The JavaScript RAG : Building Chat with Next.js & Supabase

Introduction In this project, we are building a RAG (Retrieval-Augmented Generation) pipeline from first principles using a JavaScript stack. This approach is designed to be friendly for web developers. The data flow demonstrates the fundamentals of LLMs, vector databases, embedding retrieval, and the RAG system. By the end of this blog, you will understand the purpose of each component and how to swap them out to customize your own RAG system. ...

February 2, 2026 · 15 min · Abhishek Rathore
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