RAG-FastAPI ( Retrieval-Augmented Generation API )

RAG-FastAPI ( Retrieval-Augmented Generation API )

Tech Stack: Python 3.x , FastAPI , Pydantic , Uvicorn

The Problem

Traditional APIs return static data , but RAG systems combine semantic search with generative models to provide contextually accurate answers based on a collection of documents. This is useful when building:
  • AI assistants
  • Smart knowledge-based search systems
  • Document Q&A backends
This project demonstrates how to set up such a system in Python.

Key Achievements

  • FastAPI backend - high-performance, production-ready API using modern Python.
  • Document collection handling - endpoints to upload and manage docs for retrieval.
  • Vector-based retrieval logic - retrieve relevant context using vector similarity (semantic search).
  • LLM integration (extendable) - foundation to plug in language models (OpenAI, LangChain, etc.) for generative responses.
  • Modular and extensible structure - clear app layout (app, data, tests, config) for easy growth and experiments.
  • Basic test setup - test suite included for software quality and reliability.