intro-composer.md

group	subgroup	title	menu_title	menu_order	menu_node	redirect_from
php-developer-guide	01_Introduction	Introduction to Composer	Introduction to Composer	2		/guides/v2.0/mktpl-quickstart/intro-composer.html /guides/v2.1/mktpl-quickstart/intro-composer.html /guides/v2.2/mktpl-quickstart/intro-composer.html

{% include install/composer-overview.md %}

Links to Magento code

The key to developing any {% glossarytooltip 3425e9ae-5edf-4fc6-b645-06023e9e5e5b %}Magento component{% endglossarytooltip %} is its composer.json{: target="_blank"}, which specifies version and dependency information for a component, among other things. You can look at Magento 2 code, such as:

• Metapackage, look at <your Magento install dir>/composer.json.
• [Customer module]({{ site.mage2000url }}app/code/Magento/Customer/composer.json){: target="_blank"}
• [Luma theme]({{ site.mage2000url }}app/design/frontend/Magento/luma/composer.json){: target="_blank"}
• [en_us language package]({{ site.mage2000url }}app/i18n/magento/en_us/composer.json){: target="_blank"}

For more information

For more information about Composer, see the Composer documentation{: target="_blank"}.