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Component-Based Rails Applications

Large Domains Under Control

Updated book available from Pearson

Components put you in control of the destiny of your Rails application. Decompose your existing application to make it more maintainable and to set you up for a bright development future. Assemble your new application from smaller pieces that you can develop concurrently, combine reliably, and test independently.

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About

About

About the Book

As Rails applications grow and mature the help we get from the framework shrinks - to some, it even feels like the framework gets in the way. It doesn't need to be that way! With component-based applications we have a great way to control the complexity of our domain. In areas where Rails alone does not lend much support, we look to proven patterns to create a meaningful support structure for all of our applications.

With this book you will learn

  • How to create components with gems and engines.
  • How to spot and fix common technical issues
  • What refactorings to use to tease out new components 
  • How to extract your first component from any existing project 
  • How to apply component-based design together with the hexagonal and DCI architectural patterns

You will hear from others that have taken the journey and how they used components to improve their projects.

As you will learn through this book, components are also a great stepping stones towards micro-service architectures.

The intent of this book goes well beyond Rails: We want you to become a better software engineer. Components are a proven method of software development and all popular programming languages allow the creating of components in some way. The learnings from this book will improve your ability to create maintainable applications in any language!

Author

About the Authors

Stephan Hagemann

Stephan leads the product infrastructure engineering team at Gusto. Gusto has quite a bit of Ruby on Rails in the software behind their offerings and provides the perfect ground for the analysis of complex applications due to "Payroll" being both a deep and very wide domain. And Gusto is a lot more than payroll.

Stephan is the author of Component-based Rails Applications in which he lays out the previous iteration of Ruby and Rails modularization based on gems and engines. He is currently working on a new book called Gradual Modularization for Ruby and Rails, which improves on his previous ideas by reducing the cost of the needed work and increasing the opportunities for benefiting from it.

Find out more about Stephan at stephanhagemann.com.

Ryan Platte

Ryan is an independent software developer. His experience includes work for top national brands, startups, and non-profits. He lives in Rochester, NY with his family.

Benjamin Smith

Benjamin Smith is the CTO at hobbyDB. He has a strong passion for TDD, pairing, Agile and using technologies that get out of the programmer's way. When not writing code, he follows his other passions into the outdoors to rock climb, back country snowboard, and river surf.

Enrico Teotti

Enrico has been working in the IT industry since 2001, first developing in C# .NET, after that attracted to open source and Linux terminal servers then from 2005 Ruby and Rails. Passionate about agile methodologies, TDD and building maintainable software that delivers business value. Blogging at http://teotti.com

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