money JSON Schema

money.json

{
  "description": "An amount of money in a specific currency.",
  "properties": {
    "value": {
      "description": "The net monetary value. A negative amount denotes a debit; a positive amount a credit. The numeric value is represented as a string so that it can be exact with no loss of precision.",
      "example": "3456.78",
      "type": "string"
    },
    "currency": {
      "description": "The [ISO 4217 currency code](https://en.wikipedia.org/wiki/ISO_4217) for this monetary value. This is always upper case ASCII. TODO: ISO 4217 defines three-character codes. However, ISO 4217 does not account for cryptocurrencies. Of note, DASH uses 4 characters.",
      "type": "string",
      "minLength": 3,
      "maxLength": 3
    }
  }
}