Realtime Features (WebSockets and SSE)
Deliver live updates without overloading backend resources.
Recommended approach
- Choose SSE for simple server-to-client streams.
- Choose WebSockets for bidirectional or high-frequency interactions.
- Keep realtime channel auth and authorization explicit.
Alternatives and when to choose them
- Polling for low-frequency update needs.
- Managed realtime providers when you need faster operational rollout.
Implementation checklist
- Define connection lifecycle and heartbeat behavior.
- Protect channels by tenant/user scope.
- Add backpressure and reconnect strategy.
Common pitfalls
- Unbounded fan-out broadcasts.
- Missing per-channel permission checks.