🚀 FastAPI Multi-Tenant SaaS Backend

A production-ready, high-performance Python backend for a SaaS product with multi-tenancy, authentication, and role-based access control. Built with modern async Python and FastAPI.

✨ Features

• Multi-Tenancy: Each organization has completely isolated data
• JWT Authentication: Secure token-based authentication system
• Role-Based Access Control: Admin and member roles with permissions
• Async/await: High-performance async database queries and API endpoints
• SQLite Database: File-based database with full control
• Production Ready: Logging, error handling, configuration management
• Auto-generated Docs: Interactive API documentation with Swagger/Redoc
• Redis Caching: Optional Redis integration for performance

🏗️ Tech Stack

• Python 3.11+ - Modern Python with async support
• FastAPI - High-performance web framework
• SQLAlchemy 2.0 - Async ORM with SQLite/PostgreSQL support
• Pydantic v2 - Data validation and settings management
• JWT - JSON Web Tokens for authentication
• Redis (optional) - Caching for improved performance
• Uvicorn - ASGI server

📁 Project Structure