🚀 Hyperledger Fabric Asset Management System with ABAC

This project is a Hyperledger Fabric-based asset management system that enforces Attribute-Based Access Control (ABAC). It allows users with different roles (Admin, User, Auditor) to interact with assets on the blockchain securely.

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📌 Features

• ✅ Admins can create, update, and delete assets.
• ✅ Users can view only their own assets.
• ✅ Auditors can query and view all assets.
• ✅ Implements ABAC (Attribute-Based Access Control) using user identity certificates.
• ✅ Provides a REST API for interacting with Fabric via Node.js & Express.js.

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🛠 Project Architecture

🔹 Network Components

• 2 Organizations (Org1, Org2)
• 2 Peers per Organization
• 1 Orderer (Raft Consensus)
• 1 Channel (simplyfichannel)
• Fabric CA for Identity Management

🔹 Smart Contract (Chaincode) Functionalities

• CreateAsset(assetID, owner, value) - Admin creates an asset.
• ReadAsset(assetID) - Users/Auditors read asset details.
• UpdateAsset(assetID, newValue, newOwner) - Admin updates an asset.
• DeleteAsset(assetID) - Admin deletes an asset.
• GetAllAssets() - Auditors can retrieve all assets.

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📂 Directory Structure

├── server/                  # Node.js REST API
│   ├── app.js         # Express.js server
│   ├── routes.js         # API routes
├── chaincode/            # Chaincode for asset management
│   ├── assetContract.js  # Smart contract (Node.js)
├── config/               # Configuration files
│   ├── connection-profile/
│   │   ├── org1.json     # Org1 connection profile
│   │   ├── org2.json     # Org2 connection profile
├── network/              # Fabric network setup
│   ├── docker-compose/   # Docker setup
│   ├── scripts/          # Shell scripts for automation
└── README.md             # Project documentation


## 🛠️ Setup Instructions

### **1️⃣ Prerequisites**
Before running this project, ensure you have the following installed:
- **Node.js** (v14+ recommended)
- **Docker & Docker Compose**
- **Hyperledger Fabric binaries and samples** (`fabric-samples`)
- **Fabric CA client** (for identity management)

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### **2️⃣ Clone the Repository**
```bash
git clone https://github.com/Manufg07/Simplyfiii.git
cd Simplyfiii

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3️⃣ Set Up Hyperledger Fabric Network

cd SimplyFi
chmod +x startSimplyfiNetwork1.sh
./startSimplyfiNetwork1.sh

4️⃣ Configure Client

cd /server
npm install
cd /routes
node setupWallet.js

5️⃣ Start the REST API Server

cd server
npm install
node app.js

🛑 Network Issues

# Check running Docker containers
docker ps -a

# Restart the Hyperledger Fabric network
./stopSimplyfiNetwork.sh && ./startSimplyfiNetwork1.sh

🔑 Identity Issues

# Reimport user identities

cd server
cd routes
node setupWallet.js

# Check registered CA identities
fabric-ca-client identity list --tls.certfiles organizations/fabric-ca/organization1/ca-cert.pem

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📜 License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

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🤝 Contributing

We welcome contributions! Follow these steps to contribute:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/new-feature)
3. Commit your changes (git commit -m 'Add new feature')
4. Push to the branch (git push origin feature/new-feature)
5. Open a Pull Request

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