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

The Go HTTP Client and Its Uses

The Go HTTP client is part of the Go standard library, specifically the net/http library. There are two main ways to use it. The first is to use the default HTTP client that is included in the net/http library. It's simple to use and allows you to get up and running quickly. The second way is to create your own HTTP client based on the default HTTP client. This allows you to customize the requests and various other things. It takes longer to configure, but it gives you much more freedom and control over the requests you send.

When using an HTTP client, you can send different types of requests. While there are many types of requests, we will discuss the two main ones, the GET request and the POST request. For instance, if you wanted to retrieve data from a server, you would send a GET request. When you enter a web address in your web browser, it will send a GET request to the server at that address and then display the data it returns. If you...