{
  "type": "object",
  "properties": {
    "order_number": { "type": "string" },
    "date": { "type": "string" },
    "vendor": { "type": "string" },
    "customer": { "type": "string" },
    "total": { "type": "number" },
    "currency": { "type": "string" },
    "items": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "description": { "type": "string" },
          "quantity": { "type": "number" },
          "amount": { "type": "number" }
        }
      }
    }
  },
  "required": ["order_number", "total"]
}