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


We looked at the importance of developing software that is maintainable, reusable, and modular. We discovered how Go's packages play an important part in meeting those criteria for developing software. We looked at the overall structure of a package. It is made up of a directory, can contain one or more files, and it has code that is related. A package is essentially a directory inside of your workspace that contains one or more files that are used for grouping code that is to perform a task. It exposes only the necessary parts to those using your package to get a job done. We discussed the importance of naming packages properly. We also learned how to name a package, that is, concisely, in lowercase, descriptively, using non-plural names, and avoiding generic names. Packages can be executable or non-executable. If a package is the main package, then it is an executable package. The main package must have a main function and that is where the entry point is for our package...