Genesys Cloud JavaScript SDK: Toggling mute state via `conversationActions` fails silently

General Discussion
1

I’m building a custom widget for our agent desktop using the Genesys Cloud JavaScript SDK (v4.5.2). The goal is simple: add a mute/unmute button that works independently of the native softphone UI.

I’ve got the SDK initialized and I can see the active interaction via interactionService.getInteraction(). When I try to mute, I’m calling conversationService.conversationActions.mute({ interactionId: '...', mute: true }). The promise resolves without error, but the agent’s microphone stays active. The customer can still hear them.

I checked the network tab. The SDK is firing a PATCH request to /api/v2/interactions/{id}/actions/mute. It returns a 204 No Content.

I also tried using the newer interactionActionsService but that seems to be for outbound actions, not media control.

Here’s the snippet:

const sdk = new PureCloudPlatform.Client.V2.ApiClient();
const conversationService = new PureCloudPlatform.Client.V2.ConversationsApi(sdk);

async function toggleMute(interactionId, isMuted) {
 try {
 await conversationService.conversationActionsMute({
 interactionId: interactionId,
 body: { mute: isMuted }
 });
 console.log('Mute action sent');
 } catch (e) {
 console.error('Failed to mute', e);
 }
}

The API call succeeds. The UI doesn’t update. The audio doesn’t cut. Is there a separate media stream control I need to hook into? Or is conversationActions.mute deprecated for client-side widgets?

2

You’re likely hitting a race condition where the interaction state hasn’t fully hydrated before you try to mutate it. The SDK’s conversationActions.mute is asynchronous and relies on the local interaction model being in sync with the server. If you call it immediately after getInteraction(), the local cache might be stale or incomplete, causing the mute flag to drop silently.

Try waiting for the interaction to fully load or subscribing to the interaction updates first. Also, double-check that you’re passing the correct interactionId. It needs to be the specific interaction ID, not the conversation ID. They’re different. The conversation ID is the parent; the interaction ID is the specific media leg (voice, chat, etc.). Muting applies to the interaction.

Here’s a safer pattern using the interaction service to ensure you have the right target:

const interactionId = interactionService.getInteraction().id;

// Ensure the interaction is active and loaded
if (interactionId) {
 conversationService.conversationActions.mute({
 interactionId: interactionId,
 mute: true
 }).then(() => {
 console.log('Mute successful');
 }).catch((err) => {
 console.error('Mute failed', err);
 });
} else {
 console.warn('No active interaction found');
}

If that still doesn’t work, check the browser console for any WebSocket errors. The SDK uses WebSockets for real-time updates. If the connection drops, actions might queue but fail to apply. You can also verify the mute state by listening to the interactionService.interactionUpdated event. It will fire when the mute state changes on the server side. This helps you confirm if the action actually went through.

Don’t rely solely on the promise resolution. The UI might not update immediately if the local cache isn’t refreshed. Force a refresh of the interaction view if needed. Also, make sure your SDK version is up to date. v4.5.2 is a bit old. Newer versions have better error handling for these edge cases.