To get the most out of this book

This book requires a UNIX computer with a relatively recent Go version installed, which includes any machine running macOS X, macOS, or Linux. Most of the presented code also runs on Microsoft Windows machines without any changes.

To get the most out of this book, you should try to apply the knowledge of each chapter in your own programs as soon as possible and see what works and what does not! As I told you before, try to solve the exercises found at the end of each chapter or create your own programming problems.

Download the example code files

The code bundle for the book is hosted on GitHub at https://github.com/mactsouk/mastering-Go-3rd. We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Download the color images

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. You can download it here: https://static.packt-cdn.com/downloads/9781801079310_ColorImages.pdf.

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, folder names, filenames, file extensions, pathnames, and user input. For example, "The star of this chapter will be the net/http package, which offers functions that allow you to develop powerful web servers and web clients."

A block of code is set as follows:

package main
import (
    "fmt"
    "math/rand"
    "os"
    "path/filepath"
    "strconv"
    "time"
)

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are highlighted:

package main
import (
    "fmt"
    "math/rand"
    "os"
    "path/filepath"
    "strconv"
    "time"
)

Any command-line input or output is written as follows:

$ go run www.go
Using default port number:  :8001
Served: localhost:8001

Bold: Indicates a new term, an important word, or words that you see on the screen, for example, in menus or dialog boxes. For example: "The UNIX logging service has support for two properties named logging level and logging facility."

Warnings or important notes appear like this.

Tips and tricks appear like this.