Getting Started with Express.js and Node.js: A Beginner's Guide

Introduce what Node.js and Express.js are, their key features, and why they are popular choices for developers.

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Title: "Getting Started with Express.js and Node.js: A Beginner's Guide"
Introduction
Introduce what Node.js and Express.js are, their key features, and why they are popular choices for developers.

1. What is Node.js?

Definition: Explain Node.js as a JavaScript runtime built on Chrome's V8 engine.

Key Features: Highlight features like non-blocking I/O, event-driven architecture, and the ability to use JavaScript on the server-side.
Use Cases: Mention common use cases such as web servers, APIs, and real-time applications.

2. What is Express.js?

Definition: Explain Express.js as a minimal and flexible Node.js web application framework.

Key Features: Highlight features like robust routing, middleware support, and simplicity in building web applications and APIs.

Use Cases: Mention common use cases such as RESTful APIs, web applications, and single-page applications (SPAs).

Leave the boring & start coding;

I always recommend you to refer node JS
after my blog guys 😁😁😁;

3. Creating the project;

npm install express in terminal

mkdir my-express-app
cd my-express-app
npm init -y


4. Creating a Simple Express Server

Basic Server: Provide a code example for creating a simple Express server

const express = require('express');
const app = express();
const port = 3000;

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

app.listen(port, () => {
  console.log(`Server is running at http://localhost:${port}`);
});

5. Handling Routes

GET Request: Show how to handle GET requests

app.get('/about', (req, res) => {
  res.send('About Page');
});

POST Request: Show how to handle POST requests.

app.post('/submit', (req, res) => {
  res.send('Form Submitted');
});

1. Handling Form Data Body Parsing: Show how to parse incoming form data need to install before using bodyParser npm i body-parser

const bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

app.post('/submit', (req, res) => {
  res.send(`Form Data: ${JSON.stringify(req.body)}`);
});

9. Connecting to a Database

MongoDB Example: Show how to connect to MongoDB using Mongoose

const mongoose = require('mongoose');

mongoose.connect('mongodb://localhost:27017/mydatabase', {
  useNewUrlParser: true,
  useUnifiedTopology: true,
});

const db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', () => {
  console.log('Connected to MongoDB');
});

Guys you can setup all this codes inside an Index.js file or any single file;

I always advice you to learn from documentations;