code: def download(self, request, **kwargs):
          '''
          example use:
          http://.../fileservice/download/med.mp4/
          or
          http://.../fileservice/med.mp4/download/
          '''
          # method check to avoid bad requests
          self.method_check(request, allowed=['get'])
          # Must be done otherwise endpoint will be wide open
          self.is_authenticated(request)
  
          response = None
          file_item_name = kwargs.get('name', None)
          if file_item_name:
              filename_absolute = helpers.get_filename_absolute(file_item_name)
              if os.path.isfile(filename_absolute):
                  response = serve(request, os.path.basename(filename_absolute), os.path.dirname(filename_absolute))
                  response['Content-Disposition'] = 'attachment; filename="{}"'.format(
                      os.path.basename(filename_absolute))
  
          if not response:
              response = self.create_response(request, {'status': 'filename not specified'})
  
          return responsf download(self, request, **kwargs):
          '''
          example use:
          http://.../fileservice/download/med.mp4/
          or
          http://.../fileservice/med.mp4/download/
          '''
          # method check to avoid bad requests
          self.method_check(request, allowed=['get'])
          # Must be done otherwise endpoint will be wide open
          self.is_authenticated(request)
  
          response = None
          file_item_name = kwargs.get('name', None)
          if file_item_name:
              filename_absolute = helpers.get_filename_absolute(file_item_name)
              if os.path.isfile(filename_absolute):
                  response = serve(request, os.path.basename(filename_absolute), os.path.dirname(filename_absolute))
                  response['Content-Disposition'] = 'attachment; filename="{}"'.format(
                      os.path.basename(filename_absolute))
  
          if not response:
              response = self.create_response(request, {'status': 'filename not specified'})
  
          return response
docs: example use:
          http://.../fileservice/download/med.mp4/
          or
          http://.../fileservice/med.mp4/download/