README.md

metadata

title: DocFusion RAG Backend
emoji: 📚
colorFrom: blue
colorTo: purple
sdk: docker
pinned: false
license: mit
app_port: 7860

DocFusion - RAG Backend API

This is the backend API for DocFusion, a Retrieval-Augmented Generation (RAG) chatbot that allows users to upload PDF documents and interact with them using natural language queries.

Features

• 🔐 JWT-based authentication
• 📄 PDF document upload and processing
• 🤖 AI-powered chat with RAG
• 💾 MongoDB integration
• 🔍 Vector similarity search with ChromaDB
• 📊 Session management

API Endpoints

• GET /api/health - Health check
• POST /api/auth/register - User registration
• POST /api/auth/login - User login
• POST /api/documents/upload - Upload PDF documents
• POST /api/chat/ask - Ask questions about documents
• GET /api/sessions - List chat sessions

Tech Stack

• Framework: FastAPI
• Vector DB: ChromaDB
• Embeddings: HuggingFace (all-MiniLM-L6-v2)
• LLM: OpenAI GPT-4
• Database: MongoDB
• Storage: Cloudinary

Environment Variables Required

Set these in the Hugging Face Space settings:

MONGODB_URL=your_mongodb_connection_string
JWT_SECRET_KEY=your_jwt_secret
OPENAI_API_KEY=your_openai_api_key
GROQ_API_KEY=your_groq_api_key (optional)
HUGGINGFACE_TOKEN=your_hf_token
CLOUDINARY_CLOUD_NAME=your_cloudinary_name
CLOUDINARY_API_KEY=your_cloudinary_api_key
CLOUDINARY_API_SECRET=your_cloudinary_secret

Frontend

The frontend is a separate React application that connects to this API.

For the complete project, visit: [GitHub Repository]

License

MIT License