SimpleBill Server

A mobile-friendly billing application for small retail shops, grocery stores, and kirana shops in India. Helps shop owners transition from handwritten bills to a digital billing system.

Project Structure

src/
├── controllers/    # HTTP request handlers
├── models/         # Data models and schemas
├── views/          # UI templates
├── services/       # Business logic
├── routes/         # API endpoints
├── middleware/     # Request processing
├── constants/      # App constants
├── config/         # Configuration
├── utils/          # Helper functions
├── app.js          # Express app setup
└── server.js       # Entry point

Setup

Install dependencies:

npm install

Create a .env file for environment variables:

PORT=3000

Development

Start the server:

npm start

Start with auto-reload:

npm run dev

Architecture

This project follows MVC architecture with a service layer:

• Controllers handle HTTP requests and responses
• Services contain business logic
• Models define data structures and database interactions
• Routes map URLs to controllers
• Middleware processes requests before they reach controllers

Tech Stack

• Node.js with ES modules
• Express.js
• MVC architecture pattern