Book Image

Drupal 8 Development Cookbook - Second Edition

By : Matt Glaman
Book Image

Drupal 8 Development Cookbook - Second Edition

By: Matt Glaman

Overview of this book

Began as a message board, Drupal today is open source software maintained and developed by a community of over 1,000,000 users and developers. Drupal is used by numerous local businesses to global corporations and diverse organizations all across the globe. With Drupal 8’s exciting features it brings, this book will be your go-to guide to experimenting with all of these features through helpful recipes. We’ll start by showing you how to customize and configure the Drupal environment as per your requirements, as well as how to install third-party libraries and then use them in the Drupal environment. Then we will move on to creating blocks and custom modules with the help of libraries. We will show you how to use the latest mobile-first feature of Drupal 8, which will help you make your apps responsive across all the major platforms. This book will also show you how to incorporate multilingual facilities in your sites, use web services and third-party plugins with your applications from inside Drupal 8, and test and deploy your apps.
Table of Contents (20 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

Implementing and using a third-party PHP library

Drupal 8 uses Composer for package dependencies and autoloading classes based on PSR standards. This allows us to use any available PHP library much more easily than in previous versions of Drupal.

In this recipe, we will add the IpRestrict Stack Middleware library to add the functionality to whitelist access to the Drupal site based on allowed IP addresses.

Getting ready

You need to have Composer installed in order to use the Composer manager workflow. You can follow the Getting Started documentation at We will add the alsar/stack-ip-restrict library as a dependency to our Drupal installation.

How to do it...

  1. Using your terminal, navigate to your Drupal site's root directory.
  2. Use the require command from Composer to add the library:
composer require alsar/stack-ip-restrict
  1. Composer will then add the library to the composer.json file and install the library along with any dependencies. Its namespace will now...