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Hexagonal Software Architecture for Web Applications

A thorough, code-driven deep dive into Hexagonal Architecture that empowers developers to create flexible, testable, and maintainable web applications.

access

Lifetime

level

Beginner

certificate

Certificate of completion

language

English

What will you learn in Hexagonal Software Architecture for Web Applications Course

  • Grasp the principles of Hexagonal (Ports & Adapters) architecture and its benefits over layered designs

  • Isolate domain logic behind well-defined ports, enabling independent testing and replacement of external dependencies

  • Implement inbound adapters (e.g., REST controllers, CLI) and outbound adapters (e.g., database, messaging) in web apps

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  • Apply Dependency Inversion to decouple application core from frameworks and infrastructure concerns

  • Integrate testing strategies: unit tests on domain, integration tests on adapters, and end-to-end validation

Program Overview

Module 1: Introduction to Hexagonal Architecture

⏳ 1 week

  • Topics: Evolution of software architecture, limitations of traditional layers, hexagon model overview

  • Hands-on: Sketch the hexagon diagram for a sample “To-Do” application

Module 2: Defining the Domain & Ports

⏳ 1 week

  • Topics: Core domain modeling, boundary interfaces (ports), use-case definitions

  • Hands-on: Write domain entities and port interfaces for task creation and querying

Module 3: Building Inbound Adapters

⏳ 1 week

  • Topics: HTTP controllers, CLI interfaces, WebSocket entry points as inbound adapters

  • Hands-on: Implement a REST adapter using a lightweight web framework to expose port functionality

Module 4: Developing Outbound Adapters

⏳ 1 week

  • Topics: Persistence adapters (SQL, NoSQL), messaging adapters (Kafka, RabbitMQ), external API clients

  • Hands-on: Create a database adapter for tasks using an ORM and configure it behind the repository port

Module 5: Wiring the Application & Configuration

⏳ 1 week

  • Topics: Dependency injection, wiring ports to adapters, environment-based configuration

  • Hands-on: Bootstrap the application by assembling the hexagon in a main entry-point

Module 6: Testing Strategies

⏳ 1 week

  • Topics: Unit testing the domain (mocking ports), adapter integration tests, end-to-end tests

  • Hands-on: Write tests for domain logic with a fake adapter and integration tests against an in-memory database

Module 7: Error Handling & Cross-Cutting Concerns

⏳ 1 week

  • Topics: Exception translation, logging, metrics, security adapter patterns

  • Hands-on: Implement a global error handler adapter and integrate logging via an outbound port

Module 8: Deployment & Evolution

⏳ 1 week

  • Topics: Containerization of adapters, versioning ports for backward compatibility, gradual adapter replacement

  • Hands-on: Containerize the web and database adapters with Docker, and demonstrate swapping the DB adapter

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Job Outlook

  • Knowledge of Hexagonal Architecture is highly valued for senior backend roles, architecture reviews, and greenfield projects

  • Roles include Software Architect, Senior Backend Engineer, and Technical Lead

  • Salaries typically range from $110,000 to $170,000+ depending on region and seniority

  • Mastery of clean, decoupled architectures boosts maintainability, testability, and team onboarding efficiency

9.5Expert Score
Highly Recommendedx
This course lays out a clear roadmap for applying Hexagonal Architecture in real web applications, blending theory with hands-on adapter implementation and testing.
Value
9
Price
9.2
Skills
9.4
Information
9.5
PROS
  • Balances conceptual clarity with code-centric adapter development
  • Emphasizes robust testing strategies at every layer of the hexagon
  • Demonstrates adapter swapping and evolution for real-world maintainability
CONS
  • Requires familiarity with DI frameworks and basic web stacks
  • Focuses on a single language/framework; patterns require adaptation elsewhere

Specification: Hexagonal Software Architecture for Web Applications

access

Lifetime

level

Beginner

certificate

Certificate of completion

language

English

Hexagonal Software Architecture for Web Applications
Hexagonal Software Architecture for Web Applications
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