***

id: 76fe3608-7ee0-4715-88ec-743b4995a1ff
title: updateMeta
slug: /node/reference/video/room-session/update-meta
description: updateMeta method for the RoomSession class.
max-toc-depth: 3
----------------

[link-6]: /docs/server-sdk/v4/node/reference/video/room-session/set-meta

[roomsession-41]: /docs/server-sdk/v4/node/reference/video/room-session

### updateMeta

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

Updates the RoomSession metadata by only setting the specified fields. This is
different from [setMeta][link-6], which replaces the whole metadata object.

#### Parameters

<ParamField path="meta" type="Record<string, unknown>" required>
  The update to the metadata.
</ParamField>

#### Returns

`Promise<void>`

#### Example

In this example, we set metadata for a room as soon as it starts and then
update the metadata for that room after 5 seconds. This example assumes that
there is a [`RoomSession`][roomsession-41] already active and
that members are joining the room.

```js
import { SignalWire } from "@signalwire/realtime-api";

// Initialize the SignalWire client
const client = await SignalWire({ project: "ProjectID Here", token: "Token Here" });

// Access video client from the main client
const videoClient = client.video;

// Setup listener for when a room starts
await videoClient.listen({
  onRoomStarted: async (roomSession) => {
    console.log("Room started", roomSession.displayName);

    // Set the room meta
    console.log("Setting room meta");
    await roomSession.setMeta({
      "foo": "bar",
      "roomName": roomSession.displayName
    });

    // Get the room meta
    let roomMeta = await roomSession.getMeta()
    console.log("Room meta", roomMeta);

    // update the room meta after 5 seconds
    setTimeout(async () => {
      console.log("Updating room meta");
      await roomSession.setMeta({
        "foo": "bar",
        "roomName": roomSession.displayName,
        "updated": true
      });
      console.log("Room meta Updated:", await roomSession.getMeta());
    }, 5000);
  },
  onRoomEnded: async (roomSession) => {
    console.log("Room ended", roomSession.displayName);
  }
});
```