What is the «GraphQl» (`Magento_GraphQl`) module for?

dmitrii_fediuk (Dmitrii Fediuk) December 29, 2017, 3:54pm 3

Since 2017-12-04, Magento 2.3 includes a new «GraphQlCatalog» (Magento_GraphQlCatalog) module.
Since 2017-12-04, Magento 2.3 includes a new «GraphQlConfigurableProduct» (Magento_GraphQlConfigurableProduct) module.
Since 2017-12-04, Magento 2.3 includes a new «GraphQlEav» (Magento_GraphQlEav) module.
Since 2017-12-08, Magento 2.3 includes a new «GraphQlCustomer» (Magento_GraphQlCustomer) module.