Emit events to client #1

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1. codeholic commented on Aug 30, 2012

   

   codeholic

   on Aug 30, 2012

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   I experience the same problem. I tried the following code. The block that invokes send_message is executed, but the message is not being sent. What am I probably doing wrong?

   require 'eventmachine-tail'
   require 'json'
   
   class TailAction < Cramp::Action
     include SocketIo::Websocket
   
     on_start :subscribe
     on_finish :unsubscribe
   
     @@channel = EventMachine::Channel.new
     @@filetail = EventMachine::file_tail('/tmp/ponytail') do |filetail, line|
       @@channel.push line
     end
   
     def subscribe
       @sid = @@channel.subscribe do |m|
         send_message(data: { message: m }.to_json)
       end
     end
   
     def unsubscribe
       @@channel.unsubscribe(@sid) if @sid
     end
   end

   <html>
   <head>
     <title>Ponytail</title>
     <script type="text/javascript" src="javascripts/socket.io.min.js"></script>
     <script>
       var socket = io.connect('/socket.io');
       socket.on('message', function(message) {
         alert(message);
       });
     </script>
   </head>
   <body>
   </body>
   </html>
2. erithmetic commented on Aug 30, 2012

   

   erithmetic

   on Aug 30, 2012

   Owner

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   I've abandoned this project for two reasons: 1.) I'm not longer working on the problem this tool attempted to solve, and 2.) Cramp has been superseded by Celluloid/Lattice https://github.com/celluloid/lattice

   If I find myself needing a Ruby socket-io implementation, I'd focus on a lattice-based service.

   I'll accept pull requests, but I have no plans of maintaining this.
3. codeholic commented on Aug 30, 2012

   

   codeholic

   on Aug 30, 2012

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   Thank you for your feedback!
5. codeholic commented on Oct 22, 2012

   

   codeholic

   on Oct 22, 2012

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   I decided not to use WebSockets, after all. SSE (with long polling fallback for IE) seemed to me the way to go. Cramp supports both out of box.