Watson会话服务+将对话推送到HTML中

I am using Watson Conversation Service based on a sample app with NodeJS server and HTML client implementation. I have a separate event trigger app that communicates with NodeJS. Given a particular event trigger, I would like to display Watson's output text in HTML client side. Since it won't have any HTML request, I was wondering how I could display or make a conversation.message api.I am using Watson Conversation Service based on