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

Creating Tables

The act of creating tables aims to make logical containers that persistently hold data that belongs together. Many companies create tables for many reasons, for example, tracking employee attendance, revenue tracking, and statistics. The common goal is to provide a service for applications that make sense of it. How do these database engines control who can access what data? There are basically two approaches. The first one is Access Control Lists (ACLs), which is a simple yet powerful approach. ACL security logic tells us which user has which permissions, such as CREATE, UPDATE, and DELETE. The second approach involves inheritance and roles. This is more robust and is better suited for big enterprises. Before using a database engine, there used to be a precheck to see what the size would be and how many users would use it. There is no point in shooting a sparrow with a shotgun, and there is no shoe size that fits all. It all depends on the situation. Postgres uses...