Introduction

• These components are talking to a NestJS websocket gateway utilising a custom room manager to manage subscriptions.
• Messages and subscription status are available immediately to all connected clients.
• Nest uses Socket IO by default in its Websocket Gateways. It would require custom logic to attach to raw websockets.
• Socket IO provides http like responses for immediate feedback on the success or failure of requests

Basic use

• This is a deliberately simple demonstration but contains all the elements to build more scalable and complex applications
• Create new rooms or join existing ones, the UI updates dynamically to show all available rooms.
• Rooms are create automatically when at least one user joins and are disposed when the subscription reference count reaches zero