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Hands-On Dependency Injection in Go

You're reading from   Hands-On Dependency Injection in Go Develop clean Go code that is easier to read, maintain, and test

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Product type Paperback
Published in Nov 2018
Publisher Packt
ISBN-13 9781789132762
Length 346 pages
Edition 1st Edition
Languages
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Author (1):
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Corey Scott Corey Scott
Author Profile Icon Corey Scott
Corey Scott
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Table of Contents (15) Chapters Close

Preface 1. Never Stop Aiming for Better FREE CHAPTER 2. SOLID Design Principles for Go 3. Coding for User Experience 4. Introduction to the ACME Registration Service 5. Dependency Injection with Monkey Patching 6. Dependency Injection with Constructor Injection 7. Dependency Injection with Method Injection 8. Dependency Injection by Config 9. Just-in-Time Dependency Injection 10. Off-the-Shelf Injection 11. Curb Your Enthusiasm 12. Reviewing Our Progress 13. Assessment 14. Other Books You May Enjoy

Chapter 2, SOLID Design Principles for Go

1. How does the single responsibility principle improve Go code?

By applying the single responsibility principle, the complexity of our code is reduced as it is decomposed code into smaller, more concise pieces.

With the smaller, more concise pieces, we gain increases in the potential usability of that same code. These smaller pieces are easier to compose into larger systems, due to their lighter requirements and more generic nature.

The single responsibility principle also makes tests simpler to write and maintain because when a piece of code has only one purpose, there is only much less scope (and therefore complexity) required to test.

 

2. How does the open/closed principle improve Go code?

The open/closed principle helps reduce the risk of additions and extensions by encouraging us not to change existing code, particularly exported...

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