> ## 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.

# ACL GENTOKEN

> Generate a REST token that can be used as a SETUSER password.

Use `ACL GENTOKEN` to create the credential you need before you can give an ACL user a password.

[`ACL SETUSER`](/docs/redis/commands/server/acl-setuser) does not accept arbitrary passwords with `>password`: the value must come from `GENTOKEN`. Call it with just a username to have a strong password generated for you, or supply your own password to wrap instead. Either way, the reply is a token string that does two things at once: pass it to `SETUSER` as `>token` to set the user's password, and later use it directly as `UPSTASH_REDIS_REST_TOKEN`, or exchange it (or the password it wraps) for a fresh one with [`ACL RESTTOKEN`](/docs/redis/commands/server/acl-resttoken). `GENTOKEN` is an Upstash extension.

## Syntax

```redis theme={"system"}
ACL GENTOKEN <username> [password]
```

## Arguments

| Argument | Required | Repeatable | Description |
| - | - | - | - |
| `username` | Yes | No | ACL user this token will belong to. The user does not need to exist yet. |
| `password` | No | No | Password to wrap in the token. When omitted, a strong random password is generated instead. |

## Important points

* A supplied `password` is checked for minimum entropy and rejected if too weak.
* This only generates a token; it does not create or modify the user. Pass the result to `ACL SETUSER <username> >token` to actually set it as the user's password.

## 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 |
| RESP3 | Bulk string |

> [!NOTE]
>
> Client libraries often decode bulk strings, maps, sets, and numeric strings into language-native values. The table describes the Redis wire reply.

## Examples

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

> **Redis CLI**
>
> ```bash theme={"system"}
> ACL GENTOKEN app
> ```

> **@upstash/redis**
>
> > [!NOTE]
> >
> > This command is not supported yet in `@upstash/redis`.

> **upstash\_redis**
>
> > [!NOTE]
> >
> > This command is not supported yet in `upstash_redis`.

> **ioredis**
>
> ```ts theme={"system"}
> import Redis from "ioredis";
>
> const redis = new Redis(process.env.REDIS_URL!);
> const result = await redis.acl("GENTOKEN", "app");
> console.log(result);
> ```

> **node-redis**
>
> ```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.sendCommand(["ACL", "GENTOKEN", "app"]);
> console.log(result);
> ```

> **redis-py**
>
> ```python theme={"system"}
> import os
> import redis
>
> client = redis.from_url(os.environ["REDIS_URL"])
> result = client.execute_command("ACL", "GENTOKEN", "app")
> print(result)
> ```

> **go-redis**
>
> ```go theme={"system"}
> 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)
>     result, err := client.Do(context.Background(), "ACL", "GENTOKEN", "app").Result()
>     if err != nil {
>         panic(err)
>     }
>     fmt.Println(result)
> }
> ```

> **jedis**
>
> ```java theme={"system"}
> import java.net.URI;
> import java.nio.charset.StandardCharsets;
> import redis.clients.jedis.Jedis;
> import redis.clients.jedis.commands.ProtocolCommand;
>
> ProtocolCommand command = () -> "ACL".getBytes(StandardCharsets.UTF_8);
> try (Jedis jedis = new Jedis(new URI(System.getenv("REDIS_URL")))) {
>   Object result = jedis.sendCommand(command, "GENTOKEN", "app");
>   System.out.println(result);
> }
> ```

> **redis-rs**
>
> ```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()?;
>
>     let mut command = redis::cmd("ACL");
>     command.arg("GENTOKEN");
>     command.arg("app");
>     let result: redis::Value = command.query(&mut connection)?;
>     println!("{result:?}");
>     Ok(())
> }
> ```


## Related topics

- [ACL RESTTOKEN](/docs/redis/commands/server/acl-resttoken.md)
- [ACL GENPASS](/docs/redis/commands/server/acl-genpass.md)
- [ACL SETUSER](/docs/redis/commands/server/acl-setuser.md)
- [ACL SAVE](/docs/redis/commands/server/acl-save.md)
- [ACL LOAD](/docs/redis/commands/server/acl-load.md)


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