migration-v4-to-v5

name	migration-v4-to-v5
description	Migrate a web project from CometChat Calls SDK v4 to v5. Use when upgrading calls SDK version, replacing deprecated v4 APIs, migrating CallSettings to SessionSettings, replacing OngoingCallListener with addEventListener, migrating startSession to joinSession. Triggers on "migrate calls sdk", "upgrade v4 to v5", "replace deprecated calls api", "CallSettings to SessionSettings", "migration guide".
inclusion	manual

CometChat Calls SDK — Migrate v4 to v5 (JavaScript)

Overview

Calls SDK v5 is a drop-in replacement for v4. All v4 APIs are preserved as deprecated methods that internally delegate to v5 implementations. You can update the package version and existing code will compile and run without changes. This skill guides migration to the new v5 APIs.

Migration Strategy

1. Update the package version
2. Add CometChatCalls.login() after authentication
3. Replace CallSettings / CallSettingsBuilder → SessionSettings object
4. Replace startSession() → joinSession()
5. Replace OngoingCallListener → addEventListener()
6. Replace static action methods (same names, just verify)
7. Clean up removed APIs (switchToVideoCall, setCustomCSS, MainVideoContainerSetting)

Step 1 — Update Package

npm install @cometchat/calls-sdk-javascript@latest

Step 2 — Add Authentication

v4 required passing authToken to generateToken(). v5 introduces CometChatCalls.login() which caches the token.

v4 (remove this pattern)

const { token } = await CometChatCalls.generateToken(sessionId, authToken);

v5 (replace with)

// Call once after your app authenticates the user
await CometChatCalls.login(uid, authKey);
// OR
await CometChatCalls.loginWithAuthToken(authToken);

// Now generateToken uses the cached auth token
const { token } = await CometChatCalls.generateToken(sessionId);

Step 3 — Replace Session Settings

CallSettingsBuilder → plain SessionSettings object. Note the inverted boolean logic on visibility methods.

v4 (remove this pattern)

const callSettings = new CometChatCalls.CallSettingsBuilder()
  .enableDefaultLayout(true)
  .setIsAudioOnlyCall(true)
  .showEndCallButton(true)
  .showMuteAudioButton(true)
  .showPauseVideoButton(true)
  .showScreenShareButton(true)
  .showRecordingButton(true)
  .startWithAudioMuted(false)
  .startWithVideoMuted(false)
  .setMode('DEFAULT')
  .startRecordingOnCallStart(false)
  .setCallListener(new CometChatCalls.OngoingCallListener({ ... }))
  .build();

v5 (replace with)

const sessionSettings: SessionSettings = {
  sessionType: 'VOICE',
  layout: 'SIDEBAR',
  hideControlPanel: false,
  hideLeaveSessionButton: false,
  hideToggleAudioButton: false,
  hideToggleVideoButton: false,
  hideScreenSharingButton: false,
  hideRecordingButton: false,
  startAudioMuted: false,
  startVideoPaused: false,
  autoStartRecording: false,
};

Builder Method Mapping

v4 Method	v5 SessionSettings Property	Notes
setIsAudioOnlyCall(true)	sessionType: 'VOICE'	Use 'VIDEO' for video
enableDefaultLayout(bool)	hideControlPanel: !bool	Inverted logic
showEndCallButton(bool)	hideLeaveSessionButton: !bool	Inverted logic
showMuteAudioButton(bool)	hideToggleAudioButton: !bool	Inverted logic
showPauseVideoButton(bool)	hideToggleVideoButton: !bool	Inverted logic
showScreenShareButton(bool)	hideScreenSharingButton: !bool	Inverted logic
showRecordingButton(bool)	hideRecordingButton: !bool	Inverted logic
startWithAudioMuted(bool)	startAudioMuted: bool	Same logic
startWithVideoMuted(bool)	startVideoPaused: bool	Same logic
setMode('DEFAULT')	layout: 'SIDEBAR'	'DEFAULT' maps to 'SIDEBAR'
setMode('SPOTLIGHT')	layout: 'SPOTLIGHT'	Same
startRecordingOnCallStart(bool)	autoStartRecording: bool	Same logic
showVirtualBackgroundSetting(bool)	hideVirtualBackgroundButton: !bool	Inverted logic
setCustomCSS(css)	Removed	Delete usage
setVirtualBackground(vb)	Removed

Step 4 — Replace Join Session

startSession() → joinSession().

v4 (remove this pattern)

const { token } = await CometChatCalls.generateToken(sessionId, authToken);
CometChatCalls.startSession(token, callSettings, container);

v5 (replace with)

const { token } = await CometChatCalls.generateToken(sessionId);
const result = await CometChatCalls.joinSession(token, sessionSettings, container);
if (result.error) {
  console.error('Join failed:', result.error);
}

Key differences:

• Returns { data, error } instead of relying on listener callbacks
• No need to pass authToken to generateToken() (handled by login())
• Settings is a plain object, not a builder result

Step 5 — Replace Event Listeners

Replace OngoingCallListener with individual addEventListener() calls.

v4 (remove this pattern)

const callSettings = new CometChatCalls.CallSettingsBuilder()
  .setCallListener(new CometChatCalls.OngoingCallListener({
    onCallEnded: () => { },
    onCallEndButtonPressed: () => { },
    onUserJoined: (user) => { },
    onUserLeft: (user) => { },
    onUserListUpdated: (userList) => { },
    onRecordingStarted: (event) => { },
    onRecordingStopped: () => { },
    onScreenShareStarted: () => { },
    onScreenShareStopped: () => { },
    onUserMuted: (event) => { },
    onError: (error) => { },
  }))
  .build();

v5 (replace with)

const controller = new AbortController();
const opts = { signal: controller.signal };

CometChatCalls.addEventListener('onSessionLeft', () => { }, opts);
CometChatCalls.addEventListener('onLeaveSessionButtonClicked', () => { }, opts);
CometChatCalls.addEventListener('onParticipantJoined', (p) => { }, opts);
CometChatCalls.addEventListener('onParticipantLeft', (p) => { }, opts);
CometChatCalls.addEventListener('onParticipantListChanged', (list) => { }, opts);
CometChatCalls.addEventListener('onRecordingStarted', () => { }, opts);
CometChatCalls.addEventListener('onRecordingStopped', () => { }, opts);
CometChatCalls.addEventListener('onScreenShareStarted', () => { }, opts);
CometChatCalls.addEventListener('onScreenShareStopped', () => { }, opts);
CometChatCalls.addEventListener(,  { }, opts);


controller.();

Event Mapping

v4 Event	v5 Event
onCallEnded	onSessionLeft
onCallEndButtonPressed	onLeaveSessionButtonClicked
onSessionTimeout	onSessionTimedOut
onUserJoined(user)	onParticipantJoined(participant)
onUserLeft(user)	onParticipantLeft(participant)
onUserListUpdated(list)	onParticipantListChanged(participants)
onRecordingStarted(event)	onRecordingStarted()
onRecordingStopped()	onRecordingStopped()
onScreenShareStarted()	onScreenShareStarted()
onScreenShareStopped()	onScreenShareStopped()
onUserMuted(event)	onParticipantAudioMuted(participant)
onCallSwitchedToVideo(event)	Removed — delete handler
onError(error)	Check result.error from joinSession()

Step 6 — Update Static Methods

Most action methods keep the same names but are now directly on CometChatCalls:

v4 Method	v5 Method	Notes
CometChatCalls.endSession()	CometChatCalls.leaveSession()	Renamed
CometChatCalls.startScreenShare()	CometChatCalls.startScreenSharing()	Renamed
CometChatCalls.stopScreenShare()	CometChatCalls.stopScreenSharing()	Renamed
CometChatCalls.setMode(mode)	CometChatCalls.setLayout(layout)	Renamed
CometChatCalls.switchToVideoCall()	Removed — delete usage
CometChatCalls.openVirtualBackground()	CometChatCalls.showVirtualBackgroundDialog()	Renamed
CometChatCalls.closeVirtualBackground()	CometChatCalls.hideVirtualBackgroundDialog()	Renamed
CometChatCalls.setBackgroundBlur(level)	CometChatCalls.setVirtualBackgroundBlurLevel(level)	Renamed
CometChatCalls.setBackgroundImage(url)	CometChatCalls.setVirtualBackgroundImage(url)	Renamed

Step 7 — Clean Up Removed APIs

Delete usage of these removed/deprecated features:

• switchToVideoCall() — no replacement
• setCustomCSS() — no replacement
• MainVideoContainerSetting — no replacement
• setVirtualBackground() on builder — use runtime methods instead
• getCallDetails() — use CallLogRequestBuilder instead

Gotchas

• v5 is a drop-in replacement — you can update the package and migrate incrementally; v4 APIs still work but are deprecated
• Boolean logic is inverted for visibility: showX(true) → hideX: false
• 'DEFAULT' mode maps to 'SIDEBAR' layout in v5
• OngoingCallListener is replaced by individual addEventListener() calls with AbortSignal for cleanup
• generateToken() no longer requires authToken parameter — it's cached from login()
• onCallSwitchedToVideo and switchToVideoCall() are removed with no replacement
• The User object in v4 events is replaced by a simpler Participant object ({ pid, name, uid, avatar })