Content Delivery API  
 Get locales list from GraphQL
 October 29th, 2021 
 You can now query the list of existing locales directly from GraphQL:
query Locales {  _site {    locales  }}And you get back the array of the locales:
{  "data": {    "_site": {      "locales": [        "en",        "it",        "ar"      ]    }  }}