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Adds an event listener for a specific event. See the Event Reference for all available events.

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Signature

client.on<T extends EventName>(event: T, callback: EventCallback<T>): this;

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Parameters

ParameterTypeDescriptionRequired
eventEventNameThe name of the event to listen for.Yes
callbackEventCallback<T>The callback function to invoke when the event is emitted.Yes

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Returns

this — the client instance, allowing method chaining.

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Example

client.on('answered', (session) => {
  console.log('Call answered:', session.id);
});

client.on('error', (error) => {
  console.error('SDK error:', error.message);
});

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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);

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More Information