curl --request GET \
  --url https://api.gcore.com/storage/v4/object_storages/{storage_id}/buckets \
  --header 'Authorization: <api-key>'

{
  "count": 5,
  "results": [
    {
      "cors": {
        "allowed_origins": [
          "https://example.com",
          "*"
        ]
      },
      "lifecycle": {
        "expiration_days": 30
      },
      "name": "my-bucket",
      "policy": {
        "is_public": true
      },
      "storage_id": 123
    }
  ]
}