Install extension using composer Magento 2

Question

I'm using magento 2 , and I'm trying to install an extension from composer.json file , now I've installed composer through SSH , but I'm new to composer installations , how do I proceed now with the installation ?

• Barbanet: Is it the extension on a public or private composer repository?
• alexcr: I think is public , not sure about that , as I told you I'm new to composer , by the way this is the extension marketplace.magento.com/addshoppers-social-login.html
• Harris: what is the file location when you install it through composer

Answer 1

Follow below steps to install magento2 extension (2.1.7)

cd <your Magento install dir>
composer require <component-name>:<version> --no-update
composer update
bin/magento setup:upgrade
bin/magento setup:di:compile

Source: http://devdocs.magento.com/guides/v2.1/cloud/howtos/install-components.html

Answer 2

For Composer installation see here official Site of composer. After installation it, You can install Magento 2 extensions with Composer: add an extension's package to the root composer.json and then do composer update and bin/magento setup:upgrade. Now clear the cache bin/magento cache:clean.

Done!

• alexcr: but in my root folder there is already a composer.json , is not that gonna affect in any way ?
• Steve Johnson: You can make a backup copy of composer.json first. Use the command composer require <module name>, where <module name> is located in <sample module root dir>/etc/module.xml as the value of module name=. That updates composer.json so all you have to do is run composer update to install it.

Answer 3

This is the sample how to install the Adm Developer Toolbar using the composer.

composer require vpietri/adm-quickdevbar &&
php bin/magento --clear-static-content module:enable ADM_QuickDevBar && 
php bin/magento setup:upgrade