Book Image

Mastering Go – Third Edition - Third Edition

By : Mihalis Tsoukalos
5 (2)
Book Image

Mastering Go – Third Edition - Third Edition

5 (2)
By: Mihalis Tsoukalos

Overview of this book

Mastering Go is the essential guide to putting Go to work on real production systems. This freshly updated third edition includes topics like creating RESTful servers and clients, understanding Go generics, and developing gRPC servers and clients. Mastering Go was written for programmers who want to explore the capabilities of Go in practice. As you work your way through the chapters, you’ll gain confidence and a deep understanding of advanced Go concepts, including concurrency and the operation of the Go Garbage Collector, using Go with Docker, writing powerful command-line utilities, working with JavaScript Object Notation (JSON) data, and interacting with databases. You’ll also improve your understanding of Go internals to optimize Go code and use data types and data structures in new and unexpected ways. This essential Go programming book will also take you through the nuances and idioms of Go with exercises and resources to fully embed your newly acquired knowledge. With the help of Mastering Go, you’ll become an expert Go programmer by building Go systems and implementing advanced Go techniques in your projects.
Table of Contents (17 chapters)
14
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15
Index

Summary

In this chapter, we learned about interfaces, which are like contracts, and also about type methods, type assertion, and reflection. Although reflection is a very powerful Go feature, it might slow down your Go programs because it adds a layer of complexity at runtime. Furthermore, your Go programs could crash if you use reflection carelessly.

The last section of this chapter discussed writing Go code that follows the principles of object-oriented programming. If you are going to remember just one thing from this chapter, it should be that Go is not an object-oriented programming language, but it can mimic some of the functionality offered by object-programming languages, such as Java, Python, and C++.

The next chapter discusses Go packages, functions, and automation using GitHub and GitLab CI/CD systems.