Azure Web PubSub SDKs for TypeScript Real-time messaging with WebSocket connections and pub/sub patterns. Installation Environment Variables Server-Side: WebPubSubServiceClient Authentication Generate Client Access Token Send Messages Group Management Connection Management Client-Side: WebPubSubClient Connect Send Messages Event Handlers Express Event Handler Key Types Best Practices 1. Use Entra ID auth - for production 2. Register handlers before start - Don't miss initial events 3. Use groups for channels - Organize messages by topic/room 4. Handle reconnection - Client auto-reconnects by…