@Override
  public String processGetOther(
      HttpExchange httpExchange, List<String> urlParams, Map<String, Object> requestParams) {
    String operation = (String) requestParams.get("operation");
    if (operation.equals(RETRIEVE_TOKEN)) {
      String token = (String) requestParams.get("token");
      Ticket ticket = ticketService.getByToken(token);

      Gson gson = new Gson();
      String jsonTicket = gson.toJson(ticket);
      return jsonTicket;
    }

    return "";
  }