code: def poll(self):
          
          if self.redis_connected:
              json_item = request.get_json()
              result = None
              try:
                  key = "rest:poll:{u}".format(u=json_item['poll_id'])
                  result = self.redis_conn.get(key)
  
                  if result is not None:
                      result = json.loads(result)
                      self.logger.debug("Found previous poll")
                      self.redis_conn.delete(key)
                      return self._create_ret_object(self.SUCCESS, result)
                  else:
                      self.logger.debug("poll key does not exist")
                      return self._create_ret_object(self.FAILURE, None, True,
                                         "Could not find matching poll_id"), 404
              except ConnectionError:
                  self.logger.error("Lost connection to Redis")
                  self._spawn_redis_connection_thread()
              except ValueError:
                  extras = {
                      "value": result
                  }
                  self.logger.warning('Unparseable JSON Received from redis',
                                                  extra=extras)
                  self.redis_conn.delete(key)
                  return self._create_ret_object(self.FAILURE, None, True,
                                                 "Unparseable JSON Received "
                                                 "from redis"), 500
          self.logger.warn("Unable to poll redis, not connected")
          return self._create_ret_object(self.FAILURE, None, True,
                                         "Unable to connect to Redis"), 500
docs: Retrieves older requests that may not make it back quick
          enough