In today’s increasingly distributed and event-driven systems, effective communication between different components is crucial. Whether you’re building microservices, real-time applications, or even IoT systems, one of the most powerful patterns you can leverage for communication is Pub/Sub (Publish/Subscribe). What is Pub/Sub? Pub/Sub (Publish/Subscribe) is a messaging pattern used in software architecture to facilitate communication between different components in a system. In this model, a publisher sends messages to a topic without knowing who will receive them. On the other hand, subscribers express interest in a specific topic and receive messages that are published to it. Pub/Sub is widely used in distributed systems, microservices architectures, and event-driven programming. Pub/Sub Visualization Where Did Pub/Sub Originate? The Pub/Sub pattern has its roots in publish-subscribe messaging systems used in messaging midd...