curl --request POST \
  --url https://api.globalwebindex.com/v2/locations/filter \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "include": {
    "regions": true
  },
  "namespaces": [
    {
      "code": "<string>"
    }
  ],
  "waves": [
    {
      "code": "<string>"
    }
  ]
}
'

{
  "locations": [
    {
      "accessible": true,
      "code": "<string>",
      "id": "<string>",
      "iso_code": "<string>",
      "name": "<string>",
      "namespaces": [
        {
          "code": "<string>",
          "wave_codes": [
            "<string>"
          ]
        }
      ],
      "region": {
        "area": "<string>",
        "code": "<string>",
        "id": "<string>",
        "name": "<string>"
      }
    }
  ]
}