---
title: "pop · RUAL Documentation"
description: "Remove and return one random member from a set"
canonical: https://docs.rual.nl/block-types/redis/redis_set_pop
language: en
---

# pop

This block is part of the [`redis`](https://docs.rual.nl/block-types/redis) group and was last modified in core [`v13.0.7`](https://docs.rual.nl/core-versions/130007).

### Redis Key Selection Required

This block relies on a Redis key to perform its redis releated actions. You must manually select the Redis key you want to use in the flow in the blueprint using the Redis key selector modal. To access the modal, click the white button on the block.

Remove and return one random member from a set

- flow `flow`

- member `value`

- success `condition`

- error `value`

- key `v13.0.7` `value`

| `redis spop` |
| --- |
| `spop` |

A typical wiring for [pop](https://docs.rual.nl/block-types/redis/redis_set_pop): a [function trigger](https://docs.rual.nl/block-types/globals/trigger_custom_function) starts the flow; [value](https://docs.rual.nl/block-types/value/value_default) feeds the `set` pin; the `flow` out pin feeds [debug](https://docs.rual.nl/block-types/state%20ui/state_debug).

![Studio canvas example for the pop block: typical wiring for pop.](https://docs.rual.nl/canvas-examples/redis_set_pop.png)

### Version history

Introduced in [`v13.0.7`](https://docs.rual.nl/core-versions/130007).

### Service documentation