@order = {

  "header" => {
      "orderId" => 1234,
      "originType" => "catalog",
      "customerDetails" => {
          "custId" => 1234,
          "name" => "Seamus Ungabunga"
      }
  },

  "items" => [
      {
        "itemId" => 1234,
        "productId" => "X"
      },
      {
        "itemId" => 1235,
        "productId" => "Y"
      }
  ]

}