You can add new features to Drupal by adding modules from the module archive at Drupal.org to your codebase.
To add modules to your codebase, use one of the following methods:
Adding a module using Composer (recommended)
After adding the module to your codebase, enable the module using the Drupal interface, or with a Drush command.
To add a new module to your codebase using Composer:
Ensure you have Composer installed locally in your development environment.
Open a command prompt window to access your website’s code.
Using the cd command, navigate to the directory containing your
website’s composer.json file, which is typically the directory
above your website’s docroot
directory.
Run the following command:
composer require drupal/[module_name]
where [module_name] is the project name from Drupal.org. The
preceding command will download the module to the appropriate place
in your code repository, and add the following instructions to the
require statement in your composer.json file, again replacing
[module_name] with the project name from Drupal.org:
"require": {
"drupal/[module_name]": "1.x-dev"
},
Commit the changes to your branch and push the changes to your code repository. For information about deploying your code on Cloud Platform, see Code workflows with Cloud Platform.
After you have added a module, you should enable the module.
Note
To learn more about using Composer to manage dependencies, see Using Composer to manage Drupal site dependencies on Drupal.org.
For procedures you can use to set up and use Composer locally with your Cloud Platform-hosted websites, see Using Composer with Drupal sites. The Drupal community also offers support for using Composer to install Drupal packages on Drupal.org.
In some cases, you can also install and enable modules using a Drush command, though Composer is the preferred method for Drupal 9 and later versions. To install and enable a module using Drush:
Open a command prompt window to access your website’s code.
Using the cd command, navigate to your website’s
docroot directory.
To download the module, run the following command:
drush dl [module_name]
where [module_name] is the project name from Drupal.org. For
example, the project name for the Acquia
Connector module
is acquia_connector, from
https://www.drupal.org/project/acquia_connector
Note
You can append -y to the preceding command to accept the
confirmation questions Drush displays.
Commit the change to your branch and push the change to your code repository.
After you have added a module, you should enable the module.
After adding a module to your codebase, you can enable the module by either using Drush or by using the Drupal user interface.
To enable the module from the command line:
Open a command prompt window to access your website’s code.
Using the cd command, navigate to your website’s
docroot directory.
To download the module, run the following command:
drush en [module_name]
where [module_name] is the project name from Drupal.org.
Note
You can append -y to the preceding command to accept the
confirmation questions Drush displays.
After enabling your desired module, you should review next steps to complete the module’s configuration.
To enable a module from the Drupal user interface:
Sign in to your website as an administrator.
Go to the Modules page by using one of the following methods:
In the administrative menu, click Extend.
In your browser’s address bar, go to
http://[your_site]/admin/modules (where [your_site] is your
website’s URL).
In the module list, find the module you want to enable, and then select its checkbox.
Scroll to the bottom of the webpage, and then click Install.
After enabling your desired module, you should review next steps to complete the module’s configuration.
After you have added and enabled a module locally, you must configure the module’s settings or make changes to website user permissions. For more information, ensure you review the documentation provided either with your module or on your module’s Drupal.org project page.
For information about deploying your code on Cloud Platform, see Code workflows with Cloud Platform.
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