QR Code App

This repository contains a simple QR-code backend (FastAPI) and a React + Vite frontend.

Prerequisites
- Python 3.10+ (for backend)
- Node.js (18+) and npm (for frontend)

Backend (FastAPI)

1) Create and activate a virtual environment

```bash
python3 -m venv backend/.venv
source backend/.venv/bin/activate   # macOS / Linux
```

2) Install Python dependencies

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

3) Run the backend (development)

```bash
uvicorn app.main:app --host 0.0.0.0 --port 5001 --reload

# option B (uses the included runner)
python backend/main.py
```

The backend listens on port 5001 by default and exposes the QR generator at:

POST http://localhost:5001/api/qrcode/generate

Payload JSON shape: { "text": "string", "size": number }
Response: image/png (binary image bytes)

Frontend (React + Vite)

1) Install dependencies and run dev server

```bash
cd frontend
npm install
npm run dev
```

Vite's dev server typically serves at http://localhost:5173. The frontend is configured to call the backend at http://localhost:5001 (see frontend/src/api/qrcode.ts). Ensure the backend is running before using the UI.

Notes

- CORS is enabled in the backend for local development.
- If you change backend port, update the host constant in `frontend/src/api/qrcode.ts`.

Author

- Carlos Gutierrez <cgutierrez44833@ucumberlands.edu>