#11 - Node & Express

// A Simple Node.js Server
const http = require('http');

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello, Node.js!');
});

const PORT = 3000;
server.listen(PORT, () => {
  console.log(`Server running at http://localhost:${PORT}/`);
});
lang-javascript

// A Simple Express.js App
const express = require('express');
const app = express();
const PORT = 3000;

app.get('/', (req, res) => {
  res.send('Hello, Express!');
});


app.listen(PORT, () => {
  console.log(`App listening at http://localhost:${PORT}`);
});
lang-javascript

1. Single Language Synergy: Both Node.js and Express use JavaScript, enabling seamless collaboration between frontend and backend developers. This synergy facilitates faster development cycles and easier debugging.
2. Scalability at its Core: Node.js, with its non-blocking I/O, excels in handling a large number of concurrent connections. Combined with Express, building scalable applications becomes a smoother process.
3. Effortless API Creation: Express provides an intuitive way to create RESTful APIs. With simple syntax and robust features, defining routes, handling requests, and managing responses becomes a breeze.
4. Middleware Magic: Express's middleware system allows you to plug in additional functionality to your application. Whether it's authentication, logging, or custom processing, middleware enhances your app's capabilities.
5. Templating Freedom: Express doesn't dictate a specific template engine, giving developers the freedom to choose. Whether it's Handlebars, Pug, or EJS, you can seamlessly integrate your preferred template engine.

1. Node.js Installation: If you haven't already, install Node.js from [nodejs.org](https://nodejs.org/). This includes npm, the Node.js package manager.
2. Setting Up Your Project: Create a new project folder and run `npm init` to set up your `package.json` file. Follow the prompts to define your project details.
3. Installing Express: Install Express by running `npm install express` in your project folder. This adds Express as a dependency in your `package.json` file.
4. Hello, Express: Create an `index.js` file and set up a simple Express server. Run your app with `node index.js` and visit `http://localhost:3000` in your browser.
5. Building Routes: Explore creating different routes for your application using `app.get()`, `app.post()`, etc. Define route handlers to manage requests and responses.
6. Middleware Marvel: Experiment with middleware functions to enhance your app's functionality. Log requests, authenticate users, or serve static files—Express middleware empowers you.