{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/Money",
  "title": "Money",
  "type": "object",
  "description": "A monetary value with currency code and amount in the smallest currency unit.",
  "required": [
    "currencyCode",
    "centAmount"
  ],
  "properties": {
    "currencyCode": {
      "type": "string",
      "pattern": "^[A-Z]{3}$",
      "description": "ISO 4217 three-letter currency code (e.g., USD, EUR)."
    },
    "centAmount": {
      "type": "integer",
      "description": "The amount in the smallest indivisible unit of the currency."
    },
    "fractionDigits": {
      "type": "integer",
      "description": "Number of fraction digits for the currency. Defaults to 2."
    }
  }
}