To get the most out of this book

To use this book, you'll need the following:

• A Unix programming environment.
• The latest version of the Go 1.x series.
• An internet connection.
• Permission to install additional packages as described in each chapter.
• Prerequisites and other installation requirements for each recipe are mentioned in the Technical requirements section of the respective chapters.

Download the example code files

You can download the example code files for this book from your account at www.packtpub.com. If you purchased this book elsewhere, you can visit www.packtpub.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packtpub.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub athttps://github.com/PacktPublishing/Go-Programming-Cookbook-Second-Edition. We also have other code bundles from our rich catalog of books and videos available athttps://github.com/PacktPublishing/. Check them out!

Code in Action

Visit the following link to check out videos of the code being run:http://bit.ly/2J2uqQ3

Conventions used

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

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "The bytes library provides a number of convenient functions when working with data."

A block of code is set as follows:

 b, err := ioutil.ReadAll(r)
 if err != nil {
 return "", err
 }
 return string(b), nil
 }

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

        package bytestrings

        import (
                "bytes"
                "io"
                "io/ioutil"
        )

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

          $ go mod init github.com/PacktPublishing/Go-Programming-Cookbook-Second-Edition/Chapter01/interfaces
        

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."