{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Sale",
  "description": "A point-of-sale transaction.",
  "$id": "https://raw.githubusercontent.com/api-evangelist/lightspeed-pos/refs/heads/main/json-schema/retail-r-series-sale-schema.json",
  "type": "object",
  "properties": {
    "saleID": {
      "type": "string",
      "description": "Unique sale identifier."
    },
    "timeStamp": {
      "type": "string",
      "format": "date-time",
      "description": "When the sale occurred."
    },
    "completed": {
      "type": "boolean",
      "description": "Whether the sale has been completed."
    },
    "total": {
      "type": "string",
      "description": "Sale total including tax."
    },
    "totalDue": {
      "type": "string",
      "description": "Amount still owed on the sale."
    },
    "displayableTotal": {
      "type": "string",
      "description": "Human-readable total."
    },
    "discountPercent": {
      "type": "string",
      "description": "Sale-level discount percentage."
    },
    "customerID": {
      "type": "string",
      "description": "Identifier of the customer on the sale."
    },
    "employeeID": {
      "type": "string",
      "description": "Identifier of the employee who rang the sale."
    },
    "shopID": {
      "type": "string",
      "description": "Identifier of the shop where the sale occurred."
    },
    "registerID": {
      "type": "string",
      "description": "Identifier of the register used."
    },
    "SaleLines": {
      "type": "object",
      "description": "The line items on the sale.",
      "properties": {
        "SaleLine": {
          "type": "array",
          "items": {
            "type": "object",
            "description": "A single line item on a sale.",
            "properties": {
              "saleLineID": {
                "type": "string",
                "description": "Unique sale-line identifier."
              },
              "itemID": {
                "type": "string",
                "description": "Identifier of the item sold."
              },
              "saleID": {
                "type": "string",
                "description": "Identifier of the parent sale."
              },
              "unitQuantity": {
                "type": "string",
                "description": "Quantity sold."
              },
              "unitPrice": {
                "type": "string",
                "description": "Price per unit."
              },
              "normalUnitPrice": {
                "type": "string",
                "description": "List price per unit before discounts."
              },
              "discountID": {
                "type": "string",
                "description": "Identifier of any applied discount."
              }
            }
          }
        }
      }
    }
  }
}