Book Image

The Go Workshop

By : Delio D'Anna, Andrew Hayes, Sam Hennessy, Jeremy Leasor, Gobin Sougrakpam, Dániel Szabó
5 (2)
Book Image

The Go Workshop

5 (2)
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
1. Variables and Operators
2
2. Logic and Loops

Introduction

In the previous chapter, we learned about vulnerabilities that could affect your application and how to mitigate them. We learned how to secure communication and safely store data.

We will now learn some features in Go that are not obvious and can be hard to find out about. You might come across these features if you are going through the standard library. Knowing about these features will help you to understand what is going on during the execution, as some of these properties are implicitly embedded into the language.

As Go is portable across multiple operating systems (OSes) and CPU architectures, Go supports configuring these parameters to build the application. Using these build parameters, you will be able to do things such as cross-compilation, which is very rare in other programming languages.

Concepts such as memory management are hard to master, so the Go runtime manages all memory allocation and deallocation, relieving the coder of the overhead of managing...