Prefer AMQP::Channel#default_exchange

Author: michaelklishin

ruby/send.rb

@@ -7,7 +7,7 @@
   channel = AMQP::Channel.new(connection)
   queue   = channel.queue("hello")
 
-  AMQP::Exchange.default.publish("Hello World!", :routing_key => queue.name)
+  channel.default_exchange.publish("Hello World!", :routing_key => queue.name)
   puts " [x] Sent 'Hello World!'"
 
   EM.add_timer(0.5) do