> ## 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.

# SUBSCRIBE

> Subscribe to a channel

## Arguments

<ParamField body="channels" type="string | string[]" required>
  The channel to publish to.
</ParamField>

## Response

<ResponseField type="Subscriber" required>
  A subscriber instance which can subscribe to channels.
</ResponseField>

<RequestExample>
  ```ts Example theme={"system"}
  const subscription = redis.subscribe(["my-channel"]);

  const messages = [];
  subscription.on("message", (data) => {
    messages.push(data.message);
  });
  ```
</RequestExample>


## Related topics

- [REST API](/docs/redis/features/restapi.md)
- [Server-Side Usage](/docs/realtime/features/server-side.md)
- [History](/docs/realtime/features/history.md)
- [Quickstart](/docs/realtime/overall/quickstart.md)
- [Redis® API Compatibility: supported commands, modules, and protocols](/docs/redis/overall/compatibility.md)