Adds an event listener for a specific event. See the Event Reference for all available events.
Signature
client.on<T extends EventName>(event: T, callback: EventCallback<T>): this;
Parameters
| Parameter | Type | Description | Required |
|---|
event | EventName | The name of the event to listen for. | Yes |
callback | EventCallback<T> | The callback function to invoke when the event is emitted. | Yes |
Returns
this ā the client instance, allowing method chaining.
Example
client.on('answered', (session) => {
console.log('Call answered:', session.id);
});
client.on('error', (error) => {
console.error('SDK error:', error.message);
});
Type-Safe Event Handling
import type { WebRTCClientEvents } from '@cognigy/click-to-call-sdk';
const handleAnswered: WebRTCClientEvents['answered'] = (session) => {
console.log('Call answered:', session.id);
};
client.on('answered', handleAnswered);
Last modified on June 2, 2026
