{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/grubhub/main/json-schema/grubhub-promotion-schema.json",
  "title": "Promotion",
  "x-generated": "2026-09-17",
  "x-method": "derived",
  "x-source": "openapi/grubhub-orders-openapi.yml#/components/schemas/Promotion",
  "type": "object",
  "properties": {
    "amount": {
      "type": "integer",
      "description": "Amount of the payment type.",
      "format": "int32"
    },
    "payment_source": {
      "type": "string",
      "description": "Source of the payment (DINER, MERCHANT, GRUBHUB, OTHER).",
      "enum": [
        "DINER",
        "MERCHANT",
        "GRUBHUB",
        "OTHER",
        "UNKNOWN"
      ]
    },
    "tax_application": {
      "type": "string",
      "description": "How this order was taxed (PRE_TAX, POST_TAX, UNKNOWN).",
      "enum": [
        "PRE_TAX",
        "POST_TAX",
        "UNKNOWN"
      ]
    }
  },
  "description": "Information relating to any promotion applied to an order"
}