AgroSafe

A decentralized solution for farmer registration and produce verification using blockchain.

Project Structure

• agrosafe-contracts/: Smart contracts built with Foundry
• agrosafe-frontend/: React + TypeScript frontend with Wagmi and Reown AppKit

Prerequisites

• Node.js 18+ and npm
• Foundry (for contract deployment)
• Git

Setup & Deployment

1. Smart Contracts

cd agrosafe-contracts

# Install dependencies
forge install

# Compile contracts
forge build

# Run tests
forge test

# Deploy to local Anvil (for testing)
anvil  # In one terminal
forge script script/Deploy.s.sol:Deploy --rpc-url http://localhost:8545 --broadcast  # In another

2. Frontend

cd agrosafe-frontend

# Install dependencies
npm install

# Create .env.local with your configuration
cp .env.local.example .env.local

# Edit .env.local with your contract address and Reown Project ID
# VITE_AGROSAFE_ADDRESS=<deployed-contract-address>
# VITE_REOWN_PROJECT_ID=<your-reown-project-id>

# Start development server
npm run dev

# Build for production
npm run build

Environment Variables

Frontend (.env.local)

• VITE_AGROSAFE_ADDRESS: The deployed AgroSafe contract address
• VITE_REOWN_PROJECT_ID: Your Reown/WalletConnect project ID from https://cloud.reown.com/

Key Fixes Applied

1. Solidity Contract: Fixed Ownable constructor call for OpenZeppelin v5 compatibility
2. Frontend TypeScript:
   • Consolidated viem imports to avoid duplication
   • Fixed walletClient hook usage (wagmi v2 pattern with .data property)
   • Added proper environment variable type definitions
   • Updated WagmiConfig to WagmiProvider (wagmi v2 API)
3. Environment Setup: Created .env.example files for configuration guidance

Deployment Checklist

• Smart contract deployed and verified on target chain
• Contract address added to frontend .env.local
• Reown Project ID configured
• Frontend builds without errors (npm run build)
• Test farmer registration and produce recording flows