Guest API typing indicator not triggering agent UI state

NICE CXone API & Integrations
1

Posting to POST /api/v2/conversations/webmessaging/participants/{participantId}/typing with a valid token sets the state to active, but the agent UI never shows the typing dots. The response is a 200 OK, and the JSON payload is just {“isActive”: true}. Is there a specific delay or event listener I’m missing in the Node.js integration to force the UI update?

2

Cause: The typing indicator isn’t a standalone event that persists. It’s a transient signal. If you send it once and stop, the agent UI might not register it, or it might timeout before the agent sees it. The Genesys Web Messaging SDK expects a continuous stream of these events to keep the dots animating. You’re probably sending a single HTTP request and expecting the UI to hold state. It doesn’t work like that. The client needs to keep pushing the typing event while the user is actually typing.

Solution: You need to implement a debounced interval in your frontend code. Don’t just call the API once on keydown. Set up a timer that sends the typing state every second or so while the user is active, then clear it on pause. Here’s how you structure that in a typical React or Node client:

let typingTimeout;

function handleUserTyping() {
 // Clear existing timeout if user continues typing
 clearTimeout(typingTimeout);
 
 // Send the typing event immediately
 await participantsApi.postConversationWebmessagingParticipantTyping(
 conversationId, 
 participantId, 
 { isActive: true }
 );
 
 // Set a new timeout to stop typing after 2 seconds of inactivity
 typingTimeout = setTimeout(async () => {
 await participantsApi.postConversationWebmessagingParticipantTyping(
 conversationId, 
 participantId, 
 { isActive: false }
 );
 }, 2000);
}

// Bind this to your input event listener
inputElement.addEventListener('input', handleUserTyping);

Make sure your token has the conversation:write scope. If you’re using the PureCloud SDK, ensure the participantsApi instance is initialized with the correct org ID. Also, check the Architect routing settings. Sometimes, if the conversation is already routed to an agent but the agent is on a break or in a different state, the UI might suppress transient signals. Verify the agent is actually in “Available” or “Ready” state. If the agent is “On Call” but the conversation isn’t actively engaged in the UI view, the typing indicator won’t show. You might need to force a UI refresh or check the WebSocket connection status in the browser console. Look for any errors related to wss://platform.devtest.genesyscloud.com.