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Node.js Networking · medium

3. Node.js Low-Level Networking: net, dgram, and TLS

TCP servers, UDP sockets, and non-blocking streaming.

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Node.js provides native streaming network modules: - `node:net`: Raw TCP servers and client streams. - `node:dgram`: Raw UDP socket binding and datagram emission. - `node:tls`: TLS/SSL encrypted streaming sockets over TCP.

javascript
import net from 'node:net';

const server = net.createServer((socket) => {
    socket.on('data', (chunk) => socket.write(chunk)); // Echo server
});
server.listen(8080);

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Check your understanding

  1. 1. Which native Node.js module is used to create raw UDP sockets?

  2. 2. What interface does a node:net socket implement in Node.js?

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