{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "EnrichedPairResponse",
  "description": "Enriched pair conversion response with target currency metadata (Business / Volume plans).",
  "type": "object",
  "properties": {
    "result": {
      "type": "string",
      "description": "Status indicator."
    },
    "documentation": {
      "type": "string",
      "format": "uri",
      "description": "Link to API documentation."
    },
    "terms_of_use": {
      "type": "string",
      "format": "uri",
      "description": "Link to terms of use."
    },
    "time_last_update_unix": {
      "type": "integer",
      "description": "Last update Unix timestamp."
    },
    "time_last_update_utc": {
      "type": "string",
      "description": "Last update in UTC."
    },
    "time_next_update_unix": {
      "type": "integer",
      "description": "Next update Unix timestamp."
    },
    "time_next_update_utc": {
      "type": "string",
      "description": "Next update in UTC."
    },
    "base_code": {
      "type": "string",
      "description": "Supplied base currency."
    },
    "target_code": {
      "type": "string",
      "description": "Supplied target currency."
    },
    "conversion_rate": {
      "type": "number",
      "description": "Exchange rate between base and target."
    },
    "target_data": {
      "type": "object",
      "description": "Enriched data for the target currency.",
      "properties": {
        "locale": {"type": "string", "description": "Country / locale name."},
        "two_letter_code": {"type": "string", "description": "ISO 3166-1 alpha-2 country code."},
        "currency_name": {"type": "string", "description": "Full currency name."},
        "currency_name_short": {"type": "string", "description": "Short currency name."},
        "display_symbol": {"type": "string", "description": "Unicode hex reference for the currency symbol."},
        "flag_url": {"type": "string", "format": "uri", "description": "URL to the flag image."}
      }
    }
  },
  "required": ["result", "base_code", "target_code", "conversion_rate"]
}