.env.example

# Blockchain Configuration
POLYGON_MUMBAI_RPC=https://rpc-mumbai.maticvigil.com
PRIVATE_KEY=0x0000000000000000000000000000000000000000000000000000000000000000

# Contract Address (after deployment)
NEXT_PUBLIC_CONTRACT_ADDRESS=0x0000000000000000000000000000000000000000

# Polygonscan API Key (for contract verification)
POLYGONSCAN_API_KEY=your_polygonscan_api_key_here

# Gas Reporting
REPORT_GAS=true
COINMARKETCAP_API_KEY=your_coinmarketcap_api_key_here

# IPFS Configuration
IPFS_PROJECT_ID=your_ipfs_project_id
IPFS_API_KEY=your_ipfs_api_key
IPFS_API_SECRET=your_ipfs_api_secret

# Database (optional - for off-chain data)
DATABASE_URL=postgresql://user:password@localhost:5432/chainfair

# Frontend
NEXT_PUBLIC_IPFS_GATEWAY=https://ipfs.io/ipfs/