In this article, we will demonstrate how to implement Mule applications with pub-sub design patterns. Here we will be using RabbitMQ as a message queuing broker.

Pub/Sub architecture: The publish-subscribe pattern, also known as Pub/Sub, is an architectural design pattern that provides a framework for exchanging messages between publishers and subscribers. This pattern involves the publisher and the subscriber relying on a message broker that relays messages from the publisher to the subscribers.
RabbitMQ: It is an open-source and platform-independent message-broker software that originally implemented the Advanced Message Queuing Protocol. It has since been extended with a plug-in architecture to support Streaming Text Oriented Messaging Protocol and MQ Telemetry Transport. In MuleSoft, we will use an AMQP connector for the integration

Prerequisites 

We will be using the tools below to achieve this integration scenario. This is limited to Windows 64-bit version operating system. Erlang is dependency software to be installed before RabbitMQ.

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