📱 Fullstack App: Expo React Native + Flask + MySQL

This is a fullstack mobile application that combines:

• Expo React Native for the frontend (iOS/Android)
• Flask (Python microframework) for the backend API
• MySQL for persistent data storage

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📁 Project Structure

my-fullstack-project/
├── SalesPathNative/         # Expo React Native frontend
├── backend/        # Flask backend with SQLAlchemy
│   ├── app/        # Routes and app logic
│   ├── run.py      # Entry point
│   └── .env        # (NOT COMMITTED) contains DB credentials
├── README.md
└── .gitignore

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⚙️ Technologies Used

Frontend (Mobile):

• Expo (React Native)
• TypeScript
• Axios or Fetch API
• React Navigation

Backend:

• Flask
• Flask SQLAlchemy
• PyMySQL
• MySQL database
• flask-cors

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🚀 Getting Started

1. Clone the Repo

git clone https://github.com/your-username/your-repo-name.git
cd your-repo-name

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2. Setup the Backend (Flask)

cd backend
python -m venv venv
source venv/bin/activate  # (Use venv\Scripts\activate on Windows)
pip install -r requirements.txt
python run.py

It will run on http://<yourIP>:5000/ (check terminal)

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3. Setup the Frontend (Expo)

cd SalesPathNative
npm install
npm start  # or 'expo start'

Make sure your Flask API is accessible from mobile devices — use LAN IP (e.g., 192.168.x.x:5000) in app.json:

"extra": {
  "API_URL": "http://192.168.1.10:5000"
}

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🌍 Deployment

• Deploy backend to Railway, Render, or self-hosted server (e.g., Synology NAS)
• For Expo frontend, use Expo Go for testing or build standalone apps using EAS
• Store secrets in .env and app.json securely
• Enable CORS in Flask to allow mobile access

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🔐 Security

• Do not commit credentials or .env files
• Add .env, venv/, node_modules/, etc. to .gitignore
• Rotate credentials if GitHub flags exposure

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🧠 Future Improvements

• JWT-based authentication
• Push notifications (Expo + Firebase)
• Advanced filtering and search
• API docs using Swagger or Postman
• Dockerization for backend

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📬 Contact

If you have questions or want to contribute, feel free to open an issue or pull request.

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