{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "product_id": {
      "type": "string",
      "description": "Exact grouped BestPrice product id returned by search_products, in bp_<id> form."
    },
    "postal_code": {
      "type": "string",
      "pattern": "^[0-9]{5}$",
      "description": "Five-digit Greek delivery postal code used to calculate shipping and total cost."
    },
    "objective": {
      "default": "lowest_total_cost",
      "description": "How to rank offers. Prefer lowest_total_cost because it includes known shipping.",
      "type": "string",
      "enum": [
        "lowest_total_cost",
        "lowest_item_price",
        "merchant_rating"
      ]
    },
    "in_stock_only": {
      "default": true,
      "description": "When true, omit offers that are not currently available.",
      "type": "boolean"
    },
    "minimum_merchant_rating": {
      "default": 0,
      "description": "Optional minimum merchant rating on a 0 to 5 scale.",
      "type": "number",
      "minimum": 0,
      "maximum": 5
    },
    "limit": {
      "default": 10,
      "description": "Maximum number of current merchant offers to return, from 1 to 10.",
      "type": "integer",
      "minimum": 1,
      "maximum": 10
    }
  },
  "required": [
    "product_id",
    "postal_code"
  ],
  "additionalProperties": false
}