Get Your Hands Dirty on Clean Architecture by Tom Hombergs.png

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This course will teach you all about creating a web application in the Hexagonal Architecture style. Hexagonal Architecture promotes the separation of concerns by encapsulating logic in different layers of the application. This enables a higher level of isolation, testability, and control over your business specific code. 

You will learn how to design software modules and complete applications in a clean and maintainable manner, while also learning how to advocate for a certain technique given your application and constraints.

By the end of this course, you will have a greater understanding of how to implement software architecture, a key skill for any senior developer.

Hexagonal Software Architecture for Web Applications

There is yet another mapping strategy with another set of pros and cons:
the "One-Way" strategy, which is shown in the figure below.

## One-way mapping

There is yet another mapping strategy with another set of pros and cons:
the "One-Way" strategy, which is shown in the figure below.

# One-way mapping

Learn about the "one-way" mapping strategy and when and how to use it.

Before We Begin

What's Wrong with Layers?

Inverting Dependencies

Organizing Code

Implementing a Use Case

Implementing a Web Adapter

Implementing a Persistence Adapter

Testing Architecture Elements

Mapping Between Boundaries

Assembling the Application

Enforcing Architecture Boundaries

Taking Shortcuts Consciously

Assessment

Conclusion

Appendix

The "One-Way" Mapping Strategy

One-way mapping