Twilio : How to grant access to camera once for all?

I have a meeting app using Twilio Video.

The app has a requirement such that when a user wants to join a room, it’s not immediate. That means : A user sends a request to the app server to join, immediately he will see his local webcam, then he will wait for sometime until the server responds with a token to join the room. It may be 10 or 20 minutes.

The communication between the client and the server is done through WebSockets.

Here is the process :

Step 1:
Client sends a request to the app server to join a room

Step 2:
Request access and show the client local camera as follows :

// Get the track from twilio
const Track = await Twilio.Video.createLocalVideoTrack();

// Add track to HTML        

Step 3:
Client waits for the server to respond (let’s say 10 minutes)

Step 4:
The server responds with the token to join Twilio video room

Step 5:
Client joins room using the token sent by the server as follows

Twilio.Video.connect(Token, { name:RoomName }).then(room => {
    console.log('Successfully joined a Room');

    room.on('participantConnected', participant => {
      console.log('A remote Participant connected ');
  }, error => {
    console.error('Unable to connect to Room');

The process works fine. The problem I’m getting however, is that in Step 5, when the client is trying to join a room, twilio asks him again to grant access to camera.

Basically, even though the access has already been granted, the method Twilio.Video.connect asks again for access.

I was wondering if there is a way to use the authorization previously granted to use the camera and avoid asking for it again if it has already been granted.


Source: JavaSript – Stack Overflow

September 28, 2021
Category : News
Tags: javascript | twilio

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Senior Software Developer

Creator of @LzoMedia I am a backend software developer based in London who likes beautiful code and has an adherence to standards & love's open-source.