Ingesting Pdf, Docx, Xlsx, Pptx And Other Office Formats Into Embeddings

FastAPI + LangChain RAG service that embeds documents per file_id and stores them in PostgreSQL/pgvector (or Atlas MongoDB). It exposes async add/query/delete routes with JWT-verified owner scoping, built mainly as the retrieval backend for LibreChat.

RAG | Python · fastapi · langchain