Discover Hexagonal Architecture to create web applications with isolated, testable layers. Gain insights into designing clean, maintainable modules and advocating for suitable techniques for your application.

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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

# How does this help me build maintainable software?
When building a web adapter for an application, we should keep in mind that we're building an adapter that translates #key# HTTP: Hypertext Transfer Protocol #key# method calls to use cases of our application and translates the results back to #key# HTTP: Hypertext Transfer Protocol #key#, and does not do any domain logic.

The application layer, on the other hand, should not do #key# HTTP: Hypertext Transfer Protocol #key#, so we should make sure to not leak #key# HTTP: Hypertext Transfer Protocol #key# details. This makes the web adapter replaceable by another adapter should the need arise. 


Let's recap the importance of a web adapter and how it can help in writing maintainable software. 

Conclusion: Implementing a Web Adapter

Let's recap the importance of a web adapter and how it can help in writing maintainable software.

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

Conclusion: Implementing a Web Adapter

How does this help me build maintainable software?