Arunangshu Das articles - 46 total
10 Key Lessons from My Failed SaaS Launch
They say failure is the best teacher, but it’s not exactly the cheapest one. My first attempt at...
10 Best Practices for API Rate Limiting
If you’ve ever built an API for your SaaS, mobile app, or backend services, you’ve probably been hit...
How to Securely Host Frontend and Backend Together
Let’s be honest—building a great app isn’t enough. You could write elegant code, perfect your UI/UX,...
10 Tips for Optimizing Node.js with Built-In Caching
Node.js is a powerful platform for building fast, scalable applications, especially for real-time and...
5 Benefits of Server-Side Compression for Your Website
“Speed is a feature.” — Fred Wilson, Venture Capitalist In today’s internet economy, speed is...
Avoiding Cross-Origin Issues While Hosting Full Projects
If you've ever found yourself in the middle of a web project and suddenly hit with “CORS policy...
6 AI APIs That Can Help You Build a SaaS in a Weekend
Let’s be honest: building a SaaS used to take months. Now, with the rise of AI APIs, you can go from...
5 Reasons Your Express App Is Running Slowly
Express.js is the go-to web framework for Node.js developers—and for good reason. It's minimal,...
85% of Developers Misuse This One AWS Feature
“It’s just S3. What could go wrong?” If you’ve ever had this thought while deploying an app,...
10 VSCode Settings Devs Never Optimize
Visual Studio Code (VSCode) is more than just a text editor—it’s practically a dev companion. But...
The One Line of Code That Crashes Most Node.js Apps
“It was just one line.” That’s what every developer says before their Node.js app crashes in...
How One Middleware Fixed 90% of Our Node.js Bugs
If you're building backend services in Node.js, you’ve probably faced bugs that feel like they appear...
5 Tools That Let You Code Without Writing a Single Line
Welcome to the world of no-code and low-code development platforms—tools that are redefining how we...
Top 10 VS Code Extensions That Write Code for You
In 2025, it's not just about linting and formatting code anymore. We’re in the era where your IDE can...
9 Tools That Turn Junior Devs into Senior Engineers
“How do I level up as a developer?” Every junior dev has asked this. Some ask out loud, some keep it...
10 JWT Mistakes That Compromise Security
In the fast-paced world of web and mobile development, JWT (JSON Web Tokens) has become the de facto...
6 Common Mistakes to Avoid When Deploying Express.js
Express.js is a minimal and flexible Node.js web application framework that provides a robust set of...
5 AI Developer Tools to Double Your Coding Speed
“It's not about replacing developers — it’s about supercharging them.” In today’s fast-paced tech...
10 Common Mongoose Mistakes That Break Your MongoDB App
MongoDB and Mongoose are a powerful duo for Node.js developers. MongoDB gives you a flexible NoSQL...
How to Deploy a Node.js App on Railway in Under 10 Minutes
In today’s fast-paced world, developers want speed, simplicity, and scalability. That’s why platforms...
7 Best Practices for MongoDB Atlas Credentials in the Cloud
In today’s cloud-first world, security isn’t a bonus feature — it’s a critical requirement. If you're...
10 Common Docker Mistakes That Hurt Node.js App Performance
Docker has revolutionized the way developers build, package, and deploy applications. Its convenience...
How to Use Cloudflare Workers to Deploy a Minimal Node.js API
When we think of deploying APIs, especially with Node.js, our minds usually go to Express.js servers...
10 Mistakes Developers Make When Deploying to AWS EC2
Amazon EC2 is powerful. It gives developers the freedom to spin up virtual machines in minutes,...
7 Tips for Serverless Node.js API Deployment
Serverless architecture is no longer a buzzword—it’s a necessity for modern development teams who...
How to Deploy a Dockerized Node.js App on Google Cloud Run
If you're building scalable applications in Node.js, there's a good chance you've considered...
How to Host a Mongoose-Powered App on Fly.io
If you're building a full-stack JavaScript application using Node.js, Express, and MongoDB with...
How to Deploy a Node.js App on Vercel (with API Routes Support)
Node.js has become the backbone of modern web applications, thanks to its speed, simplicity, and...
7 Steps to Build Secure Access Control with AWS IAM
When it comes to building secure systems on AWS, Identity and Access Management (IAM) is your...
5 Steps to Host a Fast Static Website on AWS
Let’s be real for a second— if your website takes more than 3 seconds to load, you’re already losing...