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Coding & Walkthroughs

Tutorials, React 19, Next.js App Router, LeetCode, and developer roadmaps.

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CODING•ARTICLE

The LeetCode Era Is Changing: What Happens When AI Enters the Coding Interview?

For years, aspiring software engineers have spent months solving algorithmic problems to prepare for technical interviews. Now, Google is experimenting with AI-assisted code comprehension, while HackerRank is questioning the interview culture it helped popularize. The change raises a bigger question: when AI can generate code, should hiring focus less on writing it and more on understanding, debugging, and validating it?

The Pathak1 min read

CODING•TUTORIAL

Your API Is Slow. Your Database Might Not Be.

A slow API does not automatically mean a slow database. Before rewriting queries or adding indexes, measure the entire request path and find exactly where the time is being spent.

The Pathak7 min read

CODING•ARTICLE

HTTP Just Got a New Method: Meet QUERY

HTTP has a new method: QUERY. It is designed for complex, read-only queries that don't fit comfortably inside a URL, allowing structured query data to be sent in the request body while retaining safe and idempotent semantics.

The Pathak6 min read

CODING•TUTORIAL

What Actually Happens When You Click “Login”?

A login button looks simple, but behind that click is a chain of validation, HTTP requests, database queries, password verification, authentication and protected resources. Let's follow the entire journey.

The Pathak5 min read

CODING•TUTORIAL

I Stopped Asking AI to Write My Code — This Workflow Worked Better

AI can write code faster than most beginners. That doesn't mean you should let it write everything. A better workflow is to make AI handle repetition while you keep control of the decisions.

The Pathak2 min read

CODING•TUTORIAL

React 19 Server Components vs Client State Management

Stop treating Next.js App Router like a traditional SPA. Here is how state boundaries actually work under the hood.

The Pathak8 min read