How can I transmit data using Node.js?

How can I transmit data using Node.js?

You can use the built-in 'http' module to create a server and transmit data over HTTP. Would you like a code example?

Yes, please provide a simple example.

Here's a basic example:

const http = require('http');

const server = http.createServer((req, res) => {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    res.end('Hello, World!');
});

server.listen(3000, () => {
    console.log('Server running at http://localhost:3000/');
});

This code creates a simple server that responds with 'Hello, World!'. Would you like to know more about handling different data types?

Yes, how can I handle JSON data?

You can use the 'body-parser' middleware to handle JSON data. Here's how:

const express = require('express');
const bodyParser = require('body-parser');

const app = express();
app.use(bodyParser.json());

app.post('/data', (req, res) => {
    console.log(req.body);
    res.send('Data received!');
});

app.listen(3000, () => {
    console.log('Server running on port 3000');
});

This will allow you to receive JSON data in your POST requests.