***

id: d1d1280b-091f-4d90-b88f-af659ca36488
title: updateMemberMeta
slug: /js/reference/video/room-session/update-member-meta
description: updateMemberMeta method for the RoomSession class.
max-toc-depth: 3
----------------

### updateMemberMeta

* **updateMemberMeta**(`params`): `Promise<void>`

Updates a member's metadata in only the specified fields. This is different from
[setMemberMeta](#setmembermeta), which replaces the whole metadata object.

#### Parameters

<ParamField path="params" type="object">
  Object containing the parameters of the method.
</ParamField>

<Indent>
  <ParamField path="memberId" type="string" required={false}>
    Id of the member to affect. If omitted, affects the current member.
  </ParamField>

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

#### Returns

`Promise<void>`

#### Permissions

* `room.set_meta`

You need to specify the permissions when [creating the Video Room Token](/docs/apis/video/room-tokens/create-room-token) on the server side.

#### Example

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

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

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