#nodejs

Articles tagged with #nodejs

Express.js: I Stopped Fighting Node's HTTP Module and Everything Got Easier
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
May 8, 202610 min read1
Where Do Uploaded Files Actually Go? A Question I Should Have Asked Sooner.
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
May 8, 20268 min read2
Express Middleware: The Stuff That Runs Before Your Route Does Anything
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
May 8, 202618 min read1
Node.js: How JavaScript Escaped the Browser and Why That Matters
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
May 7, 202610 min read3
Node.js Runs on One Thread. Here Is How It Handles Thousands of Users Anyway.
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
May 7, 202611 min read1
URL Parameters and Query Strings: The Two Ways Your URL Talks to Your Server
I spent an embarrassing amount of time early on not understanding why sometimes data showed up in my URL after a slash and sometimes after a question mark. I would look at URLs like /users/42 and /use
May 7, 20267 min read2