{
  "fields": [
    {
      "fieldName": "receipt_number",
      "fieldType": "text",
      "description": "Receipt or transaction number",
      "required": true
    },
    {
      "fieldName": "date",
      "fieldType": "date",
      "description": "Purchase date",
      "required": true
    },
    {
      "fieldName": "merchant_name",
      "fieldType": "text",
      "description": "Name of the merchant",
      "required": true
    },
    {
      "fieldName": "merchant_address",
      "fieldType": "address",
      "description": "Merchant location",
      "required": false
    },
    {
      "fieldName": "total_amount",
      "fieldType": "number",
      "description": "Total purchase amount",
      "required": true
    },
    {
      "fieldName": "payment_method",
      "fieldType": "text",
      "description": "Payment method used (cash, card, etc.)",
      "required": false
    },
    {
      "fieldName": "items",
      "fieldType": "text",
      "description": "List of purchased items",
      "required": false
    }
  ]
}