How to implement Pub/Sub pattern in Ruby on Rails? - DEV Community

In this article we'll provide a comprehensive guide to understanding and implementing the Pub/Sub pattern. We will explore the evolution of this pattern from a primitive implementation to three product-ready solutions: ActiveSupport::Notifications, Wisper, and Dry-Events. We will begin by discussing the core concept of the Pub/Sub pattern. Then:We will provide a step-by-step guide on how to implement the Pub/Sub pattern using the basic Ruby language constructs.We will introduce the ActiveSupport::Notifications library.We will delve into the Wisper gem.Finally, we will examine the Dry-Events gem.