README for Backend POS System

Overview

This is the backend for a Point of Sale (POS) system built using Express or Hapi. It provides functionalities for user authentication, product management, and order processing, with data stored in Firestore.

Features

• User authentication (login and registration)
• Product management (CRUD operations)
• Order processing
• Middleware for authentication checks
• Configured for deployment on Google Cloud App Engine

Project Structure

pos-system
├── backend
│   ├── src
│   │   ├── app.ts
│   │   ├── config
│   │   │   ├── firebase.ts
│   │   │   └── auth.ts
│   │   ├── controllers
│   │   │   ├── authController.ts
│   │   │   ├── productController.ts
│   │   │   ├── orderController.ts
│   │   │   └── userController.ts
│   │   ├── middleware
│   │   │   └── authMiddleware.ts
│   │   ├── routes
│   │   │   ├── authRoutes.ts
│   │   │   ├── productRoutes.ts
│   │   │   ├── orderRoutes.ts
│   │   │   └── userRoutes.ts
│   │   └── types
│   │       └── index.ts
│   ├── app.yaml
│   ├── package.json
│   ├── tsconfig.json
│   └── README.md

Getting Started

1. Clone the repository.
2. Navigate to the backend directory.
3. Install dependencies using npm install.
4. Set up Firebase configuration in src/config/firebase.ts.
5. Run the application using npm start.

Deployment

To deploy the backend to Google Cloud App Engine, ensure that the app.yaml file is correctly configured and run the deployment command.

License

This project is licensed under the MIT License.