In order to use the features of the Calls SDK in your apps, user authentication with Sendbird server must be initiated through the
SendBirdCall.authenticate() method. To receive calls when an app is in the background or closed, a user’s device registration token must be registered to the server. A device registration token can be registered by passing it as an argument to a parameter in the
authenticate() method when authenticating a user, or by using the
SendBirdCall.registerPushToken() method after a user’s authentication has been completed.
Note: Even if your organization already uses Sendbird Chat, a separate user authentication is needed for Sendbird Calls.
Initialize the Calls SDK with APP_ID
As shown below, the
SendBirdCall instance must be initialized when a client app is launched. Initialization is done by using the
APP_ID of your Sendbird application in the Dashboard. If the instance is initialized with a different
APP_ID, all existing call-related data in a client app will be cleared and the
SendBirdCall instance will be initialized again with the new
Authenticate to Sendbird server
In order to use the interfaces and methods provided in the
SendBirdCall instance, a user must be connected to Sendbird server by authentication. Without authentication, calling the methods of the Calls SDK will not work in a user’s client app. This means that if a user performs actions such as accepting an incoming call before authentication, the user will receive errors from Sendbird server.
Using an access token
Through our Chat Platform API, you can create a user using an access token. You can also issue an access token for an existing user.
Using a session token
You can also use a session token instead of an access token to authenticate a user. Session tokens are a more secure option because they expire after a certain period whereas access tokens don't. See Chat Platform API guides for further explanation about the difference between access token and session token, how to issue a session token, and how to revoke all session tokens.
WebSocket connections with Sendbird server are made only when there is an ongoing direct call or group call, therefore authenticating won't create unnecessary
WebSocket connections. Also, unless you have integrated push notifications to your application, new incoming calls won't be delivered through
WebSocket. The Calls SDK versions prior to 1.6.0 supported making calls with
WebSocket connections under certain circumstances, however it is now deprecated.
Note: Sendbird Calls is charged by minutes which starts as soon as the call is connected. It is recommended that you authenticate users for the Calls SDK at your earliest convenience.
Deauthenticate from Sendbird server
Deauthenticate a user from Sendbird server using the
SendBirdCall.deauthenticate() method. It will clear all current direct calls, session keys, and user information from a user’s client app. This can also be considered as logging out from the server.