橋本商会

var io = new RocketIO({channel: "チャンネル名"}).connect();

io.on("hoge", function(data){

  alert(data);

});

Sinatra::RocketIO.push :hoge, "ホゲ", :channel => "チャンネル名"

get '/chat/:channel' do

  @channel = params[:channel]

  haml :chat

end

:javascript

  var channel = "#{@channel}";

var io = new RocketIO({channel: channel}).connect();