Book Image

The Go Workshop

By : Delio D'Anna, Andrew Hayes, Sam Hennessy, Jeremy Leasor, Gobin Sougrakpam, Dániel Szabó
Book Image

The Go Workshop

By: Delio D'Anna, Andrew Hayes, Sam Hennessy, Jeremy Leasor, Gobin Sougrakpam, Dániel Szabó

Overview of this book

The Go Workshop will take the pain out of learning the Go programming language (also known as Golang). It is designed to teach you to be productive in building real-world software. Presented in an engaging, hands-on way, this book focuses on the features of Go that are used by professionals in their everyday work. Each concept is broken down, clearly explained, and followed up with activities to test your knowledge and build your practical skills. Your first steps will involve mastering Go syntax, working with variables and operators, and using core and complex types to hold data. Moving ahead, you will build your understanding of programming logic and implement Go algorithms to construct useful functions. As you progress, you'll discover how to handle errors, debug code to troubleshoot your applications, and implement polymorphism using interfaces. The later chapters will then teach you how to manage files, connect to a database, work with HTTP servers and REST APIs, and make use of concurrent programming. Throughout this Workshop, you'll work on a series of mini projects, including a shopping cart, a loan calculator, a working hours tracker, a web page counter, a code checker, and a user authentication system. By the end of this book, you'll have the knowledge and confidence to tackle your own ambitious projects with Go.
Table of Contents (21 chapters)
Free Chapter
1. Variables and Operators
2. Logic and Loops


There is software that's meant to be used by a single user, and most of what you've learned so far in this book allows you to develop such applications. There is other software, however, that is meant to be used by several users at the same time. An example of this is a web server. You created web servers in Chapter 15, HTTP Servers. They are designed to serve websites or web applications that are generally used by thousands of users at the same time.

When multiple users are accessing a web server, it sometimes needs to perform a series of actions that are totally independent and whose result is the only thing that matters to the final output. All these situations call for a type of programming in which different tasks can be executed at the same time, independently from each other. Some languages allow parallel computation, where tasks are computed simultaneously. However, in some languages, such as Go, tasks are accomplished by the machine one piece per...