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Ktor’s WebSocket feature lets you build real‑time APIs with minimal code. Learn how to route, send, and receive frames, see a full echo example, and understand the trade‑offs for scaling and performance.
Explore how Trello uses WebSockets and a Pub/Sub model to synchronize board states in real-time, utilizing optimistic UI updates to minimize perceived latency.
Learn how to use Phoenix Channels and the Presence module to manage real‑time user state across distributed clusters without relying on a central database.
Turbo Streams let a Rails app push small HTML fragments to the browser over WebSocket or Server‑Sent Events, updating only the parts of the page that need it. This guide shows the essential code, explains how the browser processes streams, and lists limits and common pitfalls.
Learn how to diagnose and fix Socket.io connection failures where clients get stuck in 'polling' mode due to CORS, proxy header issues, or missing sticky sessions.
Learn how to synchronize state across distributed Phoenix nodes using PubSub to build scalable, real-time bidirectional communication.
A decision guide for scaling Socket.IO beyond a single Node.js process: compare in-memory, sticky sessions, and the Redis adapter with a concrete two-node validation test.
Learn how Glitch’s live‑code collaboration uses WebSockets and Operational Transform to merge edits, the hot‑reload cycle that instantly updates your app, and the permission model that keeps projects safe. A step‑by‑step example shows you how to verify the flow and what trade‑offs to watch for.
Canva’s real‑time collaboration relies on a central server, WebSocket delta pushes, and operational transformations. This blog walks through how changes sync across clients, shows a live test you can run, and discusses latency, conflict resolution, and scalability trade‑offs.
ktor
kotlin
trello
rails
turbo
nginx
redis
nodejs
glitch