How to Use ActiveMQ in Rails App

Active MQ is one of the most popular messaging server . In this post we will list out the steps on how to use it in rails application. Installation ActiveMQ procedure for Ubuntu 14.04Download ActiveMQ 5.4.2 from http://activemq.apache.org/download.htmlor you can install it from console by writing following command .

sudo apt-get install activemq

Now start the server by writing following command :

$ ./activemq start

Now , for connecting activeMQ server , we can use Stomp Gem . So for sending message , open IRB prompt and write following command :

$ irb req1.9.3-p362 :001 > require "stomp"=> true 
1.9.3-p362 :002 > client = Stomp::Client.new("aDMIN", "admin", "localhost", 61613)

You might get error like this :

Errno::ECONNREFUSED: Connection refused - connect(2)
 from /home/usermac44/.rvm/gems/ruby-1.9.3-p362/gems/stomp-1.3.3/lib/connection/netio.rb:203:in `initialize'

We have to configure stomp protocol on our activemq server like this : Add the following line to the configuration file:

  <transportConnectors>
    <transportConnector name="stomp" uri="stomp://0.0.0.0:61613?maximumConnections=1000&amp;wireformat.maxFrameSize=104857600"/>
  </transportConnectors>

Now restart activemq. and send the message again . It will work now . You can see the active mq console at http://localhost:8161/admin . Thanks to santosh for writing this post .