GS-Macherechedze/MPESA-API-Coffee-Shop-

# Coffee Shop Backend with M-Pesa Integration A robust Node.js backend application for processing coffee shop payments using M-Pesa STK Push. This application provides a secure and efficient way to handle mobile payments through Safaricom's M-Pesa service. ## 🚀 Features - **M-Pesa STK Push Integration** - Secure payment processing - Real-time payment status updates - Automated payment confirmation handling - **Database Management** - MySQL database for transaction storage - Efficient payment tracking and history - Transaction status monitoring - **Security Features** - Helmet.js for security headers - CORS protection - Rate limiting (100 requests per 15 minutes per IP) - Input validation and sanitization - Secure logging with Winston - **Error Handling** - Comprehensive error logging - User-friendly error messages - Transaction rollback support ## 📋 Prerequisites - Node.js (v14 or higher) - MySQL (v5.7 or higher) - M-Pesa API credentials (Sandbox or Production) - ngrok (for local development and testing) ## 🛠️ Installation 1. **Clone the repository** ```bash git clone cd coffee-shop-backend ``` 2. **Install dependencies** ```bash npm install ``` 3. **Set up environment variables** Create a `.env` file in the root directory with the following variables: ```env PORT=3000 MYSQL_HOST=localhost MYSQL_USER=root MYSQL_PASSWORD=your_password MYSQL_DATABASE=cafe MPESA_CONSUMER_KEY=your_consumer_key MPESA_CONSUMER_SECRET=your_consumer_secret MPESA_SHORTCODE=your_shortcode MPESA_PASSKEY=your_passkey ``` 4. **Set up the database** ```bash mysql -u root -p < database.sql ``` 5. **Start ngrok for local development** ```bash ngrok http 3000 ``` Update the `CallBackURL` in `routes/paymentRoutes.js` with your ngrok URL. ## 🔧 Configuration ### M-Pesa API Configuration - Update the `.env` file with your M-Pesa API credentials - For sandbox testing, use the provided sandbox credentials - For production, replace with your production credentials ### Database Configuratio …