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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Working with XML

This section briefly describes how to work with XML data in Go using records. The idea behind XML and Go is the same as with JSON and Go. You put tags in Go structures in order to specify the XML tags and you can still serialize and deserialize XML records using xml.Unmarshal() and xml.Marshal(), which are found in the encoding/xml package. However, there exist some differences that are illustrated in xml.go:

package main
import (
type Employee struct {
    XMLName   xml.Name `xml:"employee"`
    ID        int      `xml:"id,attr"`
    FirstName string   `xml:"name>first"`
    LastName  string   `xml:"name>last"`
    Height    float32  `xml:"height,omitempty"`
    Comment string `xml:",comment"`

This is where the structure for the XML data is defined. However, there is additional information regarding the name and the type of each...