Integrating node.js bot with html

I have created a command line based weather bot(named as vanilla) using node js. And it works completely fine why implementing in command line. I have also created a simple chat template. I want my input to the html to got to the weather bot js and the output from there to display as reply in my html. Could you please help me with this? Here are links to the node.js bot repository and the chat template.

https://github.com/Khushik514/Vanilla

https://github.com/Khushik514/chat-bot-design