@saumyagrawal

Express.js: I Stopped Fighting Node's HTTP Module and Everything Got Easier

6d ago · 10 min read · I built my first Node.js server using the built-in http module. It worked. It also made me want to close my laptop and go outside. Not because the code was hard, but because every tiny thing required

Where Do Uploaded Files Actually Go? A Question I Should Have Asked Sooner.

6d ago · 8 min read · I built a profile picture upload feature for a side project. It worked. Users picked a file, hit submit, and the server saved it. I was proud of myself for about three hours until I deployed to a free

Express Middleware: The Stuff That Runs Before Your Route Does Anything

6d ago · 18 min read · I spent a full afternoon staring at a bug where every single route in my Express app returned undefined for req.body. The POST request was fine. The JSON was valid. The route handler was correct. I wa

Node.js: How JavaScript Escaped the Browser and Why That Matters

May 7 · 10 min read · For years, JavaScript lived inside the browser and nowhere else. You could make buttons change color, validate a form before it was submitted, maybe animate a dropdown menu. That was it. If you wanted

Node.js Runs on One Thread. Here Is How It Handles Thousands of Users Anyway.

May 7 · 11 min read · The first time someone told me Node.js is single-threaded, I thought they were messing with me. How does a server that runs on one thread handle thousands of people hitting it at the same time? That s