DrawLint.aiMedium✦ Official
45 minChat System
Design a real-time chat application supporting 1:1 messaging, group chats, online presence, and message history.
These requirements and scale numbers are for reference. The AI reviewer will evaluate your design based on the functional requirements and assumptions you define.
🎯 Key Requirements
- •Real-time 1:1 and group messaging
- •Online/offline presence and typing indicators
- •Persist message history with pagination
📐 Scale Expectations
- •1M daily active users
- •10K messages per second at peak
- •Message delivery within 500ms when both users are online
🔗 Related Topics
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