Lesson 3 - Setting up Node JS and running | Learning MERN Stack

 Step 1 - Create a folder: mern-stack

Step 2 - Open vs code and press Ctrl + `, and then type npm init

Step 3 - Install Express - npm i express

Once the above steps are done,

Step 4 -  create a folder with name backend: mern-stack/backend

Step 5  - Create a file: index.js and paste the below code : 

index.js : 

-------------

const express = require("express");

const app = express();

app.listen(5000, console.log("server started"));

Step 6 - Run the server 

Go to cmd and type : node backend/index.js

and boom, your server is running at PORT 5000

Step 7 - Install Nodemon : npm install -g nodemon

Step 8 - Update package.json file : 

{

  "name": "y",

  "version": "1.0.0",

  "description": "",

  "main": "index.js",

  "scripts": {

    "start": "nodemon backend/index.js"

  },

  "author": "",

  "license": "ISC",

  "dependencies": {

    "express": "^4.17.1"

  }

}

Now run the server : npm start