Go by Example: Programmer's Guide to Idiomatic and Testable Code

By Inanc Gumus

Go beyond Go syntax into the language's unique perspective on program design.

Through engaging hands-on examples, Go by Example will teach you to think differently about programming in Go. You'll get to grips with the "Go mindset", writing code that's simple, straightforward, and easy to understand for your fellow Go developers. You'll discover how Go's tooling helps you write code that's robust and testable, and see just how productive you can be with Go's rich set of built-in packages.

In Go by Example you will learn how to: Understand what makes Go different and adopt its philosophy for simple, pragmatic, and straightforward codeWrite idiomatic code that's robust, efficient, maintainable, and inherently testable by designIdentify common Go mistakes and apply proven patterns for higher quality codeStructure and organize effective Go packages and APIsBuild performant concurrent programs with Go's unique concurrencyGo by Example explores what makes Go so dramatically different from other languages. Through hands-on and realistic project examples--like command-line tools, web services, and scalable concurrent programs--it helps experienced developers unlearn habits and quickly become productive in crafting truly Go-like, high-quality code.

About the technology

You can't appreciate the simplicity, explicitness, and pragmatism of Go until you see it with your own eyes Even a quick glance at an elegant interface or a bit of clean error handling code reveals why Go was the language of choice for Kubernetes, Docker, and Terraform.

About the book

Go by Example unpacks real Go programs to highlight the language features and idiomatic coding practices used by the pros. In it, you'll dissect and explore examples of command-line tools, concurrent programs, web services, and more as you learn to write Go code that's simple, efficient, and testable.

What's insideAcquire the "Go mindset"Write idiomatic, reliable, and maintainable codeStructure Go projects and packagesBest practices and antipatternsAbout the reader

For experienced programmers.

About the author

Inanc Gumus is a veteran programmer who has specialized in Go since 2012. Inanc has educated over 100,000 developers through his social presence, GitHub repositories, online courses, and his popular blog.

Table of Contents

1 Getting started
2 Idioms and testing
3 Test coverage and optimization
4 Command-line interfaces
5 Dependency injection
6 Synchronous APIs for concurrency
7 Responsive and efficient programs
8 Structuring packages and services
9 Composition patterns
10 Polymorphic storage

• Format: Paperback
• Language: English
• ISBN: 1617299898
• ISBN13: 9781617299896
• Release Date: September 2025
• Publisher: Manning Publications
• Length: 336 Pages
• Weight: 1.35 lbs.
• Dimensions: 0.7" x 7.4" x 9.2"