Smart Contract Deployment

Deterministic Deployment (CREATE2)

npm run deploy:deterministic:<network>

Example: npm run deploy:deterministic:bsc-testnet

Deployment Verification Steps

1. Pre-Deployment Checks

   • Verify .env configuration contains necessary private keys and RPC URLs
   • Check hardhat.config.ts for correct network configuration
   • Ensure contracts are compiled: npm run compile
   • Verify sufficient native token balance for gas fees

2. Execute Deployment

   • Run appropriate deployment script
   • Monitor transaction hashes and contract addresses
   • Save deployment artifacts to deployments.json

3. Post-Deployment Verification

   • Run verification script: npm run verify:deployment
   • Test deployed contracts: npm run test:bsc (for BSC testnet)
   • Verify contract on block explorer (optional)

Troubleshooting

Common Issues

1. Insufficient Funds: Check wallet balance on target network
2. Network RPC Issues: Verify RPC URL in hardhat.config.ts
3. Gas Price Too Low: Adjust gas settings in deployment script
4. Nonce Too Low: Clear pending transactions or wait for confirmation

Deployment File Locations

• Deployment scripts: scripts/deploy.ts, scripts/deploy-deterministic.ts
• Contract verification: scripts/verify-deployment.ts
• Network config: hardhat.config.ts
• Deployment records: deployments.json

Best Practices

1. Always test on testnet before mainnet deployment
2. Use deterministic deployment for consistent addresses across chains
3. Verify contract source code on block explorers after deployment
4. Keep deployment records updated in deployments.json
5. Monitor gas prices to optimize deployment costs

Example Workflow

# 1. Compile contracts
npm run compile

# 2. Deploy to testnet
npm run deploy:deterministic:bsc-testnet

# 3. Verify deployment
npm run verify:deployment

# 4. Test deployed contracts
npm run test:bsc

# 5. If successful, deploy to mainnet
npm run deploy:deterministic:bsc