***

id: 1f7b2f84-4dc1-4456-bd12-8d717d256b13
title: updateMeta
slug: /node/reference/video/room-session/update-meta
description: updateMeta method for the RoomSession class.
max-toc-depth: 3
----------------

[link-4]: /docs/server-sdk/v3/node/reference/video/room-session/set-meta

### updateMeta

* **updateMeta**(`meta`): `Promise<void>`

Updates the RoomSession metadata by only setting the specified fields. This is
different from [setMeta][link-4], which replaces the whole metadata object.

#### Parameters

| Name   | Type                        | Description                 |
| :----- | :-------------------------- | :-------------------------- |
| `meta` | `Record``<string, unknown>` | The update to the metadata. |

#### Returns

`Promise<void>`

#### Example

```js
roomSession.on("room.updated", (e) => {
  // We can set an event listener to log changes to the metadata.
  console.log(e.room.meta);
});

await roomSession.setMeta({ foo: "bar", baz: true });
// The logger will now print `{ foo: "bar", baz: true }`

await roomSession.updateMeta({ baz: false, t: 10 });
// The logger will now print `{ foo: "bar", baz: false, t: 10 }`
```