Designing Real-Time Web Applications
A practical guide to thinking about event contracts, client state, and real-time UX.
2026-08-206 min read
Real-time applications are less about adding a socket library and more about designing reliable event flows.
Start with events
Define what happened, who needs to know, and what state should change.
Keep state predictable
The client should have a clear model for loading, current state, optimistic changes, and failures.
Make live state understandable
A real-time interface should communicate freshness without overwhelming the user.