Articles & Guides

Naming conventions, null vs omission, pagination envelopes, and versioning strategies for production APIs.

HTTP verb semantics, idempotency, pagination, versioning — the principles behind great APIs.

When to use 200 vs 201 vs 204, 400 vs 422 vs 409, and the often-misused 5xx codes.

How JWTs work, when to use them vs sessions, RS256 vs HS256, and the security mistakes that leak tokens.

Declaration merging, mapped types, union types — the practical differences that determine which to use.

Writing schemas with $ref, patterns, formats, and allOf/anyOf/oneOf — and compiling them with AJV.

RFC 7807 Problem Details format, error codes vs messages, retry strategies, and client-side error UX.

safeParse, transforms, pick/omit/partial, discriminated unions, and custom refinements — a complete Zod 3.x guide.

Flowcharts, sequence diagrams, ER diagrams, and state machines — all as text that renders in GitHub and GitLab.

Collapsible sections, GitHub badges, footnotes, keyboard shortcuts, and the ideal README structure.

Live expressions, logpoints, local overrides, network request blocking, and reading the flame chart.

field(), frozen instances, __slots__, inheritance pitfalls, and JSON serialisation — with practical patterns.

Six patterns that cause timezone bugs — storing local time, JS Date traps, DST arithmetic, cron schedules — and how to prevent them.

Encoding modes, error correction levels, finder patterns, quiet zones, and how to generate QR codes correctly — including UPI payment QRs.

The format you choose can cut page load time in half — or double it. A practical breakdown for web developers with real compression numbers.

Why your site loads fine on fiber but breaks on 4G in Tier-2 cities — and the specific optimisations that make the biggest difference for Indian users.

An opinionated guide to what's actually changed developer workflows in 2026 — from AI pair programmers to terminal utilities — and what's due for retirement.

After 18 months daily use of Copilot, Claude, Cursor, and ChatGPT — what they actually do well, where they fail, and whether the subscription is worth it.

Every language lies to you about string length. Emoji, Devanagari, and ZWJ sequences expose the gap between what you think a string is and what it actually is in memory.

Half-knowledge of HTTP caching causes more bugs than no knowledge. A ground-up guide to Cache-Control directives, ETags, stale-while-revalidate, and CDN edge cache behaviour.

Git is not magic. Every commit, branch, and merge is built from four simple object types stored as plain files. Once you see the internals, you'll never fear a rebase again.

A ground-up walkthrough of a URL shortener handling 10 billion redirects/month — ID generation, Redis caching, DB sharding, and CDN edge routing with architecture diagrams.

How RAG and Agentic RAG work, the difference between the two pipelines, chunking strategies, vector stores, and when to choose each architecture for your AI application.

How MCP works, the three primitives (tools, resources, prompts), building your first MCP server, and why it's becoming the standard for AI-tool integration.

Set up four MCP servers so your team can query GitHub PRs, Jira tickets, Confluence docs, and AWS logs from a single Claude conversation — with real config, usage examples, and security guidance.

AI-powered sprint reporting, release coordination, and knowledge-base maintenance using MCP — connect Jira, Confluence, and Azure DevOps so business workflows run in one prompt.

The four chatbot tiers — scripted, LLM prompt-based, RAG-powered, and agentic — explained with architecture diagrams, real implementation patterns, and a platform comparison guide.