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

Static Resources

Everything you've learned so far in this book, up to the last exercise, is sufficient in order to build web applications and dynamic websites; you just need to put all the pieces together. What you've been doing in this chapter is returning messages that are different in nature, but that are all hardcoded as strings. Even dynamic messages have been based on templates hardcoded in the source file of the exercises and activities. Let's now consider something. In the case of the first "hello world" server, the message never changed. If we wanted to modify the message and return a "Hello galaxy" message, we would have to change the text in the code and then recompile and/or run the server again. What if you wanted to sell your simple "hello" server and give the option to everybody to specify a custom message? Of course, you should give the source code to everybody so that they could recompile and run the server. Although you...