> ## Documentation Index
> Fetch the complete documentation index at: https://upstash.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# BRPOPLPUSH

> Pop from a list's tail and push it to another, blocking until an element arrives.

<Warning>
  Prefer [`BLMOVE`](/docs/redis/commands/list/blmove) with `RIGHT` and `LEFT` in new code: `BLMOVE <source> <destination> RIGHT LEFT <timeout>`.
</Warning>

Use `BRPOPLPUSH` to pop an element from the tail of one list and push it to the head of another, blocking until the source has an element or the timeout expires.

It is the blocking form of [`RPOPLPUSH`](/docs/redis/commands/list/rpoplpush). The timeout is in seconds, may be fractional, and `0` waits indefinitely; when it expires the reply is null. Since the element moves atomically into the destination, a worker that crashes after taking an item leaves it visible in the processing list, where it can be recovered.

[`BLMOVE`](/docs/redis/commands/list/blmove) does the same thing and additionally lets you choose which end of each list to use.

## Syntax

```redis theme={"system"}
BRPOPLPUSH <source> <destination> <timeout>
```

## Arguments

| Argument        | Required | Repeatable | Description                                |
| --------------- | -------- | ---------- | ------------------------------------------ |
| `<source>`      | Yes      | No         | Redis key used as source.                  |
| `<destination>` | Yes      | No         | Redis key used as destination.             |
| `<timeout>`     | Yes      | No         | Seconds to block; `0` blocks indefinitely. |

## Important points

* A blocking form holds the request until data arrives or its timeout expires. Set the client/network timeout longer than the command timeout.

## Response

The reply reports the result of the operation. Error replies have the same shape in RESP2 and RESP3 and are surfaced as exceptions by the SDKs below.

| Protocol | Reply                                         |
| -------- | --------------------------------------------- |
| RESP2    | Bulk string or Null bulk string or null array |
| RESP3    | Bulk string or Null                           |

<Note>
  Client libraries often decode bulk strings, maps, sets, and numeric strings into language-native values. The table describes the Redis wire reply.
</Note>

## Examples

TCP examples use the TLS `REDIS_URL` from the Upstash console. REST examples use `UPSTASH_REDIS_REST_URL` and `UPSTASH_REDIS_REST_TOKEN`.

<AccordionGroup>
  <Accordion title="Redis CLI" icon="terminal">
    ```bash theme={"system"}
    BRPOPLPUSH source-key destination-key 1.5
    ```
  </Accordion>

  <Accordion title="@upstash/redis" icon="node-js" iconType="brands">
    <Note>
      This command is not supported yet in `@upstash/redis`.
    </Note>
  </Accordion>

  <Accordion title="upstash_redis" icon="python" iconType="brands">
    <Note>
      This command is not supported yet in `upstash_redis`.
    </Note>
  </Accordion>

  <Accordion title="ioredis" icon="node-js" iconType="brands">
    ```ts theme={"system"}
    import Redis from "ioredis";

    const redis = new Redis(process.env.REDIS_URL!);
    const result = await redis.brpoplpush("source-key", "destination-key", "1.5");
    console.log(result);
    ```
  </Accordion>

  <Accordion title="node-redis" icon="node-js" iconType="brands">
    ```ts theme={"system"}
    import { createClient } from "redis";

    const client = await createClient({ url: process.env.REDIS_URL })
      .on("error", console.error)
      .connect();
    const result = await client.brPopLPush("source-key", "destination-key", 1.5);
    console.log(result);
    ```
  </Accordion>

  <Accordion title="redis-py" icon="python" iconType="brands">
    ```python theme={"system"}
    import os
    import redis

    client = redis.from_url(os.environ["REDIS_URL"])
    result = client.brpoplpush("source-key", "destination-key", timeout=1.5)
    print(result)
    ```
  </Accordion>

  <Accordion title="go-redis" icon="golang" iconType="brands">
    ```go theme={"system"}
    package main

    import (
        "context"
        "fmt"
        "os"
        "time"

        "github.com/redis/go-redis/v9"
    )

    func main() {
        opts, err := redis.ParseURL(os.Getenv("REDIS_URL"))
        if err != nil {
            panic(err)
        }
        client := redis.NewClient(opts)
        result, err := client.BRPopLPush(context.Background(), "source-key", "destination-key", 1500*time.Millisecond).Result()
        if err != nil {
            panic(err)
        }
        fmt.Println(result)
    }
    ```
  </Accordion>

  <Accordion title="jedis" icon="java" iconType="brands">
    ```java theme={"system"}
    import java.net.URI;

    import redis.clients.jedis.Jedis;

    try (Jedis jedis = new Jedis(new URI(System.getenv("REDIS_URL")))) {
      Object result = jedis.brpoplpush("source-key", "destination-key", 1);
      System.out.println(result);
    }
    ```
  </Accordion>

  <Accordion title="redis-rs" icon="rust" iconType="brands">
    ```rust theme={"system"}
    use redis::TypedCommands;

    fn main() -> redis::RedisResult<()> {
        let url = std::env::var("REDIS_URL").expect("REDIS_URL is not set");
        let client = redis::Client::open(url)?;
        let mut connection = client.get_connection()?;

        let result = connection.brpoplpush("source-key", "destination-key", 1.5)?;
        println!("{result:?}");
        Ok(())
    }
    ```
  </Accordion>
</AccordionGroup>


## Related topics

- [REST API](/docs/redis/features/restapi.md)
- [RPOPLPUSH](/docs/redis/commands/list/rpoplpush.md)