> ## 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.

# MULTI

> Start a transaction.

Use `MULTI` to start a transaction.

Commands sent afterwards are not executed but queued, each answered with `QUEUED`, until [`EXEC`](/docs/redis/commands/transactions/exec) runs them all in order with nothing else in between, or [`DISCARD`](/docs/redis/commands/transactions/discard) throws them away.

A Redis transaction is atomic in the sense that no other client sees a partial result, but it is not a rollback mechanism: a command that fails at queue time, such as one with a syntax error, aborts the whole transaction, while a command that fails at execution time, such as one applied to the wrong type, leaves the commands around it applied. Combine it with [`WATCH`](/docs/redis/commands/transactions/watch) when the transaction depends on values you read beforehand.

The raw command is TCP-only. Over HTTP, use the transaction or pipeline API of an Upstash SDK instead of sending this command directly.

## Syntax

```redis theme={"system"}
MULTI
```

## Arguments

This command takes no arguments.

## Important points

* The raw command is TCP-only. For HTTP, use an Upstash SDK transaction API rather than sending this command directly.

## 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    | Simple string `OK` |
| RESP3    | Simple string `OK` |

<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"}
    MULTI
    SET balance 100
    EXEC
    ```
  </Accordion>

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

    const client = new Redis(process.env.REDIS_URL!);
    const result = await client.multi().set("balance", "100").exec();
    ```
  </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 }).connect();
    const result = await client.multi().set("balance", "100").exec();
    ```
  </Accordion>

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

    client = redis.from_url(os.environ["REDIS_URL"])
    with client.pipeline(transaction=True) as pipe:
        result = pipe.set("balance", "100").execute()
    ```
  </Accordion>

  <Accordion title="go-redis" icon="golang" iconType="brands">
    ```go theme={"system"}
    ctx := context.Background()
    opts, err := redis.ParseURL(os.Getenv("REDIS_URL"))
    if err != nil { panic(err) }
    client := redis.NewClient(opts)

    pipe := client.TxPipeline()
    pipe.Set(ctx, "balance", "100", 0)
    result, err := pipe.Exec(ctx)
    if err != nil { panic(err) }
    ```
  </Accordion>

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

    try (Jedis jedis = new Jedis(new URI(System.getenv("REDIS_URL")));
         Transaction transaction = jedis.multi()) {
      transaction.set("balance", "100");
      Object result = transaction.exec();
    }
    ```
  </Accordion>

  <Accordion title="redis-rs" icon="rust" iconType="brands">
    ```rust theme={"system"}
    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()?;

        redis::pipe()
            .atomic()
            .set("balance", "100")
            .ignore()
            .query::<()>(&mut connection)?;
        Ok(())
    }
    ```
  </Accordion>
</AccordionGroup>


## Related topics

- [Ratelimiting Algorithms](/docs/redis/sdks/ratelimit-ts/algorithms.md)
- [Prod Pack & Enterprise](/docs/redis/overall/enterprise.md)
- [Multithreaded Web Scraping with Redis Caching](/docs/redis/tutorials/python_multithreading.md)
- [Features](/docs/redis/sdks/ratelimit-ts/features.md)
- [Smart Matching](/docs/redis/search/query-operators/field-operators/smart-matching.md)