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

This chapter discussed go:generate, code profiling and tracing, benchmarking, and testing Go code. You might find the Go way of testing and benchmarking boring, but this happens because Go is boring and predictable in general and that is a good thing! Remember that writing bug-free code is important whereas writing the fastest code possible is not always that important.

Most of the time, you need to be able to write fast enough code. So, spend more time writing tests than benchmarks unless your code runs really slowly. We have also learned how to find unreachable code and how to cross-compile Go code.

Although the discussions of the Go profiler and go tool trace are far from complete, you should understand that with topics such as profiling and code tracing, nothing can replace experimenting and trying new techniques on your own!

The next chapter is about creating gRPC services in Go.