A good software architecture should keep the cost of development low over the complete lifetime of an application.
Ever wondered about how to actually implement a “Clean Architecture” or a “Hexagonal Architecture”? There’s a lot of noise around these keywords, but you can find very little hands-on material on this topic.
This book fills a void by providing a hands-on approach to the Hexagonal architecture style from the concepts behind it down to actual code.
Get the ebook
- more than 150 reviews on Amazon and Goodreads.
- ebook available as 101-page .pdf, .epub, and .mobi on Leanpub and Gumroad
- support me directly by paying more than the minimum price
- get updated versions immediately and for free
- save $10 if you subscribe to the Simplify! newsletter
Get the Print Book
- rated 4.4 stars on Amazon.
- ebook and paperback (156 pages)
- ebook available as .pdf, .epub, and .mobi at Packt
- ebook available for Kindle at Amazon
- available as NOOK book at Barnes & Noble
All About Hexagonal Architecture
- Learn the concepts behind “Clean Architecture” and “Hexagonal Architecture”.
- Explore a hands-on approach of implementing a Hexagonal architecture with example code on GitHub.
- Develop your domain code independent of database or web concerns.
Get a Grip on Your Layers
- Learn about potential problems of the common layered architecture style.
- Free your domain layer of oppressive dependencies using dependency inversion.
- Structure your code in an architecturally expressive way.
- Use different methods to enforce architectural boundaries.
- Learn the consequences of shortcuts and when to accept them.
- … and more.
What Readers Say
Tom Hombergs has done a terrific job in explaining clean architecture - from concepts to code. Really wish more technical books would be as clear as that one!
Gernot Starke - Fellow at INNOQ, Founder of arc42, Author of Software Architecture Books, Coach, and Consultant
Love your book. One of the most practical books on hexagonal architecture I have seen/read so far.
Marten Deinum - Spring Framework Contributor and Author of “Spring 5 Recipes” and “Spring Boot 2 Recipes”
A book taken right out of the machine room of software development. Tom talks straight from his experience and guides you through the day-to-day trade-offs necessary to deliver clean architecture.
Sebastian Kempken - Software Architect at Adcubum
Thank you for the great book, it helped me gain significant insight into how one would go about implementing hexagonal and DDD in a modern Spring project.
Spyros Vallianos - Java Developer at Konnekt-able
After reading it I had one of these ‘aha’ moments when things finally click in your brain.
Manos Tzagkarakis - Java Developer at Datawise
Table of Contents
- 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
- Deciding on an Architecture Style
Drop me an email.