> ## Documentation Index
> Fetch the complete documentation index at: https://upstash-redis-1-18.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# MSETEX

> Set multiple keys with one expiration.

Use `MSETEX` to set several keys and give them all the same expiration in one atomic step.

[`MSET`](/redis/commands/string/mset) can write a group of keys together but leaves them without a lifetime, so attaching one has to be a second round trip during which the keys already exist unbounded. `MSETEX` closes that window: the values and the expiration are applied together, which is what you want for a set of keys that are only meaningful as a group, such as the parts of one cached response.

`NX` writes only when none of the keys exists and `XX` only when all of them do. The check covers the whole group, so a single key breaking the condition leaves everything unwritten and the reply is `0`. `EX`, `PX`, `EXAT`, and `PXAT` set the lifetime as a duration or as an absolute deadline, and `KEEPTTL` keeps whatever lifetime each key already had. Without any of these the keys are written without an expiration, discarding any they had, exactly as [`MSET`](/redis/commands/string/mset) does.

`<numkeys>` says how many key-value pairs follow; anything after them is read as options.

## Syntax

```redis theme={null}
MSETEX <numkeys> <key> <value> [<key> <value> ...]
  [NX | XX]
  [EX <seconds> | PX <milliseconds> | EXAT <unix-time-seconds> |
    PXAT <unix-time-milliseconds> | KEEPTTL]
```

## Arguments

| Argument                                                                                                      | Required | Repeatable | Description                                                                                                                                                                                                                                       |
| ------------------------------------------------------------------------------------------------------------- | -------- | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `<numkeys>`                                                                                                   | Yes      | No         | Number of key-value pairs that follow. Must be at least `1`.                                                                                                                                                                                      |
| `<key> <value>`                                                                                               | Yes      | Yes        | Key and the value to store in it. Repeat `<numkeys>` times.                                                                                                                                                                                       |
| `(NX \| XX)`                                                                                                  | No       | No         | Choose one form: `NX` (write only when none of the keys exists); `XX` (write only when all of them exist).                                                                                                                                        |
| `(EX <seconds> \| PX <milliseconds> \| EXAT <unix-time-seconds> \| PXAT <unix-time-milliseconds> \| KEEPTTL)` | No       | No         | Choose one form: `EX` (set a lifetime in seconds); `PX` (set a lifetime in milliseconds); `EXAT` (expire at a Unix timestamp in seconds); `PXAT` (expire at a Unix timestamp in milliseconds); `KEEPTTL` (preserve each key's existing lifetime). |

## Important points

* `NX` and `XX` are mutually exclusive, and at most one expiration form may be given.
* The condition is evaluated over the whole group: with `NX` a single existing key stops the write, and with `XX` a single missing key does.
* Without an expiration option the keys are written without a lifetime, discarding any they had. `KEEPTTL` preserves each key's own current lifetime.
* `EX` and `PX` must be greater than `0`. An `EXAT` or `PXAT` deadline in the past deletes the keys instead of writing them, and the reply is still `1`.
* The options may be given in any order after the key-value pairs.

## 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    | Integer: `1` if the keys were set, `0` if a condition prevented the write |
| RESP3    | Integer: `1` if the keys were set, `0` if a condition prevented the write |

<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={null}
    MSETEX 2 key1 value1 key2 value2 EX 60
    ```
  </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={null}
    import Redis from "ioredis";

    const redis = new Redis(process.env.REDIS_URL!);
    const result = await redis.msetex(2, "key1", "value1", "key2", "value2", "EX", 60);
    console.log(result);
    ```
  </Accordion>

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

    const client = await createClient({ url: process.env.REDIS_URL })
      .on("error", console.error)
      .connect();
    const result = await client.mSetEx(
      { key1: "value1", key2: "value2" },
      { expiration: { type: "EX", value: 60 } },
    );
    console.log(result);
    ```
  </Accordion>

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

    client = redis.from_url(os.environ["REDIS_URL"])
    result = client.msetex(mapping={"key1": "value1", "key2": "value2"}, ex=60)
    print(result)
    ```
  </Accordion>

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

    import (
        "context"
        "fmt"
        "os"

        "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)
        args := redis.MSetEXArgs{Expiration: &redis.ExpirationOption{Mode: redis.EX, Value: 60}}
        result, err := client.MSetEX(context.Background(), args, "key1", "value1", "key2", "value2").Result()
        if err != nil {
            panic(err)
        }
        fmt.Println(result)
    }
    ```
  </Accordion>

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

    import redis.clients.jedis.Jedis;
    import redis.clients.jedis.params.MSetExParams;

    try (Jedis jedis = new Jedis(new URI(System.getenv("REDIS_URL")))) {
      boolean result = jedis.msetex(new MSetExParams().ex(60), "key1", "value1", "key2", "value2");
      System.out.println(result);
    }
    ```
  </Accordion>

  <Accordion title="redis-rs" icon="rust" iconType="brands">
    ```rust theme={null}
    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 options = redis::MSetOptions::default().with_expiration(redis::SetExpiry::EX(60));
        let result = connection.mset_ex(&[("key1", "value1"), ("key2", "value2")], options)?;
        println!("{result:?}");
        Ok(())
    }
    ```
  </Accordion>
</AccordionGroup>