hi everybody, this is the big picture: a. frontend application with Undertow b. backend application with Undertow and Resteasy for REST API A serves JS,HTML,CSS and exposes B's REST API with a proxy servlet ( https://github.com/mitre/HTTP-Proxy-Servlet). Since one method of my backend API does some image processing, I'm wondering how to implement this method in an asynchronous way. On B side I'm reading Resteasy documentation http://docs.jboss.org/resteasy/docs/3.0.9.Final/userguide/html_single/#As... On A side is there something could help me from undertow to proxy in async way the requests to this method of B? -- Davide