Install extensions from the command line

Code that extends or customizes Magento behavior is called an extension. You can optionally package and distribute extensions on the Magento Marketplace or another Magento extension distribution system. Extensions include:

• Modules (extend Magento capabilities)
• Themes (change the look and feel of your storefront and Admin)
• Language packages (localize the storefront and Admin)

To install an extension, you must:

1. Get an extension from the Magento Marketplace or elsewhere.
2. Get the extension’s Composer name and version.
3. Update the composer.json file in your Magento project with the name and version of the extension.
4. Verify that the extension installed properly.
5. Enable and configure the extension.

Get the extension’s Composer name and version

If you already know the extension’s Composer name and version, skip this step and continue with Update your composer.json file.

To get the extension’s Composer name and version from the Magento Marketplace:

1. Log in to Magento Marketplace with the user name and password you used to purchase the extension.

2. In the upper-right corner, click Your name > My Profile.

   

3. Click My Purchases.

   

4. Find the extension you want to install and click Technical Details.

   

Update your composer.json file

Add the extension’s name and version to your composer.json file:

1. Navigate to your Magento project directory and update your composer.json file.

   composer require <component-name>:<version>
   

   For example,

   composer require j2t/module-payplug:2.0.2
   

2. Enter your authentication keys. Your public key is your username; your private key is your password.

3. Wait for Composer to finish updating your project dependencies and make sure there aren’t any errors:

   Updating dependencies (including require-dev)
   Package operations: 1 install, 0 updates, 0 removals
     - Installing j2t/module-payplug (2.0.2): Downloading (100%)
   Writing lock file
   Generating autoload files
   

Verify the extension

To verify that the extension installed properly, run the following command:

bin/magento module:status

By default, the extension is probably disabled:

List of disabled modules:
J2t_Payplug

Enable the extension

Some extensions won’t work properly unless you clear Magento-generated static view files first. Use the --clear-static-content option to clear static view files when you’re enabling an extension.

1. Enable the extension and clear static view files:

   bin/magento module:enable J2t_Payplug --clear-static-content
   

   You should see the following output:

   The following modules have been enabled:
   - J2t_Payplug
   
   To make sure that the enabled modules are properly registered, run 'setup:upgrade'.
   Cache cleared successfully.
   Generated classes cleared successfully. Please run the 'setup:di:compile' command to generate classes.
   Generated static view files cleared successfully.
   

2. Register the extension:

   bin/magento setup:upgrade
   

3. Recompile your Magento project:

   bin/magento setup:di:compile
   

4. Verify that the extension is enabled:

   bin/magento module:status
   

   You should see output verifying that the extension is no longer disabled:

   List of enabled modules:
   J2t_Payplug
   
   List of disabled modules:
   None
   

5. Configure the extension in Admin as needed.

bin/magento cache:flush