Node.js — Web Server

Basic Web Server

const http = require('http');
const fs = require('fs');
const path = require('path');

const server = http.createServer((req, res) => {
    let filePath = path.join(__dirname, 'public', req.url === '/' ? 'index.html' : req.url);
    
    fs.readFile(filePath, (err, content) => {
        if (err) {
            res.writeHead(404);
            res.end('Not Found');
        } else {
            res.writeHead(200);
            res.end(content);
        }
    });
});

server.listen(3000);

MIME Types

const mimeTypes = {
    '.html': 'text/html',
    '.css': 'text/css',
    '.js': 'application/javascript',
    '.json': 'application/json',
    '.png': 'image/png',
    '.jpg': 'image/jpeg',
    '.gif': 'image/gif'
};

Serving Static Files

const express = require('express');
const app = express();

app.use(express.static('public'));

app.listen(3000);

Mini Practice

1. Create a basic web server
2. Serve HTML files
3. Set proper MIME types
4. Use Express static middleware

Up Next

Continue with Express — the Express.js framework.