📌 Todo App (Python + FastAPI + Pydantic)

A simple, object-oriented TODO application built with FastAPI, Pydantic, and an in-memory store. This project serves as a starting point for technical interviews, demonstrating best practices in Python API design, object-oriented programming, and dependency management.

🚀 Features

• ✅ FastAPI-based REST API
• ✅ Pydantic models with computed properties
• ✅ In-memory storage with a dynamic parent-child TODO relationship
• ✅ Singleton-based TodoManager for efficient data handling
• ✅ Unit tests with unittest
• ✅ Dynamic child resolution via Pydantic properties

🔧 API Endpoints

• GET /todo → List all TODOs (including children)
• POST /todo → Add a new TODO (optionally linked to a parent)
• DELETE /todo/{todo_uuid} → Remove a TODO

🛠 Setup & Run

# Clone the repo
$ git clone https://github.com/Nextpertise/todo-app-interview.git

# Install dependencies
$ poetry install

# Run the FastAPI server
$ cd src
$ poetry run uvicorn main:app --reload

# Run the tests (from the root directory) and set the python path
$ PYTHONPATH=src poetry run pytest