Orders Applicable Discount Structure

{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/toast-tab/refs/heads/main/json-structure/orders-applicable-discount-structure.json",
  "name": "ApplicableDiscount",
  "description": "A wrapper object that contains information about a discount that you\ncan apply to an order, and which checks or menu item selections\nyou can apply it to.\n",
  "type": "object",
  "properties": {
    "discount": {
      "x-toast-read-only": true,
      "description": "A `ToastReference` object containing the identifiers of the discount.\nResponse only.\n",
      "type": "object",
      "$ref": "#/$defs/ToastReference"
    },
    "applicableChecks": {
      "description": "If the discount is applicable to a check, this value holds an\narray of `ExternalReference` objects containing the identifiers of the checks.\n",
      "type": "array",
      "items": {
        "$ref": "#/$defs/ExternalReference"
      }
    },
    "applicableSelections": {
      "description": "If the discount is applicable to a menu item selection, this\nvalue holds an array of `ExternalReference` objects containing\nthe identifiers of the menu items.\n",
      "type": "array",
      "items": {
        "$ref": "#/$defs/ExternalReference"
      }
    }
  },
  "required": [
    "discount"
  ],
  "definitions": {
    "ToastReference": {
      "type": "object",
      "description": "A wrapper object with fields that allow reference to a Toast entity by Toast GUID.",
      "required": [
        "guid",
        "entityType"
      ],
      "properties": {
        "guid": {
          "description": "The GUID maintained by the Toast platform.",
          "type": "string",
          "example": "5a401af8-d2e2-4090-8c45-9f87b8b6c4d1"
        },
        "entityType": {
          "x-toast-read-only": true,
          "description": "The type of object this is. Response only.",
          "type": "string",
          "example": "string"
        }
      },
      "name": "ToastReference"
    },
    "ExternalReference": {
      "type": "object",
      "description": "A wrapper object with fields that allow reference to a Toast platform entity by Toast GUID or a partner's identifier.",
      "allOf": [
        {
          "$ref": "#/$defs/ToastReference"
        },
        {
          "type": "object",
          "properties": {
            "externalId": {
              "description": "External identifier string that is prefixed by the naming authority. You can use the orders API to set an `externalId` for an order and then GET the order with that `externalId`.",
              "type": "string"
            }
          }
        }
      ],
      "name": "ExternalReference"
    }
  }
}