The premise of this book is that component-based applications make it easier to navigate code bases, implement new features, and keep tests fast. Writing for programmers and software team leads who are comfortable with Ruby and Rails, author Stephan Hagemann introduces a practical, start-to-finish methodology for modernizing and restructuring existing Rails applications. One step at a time, he demonstrates how to revamp Rails applications to exhibit visible, provably independent, and explicitly connected parts – thereby simplifying them and making them far easier for teams to manage, change, and test. Throughout, he introduces design concepts and techniques you can use to improve applications of many kinds, even if they weren’t built with Rails or Ruby.

Author: Stephan Hagemann
Publisher: Addison-Wesley
Date: July 2018
Pages: 300
ISBN: 978-0134774589
Print: 0134774582
Kindle: 0134774582
Audience: Rust and Rails developers
Level: Intermediate
Category: Other Languages

• Learn how components clarify intent, improve collaboration, and simplify innovation and maintenance
• Create a full Rails application within a component, from first steps to migrations and dependency management
• Test component-based applications, manage assets and dependencies, and deploy your application to production
• Identify the seams in an existing Rails application, and refactor it to extract components
• Master a scripted, repeatable approach for refactoring Rails applications of any size
• Use component-based Rails with two popular structural patterns: hexagonal and DCI architecture
• Use your new component skills with other frameworks and languages
• Overcome the unique challenges that arise as you componentize Rails applications

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