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# Magento_CustomerGraphQl module
This module provides type and resolver information for the GraphQl module to generate customer information endpoints.
## Installation
Before installing this module, note that the Magento_CustomerGraphQl is dependent on the following modules:
- `Magento_GraphQl`
- `Magento_Customer`
Before disabling or uninstalling this module, note that the following modules depends on this module:
- `Magento_WishlistGraphQl`
For information about a module installation in Magento 2, see [Enable or disable modules](https://experienceleague.adobe.com/docs/commerce-operations/installation-guide/tutorials/manage-modules.html).
## Extensibility
Extension developers can interact with the Magento_CustomerGraphQl module. For more information about the Magento extension mechanism, see [Magento plugins](https://developer.adobe.com/commerce/php/development/components/plugins/).
[The Magento dependency injection mechanism](https://developer.adobe.com/commerce/php/development/components/dependency-injection/) enables you to override the functionality of the Magento_CustomerGraphQl module.
## Additional information
You can get more information about [GraphQl In Magento 2](https://developer.adobe.com/commerce/webapi/graphql/).
### GraphQl Query
- `customer` query - returns information about the logged-in customer, store credit history and customer’s wishlist
- `isEmailAvailable` query - checks whether the specified email has already been used to create a customer account. A value of true indicates the email address is available, and the customer can use the email address to create an account
[Learn more about customer query](https://developer.adobe.com/commerce/webapi/graphql/schema/customer/queries/customer/).
[Learn more about isEmailAvailable query](https://developer.adobe.com/commerce/webapi/graphql/usage/is-email-available.html).