Real-time 1-on-1 and group chat on Azure with SignalR delivery guarantees, read receipts, typing indicators, and offline support.
Difficulty: intermediate
Tags: chat, websockets, real-time, messaging, azure
A chat application requires real-time message delivery with strong ordering guarantees per conversation, supporting 1-on-1 and group messaging with typing indicators, read receipts, and offline queuing. Azure SignalR Service provides real-time WebSocket delivery at scale while an HTTP fallback ensures messages are never lost even during connectivity gaps. Ideal for teams building messaging apps that need real-time delivery, persistent history, and group chat at consumer scale.