Hands-On Dependency Injection in Go

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  • Understand the benefits of DI
  • Explore SOLID design principles and how they relate to Go
  • Analyze various dependency injection patterns available in Go
  • Leverage DI to produce high-quality, loosely coupled Go code
  • Refactor existing Go code to adopt DI
  • Discover tools to improve your code’s testability and test coverage
  • Generate and interpret Go dependency graphs

Hands-On Dependency Injection in Go takes you on a journey, teaching you about refactoring existing code to adopt dependency injection (DI) using various methods available in Go.

Of the six methods introduced in this book, some are conventional, such as constructor or method injection, and some unconventional, such as just-in-time or config injection. Each method is explained in detail, focusing on their strengths and weaknesses, and is followed with a step-by-step example of how to apply it. With plenty of examples, you will learn how to leverage DI to transform code into something simple and flexible. You will also discover how to generate and leverage the dependency graph to spot and eliminate issues. Throughout the book, you will learn to leverage DI in combination with test stubs and mocks to test otherwise tricky or impossible scenarios.

Hands-On Dependency Injection in Go takes a pragmatic approach and focuses heavily on the code, user experience, and how to achieve long-term benefits through incremental changes.

By the end of this book, you will have produced clean code that’s easy to test.

  • Learn to evaluate Code UX and make it better
  • Explore SOLID principles and understand how they relate to dependency injection
  • Use Google's wire framework to simplify dependence management
Page Count 346
Course Length 10 hours 22 minutes
ISBN 9781789132762
Date Of Publication 27 Nov 2018


Corey Scott

Corey Scott is a senior software engineer and architect living in Melbourne, Australia. He has been programming professionally since 2000 with the last 5 years spent building large scale distributed services in Go. An occasional technical speaker and blogger on a variety of software related topics, he is most passionate about the ideals of Software Craftsmanship and always enjoys a good debate about software engineering, continuous delivery, testing or clean coding.