Paperless Billing System

The project aim is to reduce the use of paper and prepare a digital bill receipt using barcode scanner, for a merchant and after proving digital signature, send it to the customer via a mail.

Table of Contents

• Overview
• Features
• Technology Stack
• Project Screenshots
• Prerequisites
• Installation
• Usage
• Security Features
• Contributing
• License
• Acknowledgments

Overview

The Paperless Billing System is a modern, eco-friendly solution designed to streamline the billing process by eliminating paper-based transactions. Implemented a digital bill receipt generation system using Node.js, SQL DBMS, HTML, CSS, and JavaScript. Integrated barcode scanning technology for efficient invoice retrieval and processing for merchants. Ensured data integrity and authentication using SHA-256 hashing algorithm and RSA digital signatures. Designed and implemented a secure email delivery system to send digital bill receipts to customers after verification

Features

1. Registration

   • User can register his company on system with required details.

2. Prepare Bill

   • System user read barcode of products with the help of barcode reader and prepare bill.

3. Digitally sign Receipt

   • After payment is received from customer, receipt with digital signature is generated.

4. Email Receipt to Customer

   • After Receipt is singed then it will be send to specified email address of customer.

5. Verify Receipt

   • eceipt can be verified in future. In case of any changes in data inside receipt, then changes will be detected.

6. View Reports

   • System user can view past records of orders.

7. Manage Inventory Database

   • System user can add,delete,modify products in inventory database.

8. Administrative dashboard

9. Report generation and analytics

Technology Stack

• Frontend:

  • HTML
  • CSS
  • JavaScript

• Backend:

  • Node.js(Express)

• Database:

  • SQL DBMS

• Authentication:

  • SHA-256 hashing algorithm and
  • RSA digital signatures

Project Screenshots:

Prerequisites

• Hardware

  • Barcode Reader
  • Products with UPC Barcode
  • Computer machine( 4GB RAM, 1TB Storage)
  • Database storage (local hard disk)

• Software

  • Visual Studio Code
  • Browser
  • MySQL workbench
  • Node.JS development Environment

• Software Requirements

  • HTML, Bootstrap, CSS, Javascript
  • Node.js on server
  • MySQL for database management
  • PDFKIT
  • Pdf Reader
  • PDF-LIB
  • NodeMailer

• Hardware Requirements

  • Barcode Reader
  • 100GB Memory for Database (as per requirement)
  • Computer system with browser

Installation

1. Clone the repository

git clone https://github.com/Raviast/Paperless-Billing-System.git

2. Navigate to project directory

cd paperless-billing-system

3. Install dependencies for web application

npm install

4. Run the project

node server.js

Usage

1. Admin Portal

   • Managing bills

   • User management

   • System configuration

   • Report generation

2. Customer Portal

   • View bills

   • Make payments

   • Download invoices

   • View payment history

Security Features

• Encrypted data transmission

• Secure payment processing

• Role-based access control

• Session management

• Data backup and recovery

Contributing

We welcome contributions! Please follow these steps:

1. Fork the repository

2. Create your feature branch

   git checkout -b feature/AmazingFeature 
   

3. Commit your changes ( git commit -m 'Add some AmazingFeature')

4. Push to the branch ( git push origin feature/AmazingFeature)

5. Open a Pull Request

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• Thanks to all contributors and supporters