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


As you develop software programs, there are going to be times that your program behaves in an unintended way. For instance, the program could be throwing an error and might crash. A crash is when our code stops functioning midway and then exits abruptly. Perhaps, the program has given us unexpected results. For example, we request a video streaming service for the movie Rocky 1, but instead get Creed 1! Or, you deposited a check into your bank account but, instead of being credited, the bank software debited your account. These examples of software programs behaving in an unintended way are called bugs. Sometimes, "bug" and "error" are used interchangeably. In Chapter 6, Errors, in the What Are Errors? section, we discussed how there are three different types of errors or bugs: syntax errors, runtime errors, and logic errors. We also examined examples and saw the difficulty of discovering the location of each type of error.

The process of determining...