docs: RequestData parseFormData(final HttpServerExchange exchange) throws IOException {
          // Read post parameters
          final FormDataParser parser = parserFactory.createParser(exchange);
          final FormData formData = parser.parseBlocking();
          final RequestData data = new RequestData();
          for (String name : formData) {
              final HttpString key = new HttpString(name);
              data.add(key, formData.get(name));
          }
          return data;
      }