FastAPI Todo Backend Service

This is a simple Todo API backend service built with FastAPI, SQLAlchemy, and SQLite.

Features

• CRUD operations for Todo items
• API documentation with Swagger UI and ReDoc
• Database migrations with Alembic
• SQLite database

Project Structure

.
├── alembic/              # Database migrations
├── app/
│   ├── api/              # API endpoints
│   │   └── v1/           # API version 1
│   ├── core/             # Core application configurations
│   ├── db/               # Database connection and CRUD operations
│   ├── models/           # SQLAlchemy models
│   └── schemas/          # Pydantic schemas for request/response
├── main.py               # Application entry point
├── requirements.txt      # Python dependencies
└── alembic.ini           # Alembic configuration

Getting Started

1. Clone the repository
2. Install dependencies:

pip install -r requirements.txt

3. Run database migrations:

alembic upgrade head

4. Start the application:

uvicorn main:app --reload

API Documentation

Once the application is running, you can access:

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

API Endpoints

• GET /api/v1/todos/: List all todo items
• POST /api/v1/todos/: Create a new todo item
• GET /api/v1/todos/{todo_id}: Get a specific todo item
• PUT /api/v1/todos/{todo_id}: Update a todo item
• DELETE /api/v1/todos/{todo_id}: Delete a todo item

Example

Create a new todo

curl -X 'POST' \
  'http://localhost:8000/api/v1/todos/' \
  -H 'Content-Type: application/json' \
  -d '{
  "title": "Buy groceries",
  "description": "Milk, bread, eggs",
  "completed": false
}'

List all todos

curl -X 'GET' \
  'http://localhost:8000/api/v1/todos/' \
  -H 'accept: application/json'