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


In the previous chapter, you learned how to interact with the system your Go app is running on. You learned the importance of exit codes and how to customize your scripts to take arguments, thus adding flexibility to your applications. You also learned the mastery of handling different signals that your application receives.

In this chapter, you will further master your Go skills by learning how to use SQL and databases in Go. As a developer, it is impossible to get by without a proper understanding of persistent data storage and databases. Our applications process input and produce output, but most of the time, if not in all cases, a database is involved in the process. This database can be in memory (stored in the computer's RAM) or file-based (a single file in a directory), and it can live on local or remote storage. The cloud can provide you with database services; both Azure and AWS can help you with that.

What we aim to do in this chapter is to make you...