Backend Engineering

When it comes to database interaction in Java, a choice is usually made between Java Database...

I've used both in production — Puppeteer for Pikkuna's Finnish VAT invoices, @react-pdf/renderer for pi-pi.ee's Cyrillic invoices. Here's the honest…

PHP 8.5 is here, and while it may not feel quite as dramatic as PHP 8.4’s property hooks and...

I recently started learning JavaScript, and I didn't come in blind. I had Go in my head — how it...

A beginner-friendly guide to CORS, same-origin policy, and why browsers sometimes block API requests.

JSON Web Tokens are everywhere. They're the de facto standard for stateless API authentication and...

As TypeScript developers, we use Tuples when we want to define an array with a fixed number of...

Callback Functions A callback function is a function which is passed as an argument to...

I've been mildly obsessed with typing games since I first used TypeRacer in 2009. Last month I...

Want to use Git like a senior developer? It’s not about knowing hundreds of commands - it’s about...

Why Beginners Struggle with Git Git isn’t just about commands - it’s about understanding...

Mastering Regular Expressions in JavaScript: From Basics to Real-World Validation At first...

Handling duplicate requests in APIs, especially in payment systems, is a headache. NestJS RedisX...

A Backend Developer Application Built Around Failure Modes A Backend Developer...

Hiring for the Backend Engineer Who Makes Production Boring Hiring for the...

I've built this thin Pydantic-over-asyncpg layer too many times now. Every project ends up with the...

TrueFramework is a small, opinionated PHP framework built around three rules: plain PHP and plain...

The Node.js ecosystem has relied on the ws library for 15 years. It’s reliable, but it was built for...

Foundry vs Hardhat in 2026: Which Solidity Toolchain Wins? Two toolchains. Same goal:...

One of most important and basic operations in Java Backend is Consuming Rest api. In this blog I use...

Have you notice something like this in your url. It sometimes look like this...

Dealing with HTTP requests is also learning a lot about network issues and distributed data problems....

Learn how to build a complete audit log in Laravel using spatie/laravel-activitylog v5. Covers setup, model events, Filament display, and v4 migration.

What Unix timestamps actually are, how to convert them in JavaScript, Python, SQL, and the command line, the milliseconds vs seconds trap, timezone gotchas, and

REST API Design Made Simple with Express.js Every backend developer reaches a point where...

JWT Authentication in Node.js Explained Simply Authentication is one of those topics that...

Creating Routes and Handling Requests with Express If raw Node.js feels like: building...

How Node.js Handles Multiple Requests with a Single Thread “Wait… Node.js uses only one...

Hello readers 👋, welcome to the 12th blog in our Node.js series! In the last post, we learned how...

Hello readers 👋, welcome to the 10th blog in our Node.js series! In the last post, we built a clean...

Where do files go after you upload them, and how do you get them back? You've set up Multer....

How to accept profile pictures, documents, and any file your users throw at your server. The...

Three terms that get mixed up constantly — and a clear guide to what each one actually does. When...

There is a conversation that has been going on in backend development circles for over a decade now,...

How one thread, a smart event loop, and non-blocking I/O let Node.js handle thousands of requests...

argparse turns any Python script into a proper CLI tool: help text, type validation, defaults, and subcommands — all from the standard library.

argparse turns any Python script into a proper CLI tool: help text, type validation, defaults, and subcommands — all from the standard library.

Efficient Pagination: Moving Beyond OFFSET for Scalable Data Retrieval Many applications...

Laravel now ships a native passkeys package. Learn how to add passwordless auth to your Laravel app using laravel/passkeys, Fortify, and @laravel/passkeys.

Master REST API design with Express.js. Learn HTTP methods, clean routing, status codes, and...

Imagine launching a web app that handles thousands of users simultaneously—real-time chats firing off...

Authentication is one of those things every developer has to deal with. Let’s make it painless and...

Imagine your Node.js server as a world-class chef in a busy restaurant. One version of the chef can...

1.Difference between class and Object in Java ? 2.What is constructor.How is it different from a...

Ditch the bloat and go edge-native. ⚡️ Say hello to @rabbx/ws: the ultra-lean WebSocket library...

Hello, I'm Maneshwar. I'm building git-lrc, a Micro AI code reviewer that runs on every commit. It is...

Most developers write this code every day: ```js id="e9u2xa" setTimeout(() => { ...

Ubuntu's default APT repository ships an outdated Node.js build that is not suitable for modern...