237-combo/docs/ENVIRONMENT_SETUP_COMPLETE.md

✅ Environment Setup - Verification Complete

🎉 All Scripts Verified

All scripts have been verified to properly load environment variables from .env files.

---

✅ Scripts Checked

1. src/strat/cli.ts ✅

• ✅ Loads dotenv FIRST before any other imports
• ✅ Uses getNetwork() which lazy-loads RPC URLs from env vars
• ✅ Validates RPC URLs and shows helpful error messages

2. src/cli/cli.ts ✅

• ✅ Loads dotenv FIRST before any other imports
• ✅ Uses process.env.PRIVATE_KEY for transaction execution
• ✅ Uses RPC URLs from chain configs (which read from env)

3. scripts/test-strategy.ts ✅

• ✅ Loads dotenv FIRST before any other imports
• ✅ Reads MAINNET_RPC_URL, TEST_SCENARIO, TEST_NETWORK from env
• ✅ Validates RPC URL before proceeding
• ✅ Shows clear error messages if not configured

4. scripts/check-env.ts ✅

• ✅ Loads dotenv FIRST
• ✅ Verifies all RPC URLs are set and accessible
• ✅ Tests connections to each network
• ✅ Provides helpful feedback

5. scripts/verify-setup.ts ✅

• ✅ Loads dotenv FIRST
• ✅ Comprehensive verification of all setup components
• ✅ Checks scripts, configs, and scenarios

---

⚙️ Network Configuration

src/strat/config/networks.ts ✅

• ✅ Lazy-loads RPC URLs when getNetwork() is called
• ✅ Ensures dotenv is loaded before reading env vars
• ✅ Supports network-specific env vars (e.g., MAINNET_RPC_URL)
• ✅ Falls back to defaults if not set

config/chains/*.ts ✅

• ✅ Read process.env at module load time
• ✅ Since all entry points load dotenv FIRST, this works correctly
• ✅ Have sensible defaults as fallbacks

---

📋 Environment Variables

Required

Variable	Description	Status
MAINNET_RPC_URL	For mainnet fork testing (required for most scenarios)	✅

Optional

Variable	Description	When Needed
BASE_RPC_URL	For Base network testing	Multi-chain testing
ARBITRUM_RPC_URL	For Arbitrum testing	Multi-chain testing
OPTIMISM_RPC_URL	For Optimism testing	Multi-chain testing
POLYGON_RPC_URL	For Polygon testing	Multi-chain testing
PRIVATE_KEY	Only needed for mainnet execution (not fork testing)	Mainnet execution
TEST_SCENARIO	Override default test scenario	Custom scenarios
TEST_NETWORK	Override default test network	Multi-chain testing

---

✅ Validation

All scripts now include:

• ✅ RPC URL validation (checks for placeholders)
• ✅ Clear error messages if not configured
• ✅ Helpful suggestions (e.g., "Run 'pnpm run check:env'")
• ✅ Fallback to defaults where appropriate

---

🧪 Testing

Run these commands to verify your setup:

# 1. Check environment variables
pnpm run check:env

# 2. Verify complete setup
pnpm run verify:setup

# 3. Test with a scenario (requires valid RPC URL)
pnpm run strat:test

---

🔧 How It Works

1. Entry Point (CLI script or test script)

• 📥 Loads dotenv.config() FIRST
• 📄 This reads .env file into process.env

2. Network Configuration

• 🔗 getNetwork() is called
• ⚡ Lazy-loads RPC URLs from process.env
• ✅ Returns network config with RPC URL

3. Fork Orchestrator

• 🔌 Uses the RPC URL from network config
• 🌐 Connects to the RPC endpoint
• 🍴 Creates fork if needed

4. Validation

• ✅ Scripts validate RPC URLs before use
• 🔍 Check for placeholders like "YOUR_KEY"
• 💬 Show helpful error messages if invalid

---

🔧 Troubleshooting

If environment variables aren't loading:

1. Check .env file exists

ls -la .env

2. Verify dotenv is loaded first

• ✅ Check that import dotenv from 'dotenv' and dotenv.config() are at the top
• ✅ Before any other imports that use process.env

3. Test environment loading

node -e "require('dotenv').config(); console.log(process.env.MAINNET_RPC_URL)"

4. Run verification

pnpm run verify:setup

---

💡 Best Practices

1. Always load dotenv first

// ✅ Good
import dotenv from 'dotenv';
dotenv.config();
import { other } from './other.js';

2. Use lazy-loading for configs

// ✅ Good - lazy load
function getNetwork() {
  return { rpcUrl: process.env.MAINNET_RPC_URL || 'default' };
}

3. Validate before use

// ✅ Good - validate
if (!rpcUrl || rpcUrl.includes('YOUR_KEY')) {
  throw new Error('RPC URL not configured');
}

---

📊 Summary

Check	Status	Description
Scripts load .env files	✅	All scripts properly load .env files
RPC URL validation	✅	All scripts validate RPC URLs before use
Lazy-loading configs	✅	Network configs lazy-load to ensure env vars are available
Clear error messages	✅	Clear error messages guide users to fix issues
Verification scripts	✅	Verification scripts help diagnose problems
Documentation	✅	Documentation explains the setup process

---

🎉 Conclusion

The environment setup is complete and verified! ✅

All scripts are properly connected to .env files and handle secrets correctly. You're ready to start building DeFi strategies!

---

📚 Related Documentation

• 📖 Environment Setup Guide
• ✅ Verification Summary
• 🧪 Strategy Testing Guide