fragment MenuItem on MenuItem {
  id
  label @nullToUndefined
  to: path @nullToUndefined
  target
}

query MenuItems($location: MenuLocationEnum) {
  menuItems(where: { location: $location, parentDatabaseId: 0 }) {
    nodes {
      ...MenuItem
      childItems {
        nodes {
          ...MenuItem
        }
      }
    }
  }
}