FastAPI Authentication System

This is a simple authentication API built using FastAPI. It provides user registration, login, password hashing, and JWT token based authentication.

Features

• User Registration
• User Login
• Password Hashing
• JWT Token Authentication
• Protected Routes
• PostgreSQL Database
• Clean Project Structure

Tech Stack

• FastAPI
• SQLAlchemy
• PostgreSQL
• JWT (python-jose)
• Pydantic
• Uvicorn

Project Structure

app/
 ├── core/
 │    ├── database.py
 │    └── security.py
 ├── models/
 │    └── user.py
 ├── schemas/
 │    ├── auth.py
 │    └── user.py
 └── main.py

Setup

1. Create virtual environment

python -m venv venv

2. Activate environment

venv\Scripts\activate

3. Install dependencies

pip install -r requirements.txt

4. Create .env file and add:

DATABASE_URL=your_database_url
SECRET_KEY=your_secret_key
ALGORITHM=HS256
ACCESS_TOKEN_EXPIRE_MINUTES=30

5. Run server

uvicorn app.main:app --reload

Open Swagger docs:

http://127.0.0.1:8000/docs