Carrot

A synchronous amqp client. Based on Aman's amqp client:

http://github.com/tmm1/amqp/tree/master

Motivation

This client does not use eventmachine so no background thread necessary. As a result, it is much easier to use from script/console and Passenger. It also solves the problem of buffering messages and ack responses. For more details see this thread.

There is currently no way to prevent buffering using eventmachine. Support for prefetch is still unreliable.

Example

require 'secure_carrot'

q = Carrot.queue('name')
10.times do |num|
  q.publish(num.to_s)
end

puts "Queued #{q.message_count} messages"
puts

while msg = q.pop(:ack => true)
  puts "Popping: #{msg}"
  q.ack
end
Carrot.stop

Encrypting and Decrypting messages

Symmetric encryption is used here which means the same password is used for encrypting and decrypting the message.

puts "Encrypt and send a message"
q.send_message('Hello Carrot', :password => 'secure')
#=> "qrbSyJHx6JhBQtXKsWvm/A==\n"

puts "Receiving and decrypting message. If you don't specify the password you will read an encrypted message."
q.receive_message(:password => 'secure')
#=> "Hello Carrot"

LICENSE

Copyright (c) 2009 Amos Elliston, Geni.com; Published under The MIT License, see License