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)
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Cross-compilation is the process of generating a binary executable file for a different architecture than the one on which we are working without having access to other machines. The main benefit that we receive from cross-compilation is that we do not need a second or third machine to create and distribute executable files for different architectures. This means that we basically need just a single machine for our development. Fortunately, Go has built-in support for cross-compilation.

To cross-compile a Go source file, we need to set the GOOS and GOARCH environment variables to the target operating system and architecture, respectively, which is not as difficult as it sounds.

You can find a list of available values for the GOOS and GOARCH environment variables at Keep in mind, however, that not all GOOS and GOARCH combinations are valid.

The code of crossCompile.go is the following:

package main...