Node.js OTP Verification System: MongoDB Atlus & Nodemailer install Setup (Part 2)

In this video (Part 2 of our OTP Verification System series in Node.js), we set up the core backend foundation! We'll create project folders, connect our Node.js app to a MongoDB Atlas cluster, configure environment variables (.env), fix common MongoDB connection errors, and set up the services directory with `otpService.js` and Nodemailer for sending email OTPs. Stay tuned for Part 3 where we complete the full OTP generation and email sending logic! Database Connection (0:00 - 2:07): The creator sets up a db.js file within a config folder to handle the MongoDB connection using Mongoose. Environment Configuration (0:35 - 3:56): The video demonstrates creating an .env file to securely store the MongoDB connection string, which is retrieved from a MongoDB Atlas cluster. Troubleshooting (4:12 - 4:46): The creator provides a solution for common MongoDB connection errors by updating the DNS settings in app.js using dns.setServers(['8.8.8.8']). Service Setup (4:55 - 5:45): A service directory is created for otpService.js, and Nodemailer is installed via npm to facilitate sending OTP emails in future steps. Coming up later in the series: The next installment will cover connecting the otpService.js logic with the application's API to enable the actual sending of OTPs to user email addresses (5:45 - 6:05). 🔔 Subscribe to Codeby-b for more practical web development and backend tutorials:    / @codeby-b   #NodeJS #MongoDB #Nodemailer #BackendDevelopment #OTPVerification #WebDevelopment #JavaScript