WebSockets provide a persistent connection between a client and server that allows both parties to send data at any time, which is essential for chat apps and live collaborative whiteboards.
Node.js Real-time WebSockets
Build full-duplex bi-directional live communication with Socket.io.
Key Takeaways: Node.js Real-time WebSockets
Mastering Node.js Real-time WebSockets helps you write clean and reliable Node.js code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.
Node.js Real-time WebSockets Code Example
Node.js// const io = require("socket.io")(server);
// io.on("connection", (socket) => {
// socket.on("chatMessage", (msg) => io.emit("message", msg));
// });
console.log("WebSocket event listener active for full-duplex streaming.");Output
WebSocket event listener active for full-duplex streaming.
Run this example on your own computer. The "Get Started" lesson shows how to set it up.
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