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


JSON stands for JavaScript Object Notation. It is widely used in many programming languages for transferring and storing data. Often, this is done by transferring data from a web server to a client. JSON is transferred in web applications and is even used to store data in a file for later processing. We will look at various examples of where this is done in this chapter. JSON is minimal; it is not as verbose as XML. It is self-describing; this increases its readability and the ease of writing it. JSON is a text format that is language-independent:

Figure 11.1: Describing JSON

JSON is widely used as a data format for exchanging data between web applications and for various server-to-server communications. A common API that is used in applications is the REST API. JSON is frequently used in applications that utilize the REST API. One of the reasons that JSON is used in the REST API instead of XML is because it is less verbose than XML, more lightweight,...