Preface

Companies are adopting event-driven architecture (EDA) as their web applications grow in size and complexity. Applications that communicate using events are easier to develop and scale. Adding or developing your application around real-time interactions becomes easier with EDA.

Direct point-to-point communication between microservices inevitably leads to the development of a distributed monolith, which is just a monolith with extra and unnecessary complexity. EDA is an architecture that helps organizations to decouple microservices and avoid developing another distributed monolith.

Choosing a new architecture for your next application or deciding to refactor an existing one can be fraught with known and unknown challenges. It is my intention and this book’s goal to provide you with enough examples and knowledge to give you a great head start should you decide to take the development of an EDA.

In this book, we will discuss and cover EDA concepts and related topics with the help of a small modular monolith demonstration application. We will use this application to take a journey through the concepts and topics to convert the synchronous mechanisms used by the application into asynchronous communication mechanisms.