Chapter 3 : Structure of a Magento 2 Module

What is the "Controller" Directory in Magento 2?

In Magento 2, the "Controller" directory plays an important role in handling requests and rendering responses for the application. You can think of it as a bridge between the requests users make and the behind-the-scenes logic that processes those requests. It helps determine how the application responds to different types of HTTP requests.

In this article, we'll break down the structure and function of the "Controller" directory, with examples to show how it works in practice.

What Does the Controller Directory Contain?

The Controller directory is located in Magento 2 modules at app/code/{Vendor}/{Module}/Controller. It holds PHP classes that act as controllers. These controllers are responsible for processing incoming HTTP requests and deciding how the application should respond.

Generally, controllers handle two types of requests:

• Frontend Requests

In Magento 2, the view directory plays a crucial role in defining how your module's content is displayed on the frontend and backend.

This directory contains all the necessary files to manage the layout, templates, and static content. Understanding the structure and usage of the view folder is essential for developers looking to customize the visual aspects of their Magento 2 modules.

Structure of the View Directory

app/code/{Vendor}/{Module}/view
│
├── adminhtml/
│   ├── layout/
│   ├── templates/
│   ├── web/
│
├── frontend/
│   ├── layout/
│   ├── templates/
│   ├── web/

• adminhtml/: Contains files related to the Magento 2 admin panel (backend).
• frontend/: Contains files for the frontend or the store that customers interact with.
• layout/: Stores XML layout files, which define how the page is constructed.
• templates/: Stores PHTML template

What is the "etc" Directory in Magento 2?

In Magento 2, the "etc" directory is super important because it contains all the configuration files for your module. Think of it as the control center that tells Magento how your module should behave. It helps set up everything from enabling your module to defining how it interacts with other parts of Magento. Understanding how to use this directory is essential for anyone developing in Magento. In this blog post, we'll dive into what the "etc" directory is, its key files, and some practical examples to show you how to use them.

What is the etc Directory?

The "etc" directory holds various configuration files that help Magento understand how to work with your module. It lays the groundwork for everything, including enabling your module and defining its services, routes, and more. You can typically find the etc directory structured like this:

app/code/Vendor/ModuleName/etc/

Key Configuration