Chapter 1, Upgrading from Magento 1, provides an introduction to how you can install and migrate the data from a Magento 1 to a Magento 2 shop. We will also prepare our development environment in this chapter.

Chapter 2, Working with Products, gives you a more functional information about the possibilities of displaying products in your Magento shop.

Chapter 3, Theming, explains how you can customize the look and feel of your webshop using a custom Magento theme.

Chapter 4, Creating a Module, describes how to create a basic Magento module; how to extend that module with custom configurations, such as a custom page, translations, and blocks; and how to change behavior of standard Magento classes.

Chapter 5, Databases and Modules, demonstrates how you can extend a Magento module with database interactions, such as install and upgrade scripts, a custom entity that represents a database table.

Chapter 6, Magento Backend, shows you how to integrate a Magento module with the backend, such as adding configuration pages, creating overview pages, and extending the admin menu.

Chapter 7, Event Handlers and Cronjobs, describes how the event-driven architecture is implemented in Magento and how to integrate this in your module. Later in this chapter, you will learn how to create cronjobs and how to test them.

Chapter 8, Creating a Shipping Module, shows you how to create a module with the configurations that are required for a new shipping method.

Chapter 9, Creating a Product Slider Widget, will cover how to create a module with a custom widget, how to build the backend interface, and how to provide a good UI in the frontend of that widget.

Chapter 10, Performance Optimization, describes how to benchmark a site to explore the limits and how to improve the performance using different techniques such as Redis and Memcached.

Chapter 11, Debugging and Unit Testing, shows you how to use the PHP debugger Xdebug and how we can create automated tests using the Magento 2 testing framework.

This book is for web programmers who are familiar with PHP and want to start with Magento 2. This book is also for Magento 1 developers who want to know how everything works in Magento 2.

This book will start with the basics of Magento 2 development and will end with the more advanced topics. Even if you knowledge about Magento development, this book is a good reference if you want to more about a particular topic in Magento.

In this book, you will find several headings that appear frequently (Getting ready, How to do it, How it works, There's more, and See also).

To give clear instructions on how to complete a recipe, we use these sections as follows:

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "The widget.xml file is used to define widgets in the Magento installation."

A block of code is set as follows:

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:App/etc/routes.xsd">
    <router id="standard">
        <route id="helloworld" frontName="helloworld">
            <module name="Packt_HelloWorld" />
        </route>
    </router>
</config>

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Clicking the Next button moves you to the next screen."

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