Task API (FastAPI)

A small REST API for managing tasks, built to practise FastAPI, Pydantic validation and clean object-oriented structure.

Features

• CRUD endpoints: POST /tasks, GET /tasks, GET /tasks/{id}, PATCH /tasks/{id}, DELETE /tasks/{id}
• Validation with Pydantic v2 (empty titles are rejected with HTTP 422)
• Filtering by done and priority; open, high-priority tasks are listed first
• Storage behind an abstract TaskRepository interface, injected with FastAPI Depends, so the in-memory store can be replaced by a database without touching the endpoints
• Thread-safe in-memory implementation
• Tests with pytest and FastAPI's TestClient

Run

python -m venv .venv && source .venv/bin/activate
pip install -r requirements.txt
uvicorn app.main:app --reload

Open http://127.0.0.1:8000/docs for the interactive Swagger UI.

Test

pytest -q

Project structure

app/models.py      Pydantic schemas (TaskCreate, TaskUpdate, Task)
app/repository.py  TaskRepository interface + in-memory implementation
app/main.py        FastAPI app and routes
tests/             API tests

Next steps

• SQLite storage with SQLModel
• Authentication (OAuth2 password flow with JWT)
• Docker image