# CLIENT SETINFO

> Set client connection attributes.

Use `CLIENT SETINFO` to attach library identification to the current connection.

`LIB-NAME` records the name of the client library and `LIB-VER` its version. Both values then appear in [`CLIENT INFO`](/redis/commands/connection/client-info) and [`CLIENT LIST`](/redis/commands/connection/client-list) output, which makes it possible to tell which application or SDK version owns a connection. Most client libraries send this during the handshake, so applications rarely call it themselves.

## Syntax

```redis
CLIENT SETINFO <LIB-NAME | LIB-VER> <value>
```

## Arguments

| Argument | Required | Repeatable | Description |
| --- | --- | --- | --- |
| `LIB-NAME \| LIB-VER` | Yes | No | Attribute to update: the client library name or version. |
| `value` | Yes | No | Value to store for the selected client attribute. |

## Important points

- This is a connection-oriented command and is available over native Redis TCP, not the stateless REST endpoint.
- This command can expose administrative information or make a broad destructive change. Restrict it to trusted code paths.

## 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
CLIENT SETINFO LIB-NAME my-client
```

</Accordion>

<Accordion title="ioredis" icon="node-js" iconType="brands">

```ts
import Redis from "ioredis";

const redis = new Redis(process.env.REDIS_URL!);
const result = await redis.call("CLIENT", "SETINFO", "LIB-NAME", "my-client");
console.log(result);
```

</Accordion>

<Accordion title="node-redis" icon="node-js" iconType="brands">

```ts
import { createClient } from "redis";

const client = await createClient({ url: process.env.REDIS_URL })
  .on("error", console.error)
  .connect();
const result = await client.sendCommand(["CLIENT", "SETINFO", "LIB-NAME", "my-client"]);
console.log(result);
```

</Accordion>

<Accordion title="redis-py" icon="python" iconType="brands">

```python
import os
import redis

client = redis.from_url(os.environ["REDIS_URL"])
result = client.client_setinfo("LIB-NAME", "my-client")
print(result)
```

</Accordion>

<Accordion title="go-redis" icon="golang" iconType="brands">

```go
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(), "CLIENT", "SETINFO", "LIB-NAME", "my-client").Result()
    if err != nil {
        panic(err)
    }
    fmt.Println(result)
}
```

</Accordion>

<Accordion title="jedis" icon="java" iconType="brands">

```java
import java.net.URI;

import redis.clients.jedis.Jedis;

try (Jedis jedis = new Jedis(new URI(System.getenv("REDIS_URL")))) {
  Object result = jedis.clientSetInfo(redis.clients.jedis.args.ClientAttributeOption.LIB_NAME, "my-client");
  System.out.println(result);
}
```

</Accordion>

<Accordion title="redis-rs" icon="rust" iconType="brands">

```rust
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("CLIENT");
    command.arg("SETINFO");
    command.arg("LIB-NAME");
    command.arg("my-client");
    let result: redis::Value = command.query(&mut connection)?;
    println!("{result:?}");
    Ok(())
}
```

</Accordion>

</AccordionGroup>