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Practical guides

What Recent Updates and Resources Are Available for Socket.IO?

Socket.IO's site lists recent blog posts covering a Bun engine, npm package provenance, a monorepo move, three new adapters, and a chat platform, wit…

Where to Find and Run a Basic Socket.IO Example

The Socket.IO homepage provides a Basic example that you can run directly in the browser through Replit, StackBlitz, or CodeSandbox — no local setup …

How Socket.IO Scales Across Multiple Servers

Socket.IO can scale horizontally across multiple servers, but not by default: you need a shared transport layer called an adapter so that events emit…

How does Socket.IO handle connection reliability and reconnection?

Socket.IO keeps a connection alive through three layers of defense: it uses WebSocket when the network allows it, falls back to HTTP long-polling whe…

What is Socket.IO and what is it used for?

Socket.IO is an open-source JavaScript library for real-time, bidirectional communication between a server and a client. You use it when an applicati…