I'm building a URL that should return only a JSON string. Basically I need the browser to display only the JSON String, without any HTML overhead.

for instance someone would call the following action from a post request

http://myserver/Action.seam?param1=value

and the returning responses would be only a JSON object such as

myObject { param1: "test" }

What is coming to my mind is a Servlet that would handle those calls, any other suggestions?