Book Image

Mastering Go - Second Edition

By : Mihalis Tsoukalos
Book Image

Mastering Go - Second Edition

By: Mihalis Tsoukalos

Overview of this book

Often referred to (incorrectly) as Golang, Go is the high-performance systems language of the future. Mastering Go, Second Edition helps you become a productive expert Go programmer, building and improving on the groundbreaking first edition. Mastering Go, Second Edition shows how to put Go to work on real production systems. For programmers who already know the Go language basics, this book provides examples, patterns, and clear explanations to help you deeply understand Go’s capabilities and apply them in your programming work. The book covers the nuances of Go, with in-depth guides on types and structures, packages, concurrency, network programming, compiler design, optimization, and more. Each chapter ends with exercises and resources to fully embed your new knowledge. This second edition includes a completely new chapter on machine learning in Go, guiding you from the foundation statistics techniques through simple regression and clustering to classification, neural networks, and anomaly detection. Other chapters are expanded to cover using Go with Docker and Kubernetes, Git, WebAssembly, JSON, and more. If you take the Go programming language seriously, the second edition of this book is an essential guide on expert techniques.
Table of Contents (20 chapters)
Title Page

Creating a web server in Go

Go allows you to create web servers on your own using some of the functions of its standard library.

Although a web server programmed in Go can do many things efficiently and securely, if what you really need is a powerful web server that will support modules, multiple websites, and virtual hosts, then you would be better off using a web server such as Apache, Nginx or Candy, which is written in Go.

The name of the Go program for this example will be www.go, and it will be presented in five parts. The first part of www.go contains the expected import statements:

package main 
import ( 

The time package is not necessary for a web server to operate. However, it is needed in this case because the server is going to send the time and date to its clients.

The second...