SENDGRID_API_KEY: I used sendgrid service to send OTP mails.
Build Setup
// To Install Client Dependencies"client-install": "npm install --prefix client",// Start the server"start": "node server.js",// Start the server (with nodemon)"server": "nodemon server.js",// Start the client server (react server)"client": "npm start --prefix client",// Start both servers concurrently"dev": "concurrently \"npm run server\" \"npm run client\""