🚀 Fasty Auth – FastAPI Authentication System

An advanced, production-ready authentication system built with FastAPI, SQLAlchemy, PostgreSQL, and Alembic.

This project is created purely for learning backend architecture, and is designed as a clean, scalable template for future real applications (such as the Mendora project).

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✨ Features

• 🔐 JWT Authentication (Access + Refresh Tokens)
• 🔄 Refresh Token Rotation
• 🔑 Role-Based Access (Admin / User)
• 🧩 SQLAlchemy ORM Models
• 🛢 PostgreSQL Integration
• 📦 Alembic Migrations
• 🧱 Clean Folder Structure (Industry Standard)
• 🛠 User CRUD Example
• 🔒 Secure Password Hashing (bcrypt)
• 📁 Environment Variable Support (.env)

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🏗 Tech Stack

• FastAPI
• SQLAlchemy ORM
• Alembic (Migrations)
• PostgreSQL
• Python-Jose (JWT)
• Passlib[bcrypt] (Password hashing)
• Pydantic v2
• Uvicorn (Server)

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🎯 Purpose of This Project

This repository is built for learning and understanding:

• JWT and authentication flow
• Refresh token rotation
• Database architecture with SQLAlchemy
• Alembic migrations
• Role-based authorization
• REST API design
• Folder structure for scalable FastAPI projects

This is a learning-only project.

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Getting Started

1. Clone the repository

git clone https://github.com/KarkiGaurav/fasty-auth.git
cd fasty-auth

python3 -m venv venv
source venv/bin/activate

pip install -r requirements.txt

cp .env.example .env

alembic upgrade head

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Start the FastAPI Server

uvicorn main:app --reload

Some addtional migration commands

alembic init alembic

alembic revision --autogenerate -m "initial migration"

📝 License

MIT License
Copyright (c) 2025