RabbitMQ simple send-receive in Ruby

consumer.rb

require 'bunny'

conn = Bunny.new
conn.start
ch = conn.create_channel
q = ch.queue('hello')

begin
  puts " [*] Waiting for messages in #{q.name}. To exit press CTRL+C"
  q.subscribe(:block => true) do |delivery_info, properties, body|
    puts " [x] Received #{body}"
    p delivery_info
  end
rescue Interrupt => _
  conn.close
  exit(0)
end

publisher.rb

require 'bunny'

conn = Bunny.new
conn.start
ch = conn.create_channel
q = ch.queue('hello')
ch.default_exchange.publish('Hello world', :routing_key => q.name)
puts " [x] Sent 'Hello world'"

Needs a local instance of RabbitMQ server running