Unrolling the paper…

Gallery Cheat sheets Templates Blog Open canvas

Realtime chat

Robin SinghOctober 13, 2026

WebSocket gateway, pub/sub fan-out, message store and push for offline users.

Offered as a template

Diagram: Realtime chat

Use this template

In this diagram

Realtime chat
Ana
Ben
WebSocket gateway
sticky sessions
Message service
Pub/sub
Messages
Presence
who is online
Push
if offline
send
deliver
store
publish
fan out

Made with Diagramly: hand-drawn diagrams from boxes, arrows or a typed line.

Draw your own →

Realtime chat by Robin Singh · Diagramly