L8. ⚡ Node.js + Express.js – Server & Routing

// SERVER & ROUTING IN EXPRESS.JS ⚙️
// In Node.js, we used 'http' module to create a server
// In Express.js, it's much easier and faster 🚀

import express from 'express';

// Call express as a function to create the app instance 🧠
const app = express();

// ROUTING 🛣️

// Home route '/'
app.get('/', (req, res) => {
    res.send("You are requested for home route");
});

// Contact route '/contact'
app.get('/contact', (req, res) => {
    res.send("You are requested for contact page");
});

// Define a port 🚪
const port = 2000;

// Start the server 🔥
app.listen(port, () => console.log(`Server is running on port ${port}`));

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✨ Explanation

• Express is a Node.js framework that makes it easy to build servers.

• app is your Express server instance.

• app.get() is used to define routes like / and /contact.

• res.send() sends plain text (or HTML) as a response to the client.

• You don’t need http.createServer() here — Express handles it internally.