
admin.appserverGetDatabase( config as element(configuration), appserver-id as (Number|String) ) as (Number|String)
This function returns the ID of the database to which the App Server is set to execute queries against for the specified database.
http://marklogic.com/xdmp/privileges/admin/app-server
http://marklogic.com/xdmp/privileges/admin/app-server/{id}
  
  const admin = require('/MarkLogic/admin.xqy');
  const config = admin.getConfiguration()
  const groupid = admin.groupGetId(config, "Default")
  admin.appserverGetDatabase(config,
             admin.appserverGetId(config, groupid, "myAppServer"))