Deconstructing Modular Monoliths: Hexagonal Architecture with DDD Aggregates in Spring
In the ever-evolving landscape of software development, choosing the right architectural style is paramount for building applications that are robust, scalable, and easy to maintain. While microservices often grab headlines, the "modular monolith" has emerged as a practical and powerful alternative, especially for projects that require a strong initial foundation without the overhead of distributed systems. However, even a modular monolith can become unwieldy without proper structure. This article explores how combining Hexagonal Architecture with Domain-Driven Design (DDD) Aggregates, implemented within the Spring framework, provides a blueprint for deconstructing complexity and achieving true modularity.