Build a Full Stack RAG System with React, Langchain & Node.js

✨ Want to scrape data like a pro? Get $15 in free credits here: https://brdta.com/notjustdev ✨ Try Genezio today to simplify scaling and deploying your API. Sign up for free here: https://bit.ly/41LCDzh 📚 Get the step-by-step guide: https://assets.notjust.dev/youtube-chat Want to chat with any YouTube video using AI? 🤖 In this tutorial, you’ll learn how to build a full-stack Retrieval-Augmented Generation (RAG) system that lets you ask questions about YouTube content and get accurate, AI-generated answers. You’ll learn how to scrape video transcripts using BrightData, process them with Langchain, and connect to powerful LLMs like OpenAI and Anthropic—all deployed with Genezio. 🤖 🚀 ❗️ React Native Mastery is the ONLY course you need to Master mobile development with React Native & Expo 🚀 Enroll here: https://www.notjust.dev/react-native-mastery 📝 This video includes a lot of tools and technologies, providing an excellent opportunity to learn: 👉 How to scrape YouTube video transcripts using BrightData 👉 How to build a NodeJS and Express backend for a RAG system 👉 How to process YouTube transcripts and generate embeddings with Langchain 👉 How to query OpenAI and Anthropic models for context-aware answers 👉 How to store and retrieve embeddings from a PostgreSQL vector database 👉 How to create a React web app to chat with YouTube videos in real time 👉 How to deploy a full-stack AI app seamlessly using Genezio .. and MORE! 💡 Have an idea for a future tutorial? Share it on our Idea Board: https://github.com/orgs/notJust-dev/discussions 💬 Join the notJust Development gang and let's build together: Twitter: https://twitter.com/VadimNotJustDev Instagram: https://www.instagram.com/VadimNotJustDev Facebook: https://www.facebook.com/notjustdev LinkedIn: https://www.linkedin.com/in/vadimsavin Discord: https://discord.gg/VpURUN2 #notjustdev #langchain #react