Backend Dev
JWT Token Blacklisting with Redis: Best Practices (2026 Guide)
Use Redis blacklisting for instant JWT revocation. This Node.js guide gives quick, secure patterns to protect tokens, cut breach risk, and keep APIs safe.
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Nilesh Raut
’m Nilesh, a Software Development Engineer with 2+ years of experience, specializing in Go, JavaScript, Python, Docker, Kubernetes, Git, Jenkins, microservices, and system design (LLD/HLD), backed by a strong foundation in data structures and algorithms. Alongside my engineering journey, I bring 4+ years of hands-on experience in SEO, where I’ve worked extensively on content strategy, keyword research, technical SEO, and organic growth, helping products and businesses scale efficiently by aligning solid technology with search-driven performance.
250 articles
Express JS
Secure JWT Authentication with Redis (2026 Guide)
Build a production‑ready stateless auth system with short‑lived JWTs, rotating refresh tokens, and Redis‑based revocation to boost security and scale.
AI
Build a No‑Code AI Agent Interface with Google Gemini API
Build a secure, no‑code AI agent interface with Google Gemini API using an API gateway, React frontend, and serverless backend—no backend code required.
Web Development
Optimize Webpack Bundle Size for React Apps (2026)
Learn 2026 ways to shrink Webpack bundle size for large React apps—tree‑shaking, code‑splitting, persistent caching, and Brotli edge compression that boost TTI.
Node Js
Scalable BullMQ Queue with Redis for Node.js (2026)
Build a BullMQ task queue with Redis in Node.js, enabling horizontal worker scaling, automatic retries, and real‑time monitoring for reliable background jobs.
leet code
Optimizing FastAPI for High‑Concurrency Microservices
TL;DR – Async / await removes I/O wait but does not guarantee high throughput. – Proper async drivers (asyncpg, SQLAlchemy async, aioredis) and sized pools cut latency by 40‑60 % (Uber…
System Desgin
Monitoring & Logging JavaScript AI Agents in Production
💡 Pro Tip: Skipping observability until after your AI agent goes live usually ends with painful firefighting sessions. TL;DR Start simple: Add a correlation…
leet code
Canary Deployments in Jenkins Pipelines: A Step‑by‑Step Guide
TL;DR – Canary deployments let you test new code on a tiny slice of traffic before a full rollout. – Jenkins Declarative Pipelines, Helm 3.12,…
System Desgin
Human-in-the-Loop Approval Workflow for AI Agents
TL;DR – Human‑in‑the‑loop (HITL) checkpoints can stop >70 % of AI mishaps, according to Stanford HAI. – Choose Gatekeeper for tight safety (synchronous), Auditor for…
leet code
Pgpool-II Best Practices for Distributed PostgreSQL
TL;DR – 5 Takeaways – Pgpool‑II sits between your app and PostgreSQL, handling connection pooling, read/write split, and HA failover. – The Watchdog process…
System Desgin
Scale LangChain.js Agents on Kubernetes Fast & Cheap
⚡ Hook: When the checkout page of a fast‑growing e‑commerce site suddenly returned “Service Unavailable” after a weekend spike, the ops team traced the…
leet code
Secure, Scalable API Gateway with Kong for Microservices
⚡ Opening Hook During a Black Friday sale, the e‑commerce platform nileshblog.tech saw traffic soar to 120 k RPS. Within seconds, its customer‑facing services returned 502…
System Desgin
AI Agent Integration Patterns for REST APIs & Microservices
TL;DR – AI agents need more than a raw OpenAPI spec; they require orchestration, adapters, and resiliency patterns. – Choose between synchronous REST calls…
leet code
Docker Swarm vs Kubernetes: Monitoring & Alerting Strategies
TL;DR Docker Swarm’s simplicity keeps metric volume low, but you lose fine‑grained process insight. Kubernetes produces 40‑60 % more time‑series data; plan for storage and…
System Desgin
Custom AI Agent & Function-Calling Framework with TypeScript
Hook: A customer‑support bot that promised “instant answers” stalled at the third user request, spitting out “I’m sorry, I don’t understand.” The failure traced…
leet code
Event‑Driven Notification Service with Go & WebSockets
TL;DR – Real‑time push beats polling by up to 80 % latency (Cloudflare, 2023). – Go’s goroutine model lets a single server juggle tens of thousands of…
System Desgin
Persistent Memory & Context for JavaScript Conversational AI
TL;DR – Stateless chat models forget most of the conversation after a handful of turns. – Adding a persistence layer (Redis, PostgreSQL JSONB, or…
cover
AI
Multi-Agent Systems Explained: How AI Agents Work Together (2026)
A clear, jargon-free explainer on multi-agent AI systems: how specialized agents coordinate, the three core architecture patterns, MCP vs A2A protocols, and when not…