Related Resources Konfío Layered Application Architecture

Hexagonal Architecture emphasizes modularity, flexibility, and testability through dependency inversion, domain-driven design, ports and adapters, vertical slicing, and clear separation of concerns to create scalable and maintainable software systems.

Intro

Welcome to the world of Hexagonal Architecture, an Architectural pattern also known as Ports and Adapters! Let’s dive into this elegant approach to software design that emphasizes modularity, flexibility, and testability. 🚀

DomainDrivenHexagon.png

large_Slide_16_9_6_2d27b84e06.png

Before Start

Before we dive into Hexagonal Architecture, it’s recommended to review some fundamental design and architectural patterns. These patterns will provide a solid foundation for understanding the principles behind Hexagonal Architecture.

📚 Recommended Reading: Design and Architectural Patterns

This page covers essential concepts such as SOLID principles, Dependency Injection, Repository Pattern, Domain-Driven Design, and CQRS. Familiarizing yourself with these patterns will enhance your understanding of Hexagonal Architecture.

🔹 Core Concepts

0. 🔄 Dependency Flow

A fundamental principle of Hexagonal Architecture (and Clean Architecture in general) is the dependency rule: dependencies must flow from the outside in. This means:

image.png

• Inner layers (Domain) contain the core business logic and have no dependencies on outer layers
• Middle layers (Application) depend only on the Domain layer
• Outer layers (Infrastructure) implement interfaces defined by inner layers