parse_formatted_parameters

# File actionpack/lib/action_dispatch/http/parameters.rb, line 60
      def parse_formatted_parameters(parsers)
        return yield if content_length.zero?

        strategy = parsers.fetch(content_mime_type.symbol) { return yield }

        begin
          strategy.call(raw_post)
        rescue # JSON or Ruby code block errors
          my_logger = logger || ActiveSupport::Logger.new($stderr)
          my_logger.debug "Error occurred while parsing request parameters.\nContents:\n\n#{raw_post}"

          raise ParamsParser::ParseError
        end
      end