List a service’s countries

{
  "data": [
    {
      "countryCode": "string",
      "name": "string",
      "flag": "string",
      "serviceCount": 0,
      "availableCount": 0,
      "startingPrice": {
        "amount": 0,
        "currency": "string"
      },
      "price": {
        "min": 0,
        "max": 0,
        "average": 0,
        "currency": "string"
      },
      "pools": [
        {
          "serviceId": "string",
          "price": 0,
          "availableCount": 0,
          "successRate": 0
        }
      ]
    }
  ],
  "meta": {
    "page": -9007199254740991,
    "pageSize": -9007199254740991,
    "total": -9007199254740991,
    "totalPages": -9007199254740991,
    "hasNext": true
  }
}

{
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "The request is not valid. See `fields` for what to correct.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "AUTHENTICATION_REQUIRED",
    "message": "This endpoint requires an API key.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "NOT_FOUND",
    "message": "No such resource.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "Too many requests. Retry after the interval in `Retry-After`.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Something went wrong on our side.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "SERVICE_RESPONSE_INVALID",
    "message": "The upstream service returned an unexpected response.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "SERVICE_UNAVAILABLE",
    "message": "The service is temporarily unavailable. Try again shortly.",
    "requestId": "9f1c7b2e-…"
  }
}