I used this template from Langchain tutoriel for create a full stack RAG application for asking questions, getting answers. This a monorepo from https://github.com/bracesproul/monorepo-template
The API is an Express.js server written in TypeScript. The web project is a default Next.js app with Tailwind CSS and TypeScript.
https://www.youtube.com/watch?v=rQdibOsL1ps&t=2341s
THANK FOR THIS AMAZING TUTORIEL