***

id: e75e30ba-2956-4676-87d7-ce1a1a0a5c5a
title: unlock
slug: /node/reference/video/room-session/unlock
description: unlock method for the RoomSession class.
max-toc-depth: 3
----------------

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

### unlock

* **unlock**(): `Promise<void>`

Unlocks the room if it had been previously locked. This allows new participants to join the room.

#### Returns

`Promise<void>`

#### Example

In this example, we lock a room when it starts and then unlock it after 20 seconds.
This example assumes that there is a [`RoomSession`][roomsession-41] already active and users are joining it.

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

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

const videoClient = client.video;

// Setup listener for when a room starts
await videoClient.listen({
  onRoomStarted: async (roomsession) => {
      // Lock the room
      console.log('Locking room');
      await roomsession.lock();

      // unlock the room after 20 seconds

      setTimeout(async () => {
        console.log('Unlocking room');
        await roomsession.unlock();
      }, 20000);

      roomsession.listen({
        onMemberJoined: async (member) => {
          console.log('Member joined', member.name);
        },
        onMemberLeft: async (member) => {
          console.log('Member left', member.name);
        },
      })
    }
  })
```