env variables NODE_ENV="development" HOST=https://localhost PORT=5000 DB_URL=mongodb+srv://username:[email protected]/bot?retryWrites=true&w=majority TZ=Asia/Kolkata EMAIL_HOST=smptp.gmail.com EMAIL_PORT= 587 EMAIL_SERVICE=gmail APP_EMAIL=******@gmail.com APP_EMAIL_PASSWORD=dyxknkpxemsqqgrbpoh