Chat Platform
Real-time Chat Systems: Architecture and Implementation
Patterns for WebSocket multiplexing, delivery guarantees, and presence at scale.
D
David Kim
2024-01-11 • 9 min read
Backpressure
Protect your brokers by applying quotas and buffering strategies. Drop non-essential events under load.
Delivery
Choose between at-most-once, at-least-once, or exactly-once semantics based on UX and cost.
Presence
Use heartbeats and expiry to maintain accurate presence across devices.