Node Js
BullMQ Retries, Rate Limiting & Delayed Tasks (2024 Guide)
Configure BullMQ with exponential backoff, jitter, rate limiting and delayed jobs so Node.js workers stay resilient, avoid thundering‑herd crashes.
// author
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.
314 articles
System Desgin
Build a Low‑Code AI Agent Builder UI with React & Node.js
TL;DR – A drag‑and‑drop canvas lives best on a dedicated canvas library; React only stores the intent. – Store nodes + edges in a relational DB…
AI
Prompt Design for AI Agents: 7 Best Practices (2024 Guide)
Discover a non‑developer’s guide to prompt design for AI agents using the PCTF framework, reusable templates, and tests that boost accuracy and trim latency.
Web Development
Next.js SSR Guide: Boost Core Web Vitals in 2026
Learn how to implement server‑side rendering with Next.js to slash TTFB, lower LCP below 2.5 s, and boost Core Web Vitals, delivering faster SEO‑friendly pages.
Node Js
BullMQ vs Bee-Queue vs Redis Queue: 2026 Node.js Comparison
Explore which Redis‑backed queue—BullMQ, Bee‑Queue, or Redis Queue (RQ)—delivers the best performance, reliability, and scaling for Node.js task processing.
System Desgin
Design Patterns for Resilient, Self‑Correcting AI Agents
TL;DR – 70 % of production AI agent glitches stem from logical loops, not crashes. – Circuit Breaker + Retry cuts workflow failure by 40 %…
Backend Dev
JWT vs Session Cookies: Choose the Right Auth Method (2026)
Explore how JWT and session cookies differ for secure authentication, when to pick each, and practical steps to avoid stale tokens and ensure instant…
System Desgin
Designing a Scalable Redis JWT Session Store (2026 Guide)
Learn how to build a Redis‑backed JWT session store that offers instant token revocation, auditability, and million‑scale sessions while staying under 5 ms latency.
Web Development
Secure SPA with JWT Access & Refresh Tokens (2026 Guide)
Discover a robust JWT strategy for React SPAs: store refresh tokens in httpOnly SameSite cookies, keep access tokens in memory, rotate tokens on use,…
Backend Dev
Refresh Token Rotation & Reuse Detection Guide (2026)
Secure your OAuth2 app by rotating refresh tokens on use and detecting reuse attacks. Follow this guide to implement token families, hashing, and revocation.
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.
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,…