Pharmaceutical Manufacturing Supply Chain using Hyperledger Fabric

A blockchain-based solution for tracking and verifying pharmaceutical manfacturing processes across the supply chain using the permissioned Hyperledger Fabric, privaetly among stakeholder parties.

Motivation

The pharmaceutical supply chain is a critical component of healthcare systems, and ensuring its transparency and efficiency is paramount. Recent research highlights the challenges faced in this domain. For example:

• Smith et al., 2024 discuss the vulnerabilities in global pharmaceutical supply chains and emphasise the necessity of blockchain-based solutions to enhance transparency and traceability.

This project addresses such challenges by leveraging HyperLedger to create a robust blockchain solution for the pharmaceutical supply chain.

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System Architecture

The system consists of four main components:

1. Hyperledger Fabric Network

   • Multiple organizations (Manufacturer, Distributor, Pharmacy, Regulator)
   • Channel-based privacy
   • Chaincode for drug batch lifecycle management

2. Smart Contracts (Chaincode)

   • Written in Go
   • Manages drug batch creation, transfers, and verification
   • Role-based access control

3. API Server

   • Node.js with Express
   • Fabric SDK integration
   • JWT-based authentication
   • RESTful endpoints for all operations

4. Web Frontend (Coming Soon)

   • React-based dashboard
   • Role-specific views
   • Real-time tracking
   • QR/Barcode scanning capability

Prerequisites

• Go 1.19+
• Node.js 14.14.0+
• Docker and Docker Compose
• Hyperledger Fabric 2.5+

Project Structure

├── api-server/          # Node.js API server
├── chaincode/           # Go chaincode
├── front-end/          # React frontend (WIP)
└── network/            # Fabric network configuration

Setup Instructions

1. Network Setup

   cd network
   ./scripts/startNetwork.sh

2. Install Chaincode

   cd chaincode/pharma
   go mod vendor
   cd ../../network
   ./scripts/deployChaincode.sh

3. Start API Server

   cd api-server
   npm install
   npm start

API Endpoints

Drug Batch Operations

• POST /api/v1/organization/:org/batch - Create new drug batch
• PUT /api/v1/organization/:org/batch/transfer - Transfer drug batch
• GET /api/v1/organization/:org/batch/:id - Get drug batch details
• GET /api/v1/organization/:org/batches - List all drug batches

License

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

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.