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 Database

In order to make this chapter more appealing, let's see how you can have a database solution called Postgres on your system and configure it for yourself so you can try out the following examples.

First, we need to grab the installer from Select the one which is appropriate. The installer is very easy to use, and I suggest you accept the defaults:

  1. Run the installer:

    Figure 13.1: Selecting the installation directory

  2. Leave the default components:

    Figure 13.2: Selecting components to install

  3. Leave the default data directory:

Figure 13.3: Selecting the data directory

It will ask for a password, which you need to remember because this is the master password for your database. Start!123 is the password for this example. The database is running on the local port 5432. The pgAdmin GUI tool will also be installed, and, once the installer completes, you can start pgAdmin to connect to the database.