Setup .env for Node JS project

Step 1: Setup new npm package

  npm init

Step 2 : Install the following package: dotenv

 npm install dotenv

Step 3: Create a new .env file in the root directory

Step 4: Add Following Code into the .env file

PORT_NUMBER=3000

Step 5 : To create index.js file add following code

const path = require('path');
const express = require("express");
const app = express();
const dotenv = require("dotenv").config({path:path.resolve('.env')});
const env = dotenv.parsed;

const portNumber = env.PORT_NUMBER;

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

app.listen(portNumber, () => {
  console.log(`Example app listening on port ${portNumber}!`);
});

Step 6: Run the application

  node index.js

Author

• @Mahendran-Balaji