FastAPI Authentication Service

A personal backend project built with FastAPI to explore authentication, API design, and backend architecture in Python.

Features

• User registration and login
• JWT authentication
• Protected endpoints using FastAPI dependencies
• Todo CRUD operations
• Request validation with Pydantic
• SQLite persistence using SQLAlchemy ORM
• Layered architecture (Controllers, Services, Models, Core)

Tech Stack

• Python 3.10+
• FastAPI
• SQLAlchemy
• SQLite
• PyJWT
• Passlib (bcrypt)
• Uvicorn

Project Structure

app/
├── controllers/
├── services/
├── models/
├── core/
└── main.py

Running the Project

pip install -r requirements.txt
uvicorn main:app --reload

API Documentation:

• Swagger UI: http://127.0.0.1:8000/docs
• ReDoc: http://127.0.0.1:8000/redoc

Purpose

This project was created to learn and practice:

• JWT-based authentication
• Dependency injection
• RESTful API development
• SQLAlchemy ORM
• Backend architecture patterns
• Secure API design