Magento 2 Developer's Guide

Introduction

The book "Magento 2 Developers Guide" (author Branko Ajzele, 2016, 360 pages) is a practical guide for PHP developers who want to master creating modules, plugins, and themes for one of the most popular e-commerce platforms — Magento 2. Despite being published several years ago, the book remains relevant for understanding the fundamental principles of Magento 2 architecture, especially for those transitioning from Magento 1 or starting from scratch.

What the book is about

The book systematically covers the development process in Magento 2: from installation and environment setup to creating complex modules using Dependency Injection, plugins, observers, and service contracts. Special attention is given to:

• Directory structure and PSR-4 autoloading;
• Working with Object Manager and Dependency Injection;
• Creating plugins (interceptors) and observers;
• Developing user interfaces through UI Components;
• Working with databases: setup scripts, schemas, EAV models;
• Creating REST and SOAP APIs;
• Testing modules (unit tests, integration tests);
• Deployment and performance optimization.

Who this book is for

The book is aimed at intermediate and advanced PHP developers who are already familiar with the basics of OOP, MVC, and have basic experience with Magento 1 or other CMS systems. Beginners unfamiliar with Magento may need additional study of the platform's fundamentals, but the book provides enough examples and explanations for a quick start.

What the reader will learn

• How to set up a local development environment for Magento 2;
• How to create and register your own module;
• How to use Dependency Injection to replace and extend functionality;
• How to write plugins to intercept and modify methods;
• How to create observers for handling events;
• How to develop UI components (forms, grids, buttons);
• How to work with EAV models and write setup scripts;
• How to create REST API endpoints;
• How to write tests for your code;
• How to prepare a module for publication on Magento Marketplace.

Strengths

The main advantage of the book is its practical focus. Each chapter contains code that can be immediately applied in a real project. The author thoroughly explains Magento 2 architectural decisions, such as Service Contracts and Virtual Types, which helps avoid common mistakes. The book is written in clear language, without unnecessary fluff, and is well-structured: from simple to complex. The chapter on testing deserves special mention — it provides a solid foundation for writing quality code.

Who it is recommended for

I recommend this book to everyone who professionally develops on Magento 2 or plans to switch to this platform. It will be useful for both freelancers and employees of companies developing online stores. If you have already worked with Magento 1, this book will help you quickly grasp the key differences of Magento 2. For complete beginners in Magento, it is better to start with the official documentation and then return to this guide for in-depth study.