DADI - Decentralized Auction for Device Interaction

A Flutter web application that enables decentralized auctions for device control using Ethereum smart contracts.

Prerequisites

• Flutter (latest stable version)
• Node.js (v16 or later)
• MetaMask browser extension
• Git

Setup

1. Clone the repository:

git clone https://github.com/MuffinsThaCat/DADI.git
cd DADI

2. Install Node.js dependencies:

npm install

3. Install Flutter dependencies:

flutter pub get

4. Start a local Hardhat node:

npx hardhat node

5. In a new terminal, deploy the smart contract:

npx hardhat run --network localhost scripts/deploy.js

6. Configure MetaMask:
   • Add a new network with:
     • Network Name: Hardhat Local
     • RPC URL: http://127.0.0.1:8545
     • Chain ID: 31337
   • Import a test account using the private key from the Hardhat node output

Running the App

1. Start the Flutter web app:

flutter run -d web-server --web-port=3001

2. Open your browser and navigate to:

http://localhost:3001

3. Connect MetaMask when prompted by the app

Features

• Create auctions for device control
• Place bids on active auctions
• View auction history and status
• Control devices during won time slots
• Real-time updates using blockchain events

Development

• Smart Contract: contracts/DADIAuction.sol
• Flutter App: lib/ directory
  • Screens: lib/screens/
  • Services: lib/services/
  • Contract Bindings: lib/contracts/

Testing

Run smart contract tests:

npx hardhat test

Run Flutter tests:

flutter test