# Simple Todo App

This is a simple Todo API application built with FastAPI and SQLite.

## Features

- Create, Read, Update, and Delete Todo items
- Health check endpoint
- Database migrations using Alembic
- SQLite database for data storage

## Project Structure

```
.
├── alembic/             # Database migration files
├── app/                 # Application package
│   ├── database/        # Database configuration and session management
│   ├── models/          # SQLAlchemy ORM models
│   ├── routers/         # API route handlers
│   └── schemas/         # Pydantic models for request/response validation
├── alembic.ini          # Alembic configuration
├── main.py              # Application entry point
└── requirements.txt     # Project dependencies
```

## Installation

1. Clone the repository:

```bash
git clone <repository-url>
cd simpletodoapp
```

2. Create a virtual environment and activate it:

```bash
python -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate
```

3. Install dependencies:

```bash
pip install -r requirements.txt
```

## Database Setup

1. Run database migrations:

```bash
alembic upgrade head
```

## Running the Application

Start the application with Uvicorn:

```bash
uvicorn main:app --reload
```

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

## API Documentation

Once the application is running, you can access the Swagger UI documentation at:

- http://localhost:8000/docs
- http://localhost:8000/redoc

## API Endpoints

### Health Check

- GET `/health`: Check the application health status

### Todo Endpoints

- GET `/todos`: List all todos
- POST `/todos`: Create a new todo
- GET `/todos/{todo_id}`: Get a specific todo by ID
- PATCH `/todos/{todo_id}`: Update a specific todo
- DELETE `/todos/{todo_id}`: Delete a specific todo