How to Build a Full‑Stack RAG Chatbot Using LangChain, FAISS & Langfuse
This guide walks through an end‑to‑end RAG implementation with LangChain, covering multi‑format document loading, recursive text splitting, embedding selection, FAISS vector storage, ConversationalRetrievalChain setup, prompt engineering, source citation, Langfuse observability, and best‑practice configuration management.
