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python-fast-api

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boilerplate for json api on python FastAPI

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# FastAPI Boilerplate

A modern, production-ready FastAPI boilerplate with built-in authentication, user management, and notification features. This project follows best practices for API development and includes essential tools and configurations out of the box.

## 🚀 Features

- **FastAPI** - Modern, fast (high-performance), web framework for building APIs
- **SQLAlchemy 2.0** - Full async SQL toolkit and ORM
- **Alembic** - Database migrations
- **JWT Authentication** - Secure token-based authentication
- **Pydantic v2** - Data validation and settings management
- **Dependency Injection** - Clean architecture with dependency injection
- **WebSockets** - Real-time bidirectional communication for notifications and live updates
- **RabbitMQ Integration** - Message queuing for background tasks and email notifications
- **Async MySQL** - Async database support with aiomysql
- **Environment Configuration** - Easy environment variable management
- **CORS** - Built-in CORS middleware
- **Structured Logging** - Ready for production logging with Loki support
- **Type Hints** - Full Python type support
- **Email Service** - Built-in email service for user notifications with queue support
- **Gunicorn with uvloop** - High-performance server with ultra-fast event loop implementation

## 📦 Prerequisites

- Python 3.13
- MySQL 8.0
- RabbitMQ 3.x - Message broker for background tasks
- [uv](https://github.com/astral-sh/uv) - Fast Python package installer and resolver

## 🛠️ Installation

1. Clone the repository:
   ```bash
   git clone git@github.com:{your_username}/python-fast-api.git
   cd python-fast-api
   ```

2. Create and activate a virtual environment using uv:
   ```bash
   uv venv
   source .venv/bin/activate  # On Windows: .venv\Scripts\activate
   ```

3. Install dependencies with uv:
   ```bash
   uv pip install -e .
   ```

4. Set up environment variables:
   ```bash
   cp .env.example .env
   # Edit .env with your configuration
   ```

5. Initialize the database:
   ```bash
   alembic upgrade head
   ```

## 🚀 Running the Application

Start the development server:
```bash
# Development mode with auto-reload
python server.py

# Production mode with Gunicorn and uvloop
gunicorn -c gunicorn.conf.py server:app
```

The API will be available at `http://localhost:8000`

API documentation:
- Swagger UI: `http://localhost:8000/docs`
- ReDoc: `http://localhost:8000/redoc`

### Running Background Workers

The application uses RabbitMQ for background task processing. To process email notifications in the background:

```bash
# Start the email worker
python src/cmd/email_worker.py
```

This worker connects to RabbitMQ and processes email tasks from the queue, allowing the main application to continue processing requests without waiting for emails to be sent.

## 🏗️ Project Structure

```
src/
├── app/                    # Application components
│   ├── auth/              # Authentication module
│   ├── user/              # User management
│   ├── user_notification/ # Notification system
│   └── ws/                # WebSockets implementation
├── cmd/                    # Command-line tools
│   └── worker/            # Background workers
│       └── email/         # Email processing workers
├── core/                  # Core functionality
│   ├── di/               # Dependency injection
│   ├── exception/         # Custom exceptions
│   ├── http/             # HTTP-related code
│   ├── log/              # Logging configuration
│   ├── rabbit_mq/        # RabbitMQ integration
│   ├── service/          # Core services
│   ├── settings/         # Application settings
│   └── web_socket/       # WebSockets core functionality
└── database/              # Database configuration
```

## 📚 API Endpoints

### Authentication
- `POST /auth/signup` - Register a new user
- `POST /auth/login` - User login
- `POST /auth/refresh` - Refresh access token
- `GET /auth/confirm-email` - Confirm email address
- `POST /auth/re-send-confirm-email` - Resend confirmation email

### Users
- `GET /users` - List users
- `POST /users` - Create a user
- `GET /users/{user_id}` - Get user by ID

### Notifications
- `GET /user-notifications` - List user notifications
- `POST /user-notifications` - Create a notification

### WebSockets
- `WebSocket /ws/{user_id}` - Real-time connection for user-specific notifications and updates

## 🔒 Environment Variables

Required environment variables are defined in `.env.example`. Copy this to `.env` and update the values:

```
# Application
ENVIRONMENT=dev
LOG_REQUEST=True
LOKI_URL="http://127.0.0.1:3100"
LOKI_ENABLED=False
APP_NAME="App"
SERVICE_NAME="api"
X_API_KEY=

# Database
SQLALCHEMY_DATABASE_URI=mysqlaiomysql://user:password@host/db_name

# JWT
JWT_PUBLIC_KEY=""  # base64
JWT_PRIVATE_KEY=""  # base64
JWT_ALGORITHM="ES512"
JWT_ACCESS_EXPIRATION_HOURS=8
JWT_REFRESH_EXPIRATION_HOURS=24
JWT_CONFIRM_TOKEN_EXP_HOURS=24

# Email
SMTP_SERVER="smtp.gmail.com"
SMTP_PORT=587
APP_PASSWORD="YOUR_PASSWORD"
FROM_EMAIL="YOUR_EMAIL"
APP_URL="http://localhost:8000"

# RabbitMQ
RABBITMQ_URL="amqp://guest:guest@localhost/"
```

## 🧪 Testing

Run tests with pytest:
```bash
pytest
```

## 🛠️ Development

### Code Quality

This project enforces strict code quality standards using:

- **Ruff** - An extremely fast Python linter and code formatter
- **Mypy** - Static type checking
- **Black** - Code formatting (via Ruff)
- **isort** - Import sorting (via Ruff)

#### Running Linters and Type Checking

Run Ruff linter:
```bash
ruff check .
```

Run Ruff formatter:
```bash
ruff format .
```

Run Mypy type checking:
```bash
mypy .
```

### Database Migrations

Create a new migration:
```bash
alembic revision --autogenerate -m "description of changes"
```

Apply migrations:
```bash
alembic upgrade head
```

## 📄 License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

## 🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

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