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st-livekit-client

v1.10.3

Published

JavaScript/TypeScript client SDK for LiveKit

Downloads

1

Readme

JavaScript/TypeScript client SDK for LiveKit

livekit-client is the official client SDK for LiveKit. With it, you can add real time video and audio to your web apps.

Docs

Docs and guides at https://docs.livekit.io

Installation

Yarn

yarn add livekit-client

NPM

npm install livekit-client --save

Usage

Examples below are in TypeScript, if using JS/CommonJS imports replace import with:

const LiveKit = require('livekit-client');

LiveKit.connect(...);

Connecting to a room, publish video & audio

import {
  connect,
  RoomEvent,
  RemoteParticipant,
  RemoteTrackPublication,
  RemoteTrack,
  Participant,
} from 'livekit-client';

connect('ws://localhost:7800', token, {
  audio: true,
  video: true,
}).then((room) => {
  console.log('connected to room', room.name);
  console.log('participants in room:', room.participants.size);

  room
    .on(RoomEvent.TrackSubscribed, handleTrackSubscribed)
    .on(RoomEvent.TrackUnsubscribed, handleTrackUnsubscribed)
    .on(RoomEvent.ActiveSpeakersChanged, handleActiveSpeakerChange)
    .on(RoomEvent.Disconnected, handleDisconnect);
});

function handleTrackSubscribed(
  track: RemoteTrack,
  publication: RemoteTrackPublication,
  participant: RemoteParticipant
) {
  if (track.kind === Track.Kind.Video || track.kind === Track.Kind.Audio) {
    // attach it to a new HTMLVideoElement or HTMLAudioElement
    const element = track.attach();
    parentElement.appendChild(element);
  }
}

function handleTrackUnsubscribed(
  track: RemoteTrack,
  publication: RemoteTrackPublication,
  participant: RemoteParticipant
) {
  // remove tracks from all attached elements
  track.detach();
}

function handleActiveSpeakerChange(speakers: Participant[]) {
  // show UI indicators when participant is speaking
}

function handleDisconnect() {
  console.log('disconnected from room');
}

In order to connect to a room, you need to first create an access token.

See access token docs for details

Manually publish, mute, unpublish

import { createLocalVideoTrack } from 'livekit-client';

const videoTrack = await createLocalVideoTrack();

const publication = await room.localParticipant.publishTrack(videoTrack, {
  name: 'mytrack',
  simulcast: true,
});

videoTrack.mute();

room.localParticipant.unpublishTrack(videoTrack);

Configuring logging

This library uses (loglevel)[] for its internal logs. You can change the effective log level with the logLevel field in ConnectOptions.

Examples

SDK Sample

example/sample.ts contains a demo webapp that uses the SDK. Run it with yarn sample

Browser Support

| Browser | Desktop OS | Mobile OS | | --------------- | --------------------- | --------- | | Chrome | Windows, macOS, Linux | Android | | Firefox | Windows, macOS, Linux | Android | | Safari | macOS | iOS | | Edge (Chromium) | Windows, macOS |