Tech blogs on code, architecture and AI.

Deep dives into React.js, AI and ML integration, MERN stack patterns, and lessons from building production applications at scale in India — written by Deepak Kumar.

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javascript35 articles
Node.js34 articles
Engineering22 articles
React22 articles

+ 183 more topics in the archive

80 articlesLatest · Sept 2026

Where the archive has depth — every article is reachable from this page.

Showing 2 articles tagged rag. Clear filter

Lead article

Build a RAG App with LangChain, OpenAI & Node.js — Step by Step

Feb 20, 2026 · 12 min read 0 views

How I built a Retrieval-Augmented Generation system at India Today Group for intelligent article search and content automation using LangChain, OpenAI, and MongoDB Atlas Vector Search.

AI/MLLangChainOpenAINode.jsRAG

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Building a Production-Ready React Chat Assistant with OpenAI

Explore the key techniques for developing a React-based ChatGPT-style app using streaming, RAG, and pgvector.

reactopenaistreamingrag

Aug 27, 202606:05 am IST5 min readReact1 views

About the author

Deepak Kumar

Sr Software Engineer at India Today Group | Aaj Tak

Building scalable web applications and Generative AI systems. Writing about React, Node.js, AI and the engineering lessons from 9+ years of production work.

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