An example showing AMF over sockets b/w AS and Ruby

socket_amf_sample_server.rb

# use "git clone git://github.com/warhammerkid/rocket-amf.git" to install
# rocket-amf into your directory

require 'rubygems'
require 'eventmachine'
require 'rocket-amf/lib/rocketamf'

module SocketAMFSampleServer
  def post_init
    puts "Connecting: someone connected to the echo server!"
  end
  
  def receive_data data
    puts RocketAMF.deserialize(data, 3).inspect
    
    send_data RocketAMF.serialize({ "sent" => "hello again!" }, 3)
  end
end

EventMachine::run do
  EventMachine::start_server "127.0.0.1", 8081, SocketAMFSampleServer
end

SocketAMFExample.as

package {
	import flash.display.Sprite;
	import flash.net.Socket;
	import flash.events.Event;
	import flash.events.IOErrorEvent;
	import flash.events.ProgressEvent;

	public class SocketAMFExample extends Sprite {
		private var socket:Socket;
		
		public function SocketAMFExample() {
			socket = new Socket();
			
			socket.addEventListener(Event.CONNECT, onConnect);
			socket.addEventListener(Event.CLOSE, onClose);
			socket.addEventListener(IOErrorEvent.IO_ERROR, onError);
			socket.addEventListener(ProgressEvent.SOCKET_DATA, onResponse);
			
			socket.connect("localhost", 8081);
		}
		private function onConnect(e:Event):void {
			trace("Connected!");
			
			socket.writeObject({ "sending": "hello world" });
			socket.flush();
		}
		private function onResponse(e:ProgressEvent):void {
			trace(socket.readObject()["sent"]);
		}
		private function onError(e:IOErrorEvent):void {}
		private function onClose(e:Event):void {}
	}
}