code: def on_post(self):
          
          request = self.environ['wsgi.input']
          try:
              return self.process_request(request)
          except ClientError as exc:
              return self.on_client_error(exc)
          except BadGateway as exc:
              return self.on_bad_gateway(exc)
          except InvalidConfig:
              raise
          except Exception as exc: # pragma: no cover # pylint: disable=W0703
              logging.error('Unknown exception: ', exc_info=exc)
              return self.on_internal_error()
docs: Extracts the request, feeds the module, and returns the response.