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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

The term "Hexagonal Architecture" stems from the work of Alistair Cockburn and has been around for quite some time[$^4$](https://www.educative.io/courses/hexagonal-architecture-web-apps/appendix-i#hexagonal-source). It applies the same principles that Robert C. Martin later described in more general terms in his book on Clean Architecture.

## Hexagonal Architecture diagram

The term "Hexagonal Architecture" stems from the work of Alistair Cockburn and has been around for quite some time[$^4$](https://www.educative.io/courses/hexagonal-architecture-web-apps/appendix-i#hexagonal-source). It applies the same principles that Robert C. Martin later described in more general terms in his book on Clean Architecture.

# Hexagonal Architecture diagram

Learn about hexagonal software architecture.

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

Hexagonal Architecture

Hexagonal Architecture diagram