Ahmed's Debug Diary

How to Upload Files in Express.js to AWS S3 Using AWS SDK v3 and Multer Uploading files to AWS S3 is a common task in many backend applications. In this tut…

SQL vs NoSQL: Comparing PostgreSQL and MongoDB with Real-World Examples Choosing the right database is a key decision that directly impacts the scalability, …

Zero Downtime Deployments: Blue-Green Strategy with PM2 and GitHub Actions Blue-Green Deployment is a modern deployment strategy that minimizes downtime and …

⚡ Scaling APIs and Keeping Response Times Under 500ms As backend developers, we often optimize for functionality first. But when your app starts gaining traf…

🚀 Set Up CI/CD for Your Node.js App Using GitHub Actions and PM2 In our previous guide , we manually deployed a Node.js app to a VPS using Nginx and PM2…

🔒 Rate Limiting in Express.js Rate limiting is a critical part of modern web applications that helps prevent abuse by restricting the numbe…

🚀 How to Deploy an Express.js App on an Ubuntu Server using PM2 and Nginx Deploying your Express.js app to a production server might sound dau…

As your application grows, sending notifications—whether via email, SMS, or push—quickly becomes more complex. Take a simple example: when a new user signs up,…

How to Integrate an AI Chat System into Your App Using OpenAI or Chat GPT: A Complete Guide n our previous blog , we explored how AI integration can revolutio…