Thanks — great question. Regarding updating room metadata from a React client: • You cannot update room metadata directly from client SDKs. Room metadata is a server-side only operation. • Client SDKs (including React) can read the room metadata and will receive real-time updates via the

room_metadata_changed

event when the server updates it. Recommended pattern to update metadata from your React app: 1. From your React app, send the new metadata to your backend (for example, via a POST to an endpoint like

/rooms/:roomId/metadata

). 2. On the backend, call the server SDK’s

UpdateRoomMetadata

API (Node, Python, Ruby, etc.) with the new metadata. 3. The server update will trigger a

room_metadata_changed

event that your clients can listen for to refresh UI/state. If you want, tell me: • Which server language you use (Node, Python, Ruby), and I’ll provide a short example of the server endpoint and the call to

UpdateRoomMetadata

. • Or paste the shape of the metadata you want to set, and I can show a concrete request/response flow you can wire into your React app. Sources: server-sdk-ruby | livekit/livekit_composite | DeepWiki | Server-side | livekit/livekit_composite | DeepWiki, with interactive elements