Build an AI RAG Application with LangChain & Next.js

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Learn how to build an AI RAG application with LangChain & Next.js. This tutorial introduces LangChain and shows how to use the framework to enhance your chatbots and build RAG (retrieval augmented generation) applications with Next.js.

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Build an AI RAG Application with LangChain & Next.js

(00:00) Intro
(00:12) Welcome
(00:34) Lesson Goal
(01:03) What is RAG?
(02:17) What is LangChain?
(03:39) Source Code
(04:14) OpenAI API Key
(05:04) Dependencies
(06:35) Frontend Chat Component
(07:24) Simple Chat Example
(09:29) Ex. 1: LangChain Chat
(14:51) Ex. 2: Chat with History
(21:06) Ex. 3: Chat with Personality
(22:37) Ex. 4a: RAG Pattern Chat with JSON Object
(29:58) Ex. 4b: RAG Pattern Chat with JSON file
(32:11) Wrap-up

📚 Tutorial References:
🔗 LangChain: https://js.langchain.com/docs/get_sta...
🔗 Next.js: https://nextjs.org
🔗 Vercel AI SDK: https://sdk.vercel.ai/docs
🔗 OpenAI: https://openai.com/
🔗 shadcn/ui: https://ui.shadcn.com/
🔗 Next.js Light & Dark Modes: https://www.davegray.codes/posts/ligh...

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