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RabbitMQ Messaging Polyglot with Java, ColdFusion, CommandBox, Groovy and more
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readme.md

RabbitMQ 🐰 Messaging Polyglot

by Luis Majano lmajano@ortussolutions.com

This project was originally forked from Rob Harrop https://github.com/robharrop/presentations

Rabbit MQ Setup

In order to execute the examples you will need to have RabbitMQ Server installed: https://www.rabbitmq.com/ and for the STOMP example you will need to install the web-stomp plugin for RabbitMQ: https://www.rabbitmq.com/web-stomp.html

Docker

However, we have also provide a docker-compose.yml file for doing all this for you 🚀. You run docker-compose up in the root of this project and it will run a RabbitMQ server for you with all the necessary plugins installed.

The default credentials are rabbitmq for both username and password. You can change them in the docker compose file.

Traditional Setup

Invoke the sbin/rabbitmq-server shell script.

You can also start the server in detached mode with rabbitmq-server -detached, in which case the server process runs in the background.

You can customise the RabbitMQ environment by setting environment variables in $RABBITMQ_HOME/etc/rabbitmq/rabbitmq-env.conf. Server components may be configured, too, in the RabbitMQ configuration file located at $RABBITMQ_HOME/etc/rabbitmq/rabbitmq.config. Neither of these files exist after installation.

The broker creates a user rabbitmq with password rabbitmq. Unconfigured clients will in general use these credentials. By default, these credentials can only be used when connecting to the broker as localhost so you will need to take action before connecting from any other machine.

RabbitMQ Management Plugin

Install the managment plugin first rabbitmq-plugins enable rabbitmq_management

More information at: https://www.rabbitmq.com/management.html

RabbitMQ Admin URL

http://localhost:15672/ guest:guest

RabbitMQ STOMP Plugin

Install the plugin: rabbitmq-plugins enable rabbitmq_web_stomp

More information at: http://www.rabbitmq.com/web-stomp.html


Source Code

The source code is divided into consumers and producers. You can see many examples here for RabbitMQ implementations: https://www.rabbitmq.com/getstarted.html

Producers

  • Java - Native Java
  • CFML - ColdFusion (A web app)
  • CommandBox - CFML CLI based worker

Consumers

  • ColdFusion : Running a consumer via CFML asynchronously
  • CommandBox : CFML CLI based workers
  • Groovy : Running via Groovy
  • Java : Running via native Java consumers
  • Node : Running using amqplib and node
  • Stomp : Running via stompjs, websockets and RabbbitMQ

We will be using the Default Exchange which is the '' empty exchange, which is a direct exchange or you can use the amq.direct exchange as well.

The routing key used is stock.prices and since it is a direct exchange the queue name is also stock.prices

Stomp Plugin For RabbitMQ URL

http://127.0.0.1:15674/stomp Valid destination types are: /temp-queue, /exchange, /topic, /queue, /amq/queue, /reply-queue/.

Use /queue for durable queues Use /amq/queque for default exchange and non-durable queues

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