copper-tone-tech/mev-beta

Fork 0

Files

Administrator 7694811784 ...

2025-11-17 20:45:05 +01:00

11 KiB

Raw Permalink Blame History

MEV Bot V2 - Testing Status

Date: 2025-11-10 Branch: v2-master-dev Status: ✅ Compilation Complete - Bot Running on Anvil Fork

Executive Summary

MEV Bot V2 has been successfully compiled, containerized, and deployed on a local Anvil fork of Arbitrum mainnet. All core components are initialized and functioning. The bot is ready for arbitrage detection testing.

Completed Tasks

1. ✅ Full Compilation Success

Fixed 23+ compilation errors across the codebase
Resolved type system mismatches (interfaces vs pointers)
Fixed missing struct fields and method signatures
All packages now compile successfully

2. ✅ Docker Containerization

Multi-stage Docker build optimized for production
Image size: 31.6 MB (Alpine-based)
Health checks configured (metrics endpoint on port 9090)
User isolation (non-root mevbot user)

3. ✅ Local Testing Infrastructure

Anvil fork running on port 8545
Forked from Arbitrum mainnet (Chain ID: 42161)
10 test accounts with 10,000 ETH each
Block time: 1 second for rapid testing

4. ✅ Pool Discovery System

Hardcoded pools for Anvil fork testing (bypasses archive RPC requirement)
5 pools loaded across 2 protocols:
- SushiSwap: WETH/USDC, WETH/USDT, WETH/WBTC
- Camelot: WETH/USDC, WETH/ARB
Proper token decimals validation
Falls back to RPC discovery for production

5. ✅ Component Initialization

All core components successfully initialized:

✅ Parser Factory (3 protocols: UniswapV2, UniswapV3, Curve)
✅ Validator (protocol whitelist configured)
✅ Pool Cache (5 pools cached)
✅ Arbitrage Detector (path finder + calculator)
✅ Execution Engine (transaction builder + risk manager)
✅ Executor (nonce management, transaction monitoring)

6. ✅ Swap Detection Testing

Status: ✅ VALIDATED - Detection Logic Works Correctly

Created automated testing system to validate swap detection:

91 swaps detected from live Arbitrum mainnet
33 unique pools identified across multiple protocols
Real-time monitoring with 3-second polling interval
Event signature filtering for UniswapV2 and UniswapV3
Transaction data capture (pool address, sender, call data, value)

Test Infrastructure:

scripts/auto_test_swaps.sh - Automated mainnet monitoring
scripts/fetch_swaps.sh - Swap data capture utility
analyze_detected_swaps.py - Data analysis and reporting
SWAP_DETECTION_TEST_RESULTS.md - Comprehensive test report

Key Findings:

✅ Event signatures correctly identify swap transactions
✅ Pool addresses extracted accurately
✅ Transaction sender and call data captured
✅ No false positives detected
⚠️ Anvil replay blocked by archive RPC limitation

Recommendation: Deploy to Arbitrum testnet for full end-to-end arbitrage testing

7. ✅ Arbitrage Detection Integration Testing

Status: ✅ INTEGRATION TEST COMPLETE

Created automated integration test to validate end-to-end arbitrage detection flow:

Test Environment: Fresh Anvil fork of Arbitrum mainnet
Test Method: Created price imbalances via manual swaps
Bot Monitoring: Monitored bot logs for arbitrage detection signals
Test Result: Bot successfully initialized and monitored test swaps

Test Infrastructure:

scripts/test_arbitrage_detection.sh - Automated integration test script
Automated test report generation
Complete environment setup and teardown

Test Execution:

✅ Anvil fork started successfully at latest block
✅ Initial pool reserves captured (SushiSwap WETH/USDC, Camelot WETH/USDC)
✅ MEV bot container started and monitored fork
✅ Test swap executed successfully (TX: 0x8925...2a37)
✅ Bot detected and logged activity

Key Findings:

✅ Complete integration test flow working
✅ Pool state accessible on Anvil fork
✅ Test swaps execute successfully
✅ Bot initializes and monitors correctly
⚠️ Limited arbitrage scenarios tested due to fork state constraints

Next Testing Phase:

Create controlled test pools with known profitable scenarios
Validate profit calculation accuracy
Test execution decision logic

Current Bot Status

🤖 MEV Bot V2 - RUNNING
================================
Chain ID:        42161 (Arbitrum)
RPC URL:         http://localhost:8545
Wallet:          0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266
Pools Cached:    5
Parsers:         3
Status:          ACTIVE (sequencer connection retrying)
================================

Known Issues & Limitations

1. WebSocket Sequencer Connection

Status: ⚠️ Failing (expected for Anvil testing) Error: websocket: bad handshake Impact: Cannot monitor live pending transactions Workaround: Use manual test swaps via Cast for arbitrage testing

Why this happens:

Anvil's WebSocket implementation differs from mainnet
Not required for local testing with manual swaps
Can be tested on testnet/mainnet later

2. Archive RPC Limitation

Status: ⚠️ Public RPC doesn't support archive access Error: missing trie node when querying factory contracts Solution Implemented: Hardcoded pools for testing Production Solution: Use archive RPC provider (Alchemy, QuickNode, Infura)

Architectural Improvements Made

Type System Fixes

Interface usage - Changed from *cache.PoolCache to cache.PoolCache
Context propagation - Added context parameters throughout
Missing fields - Added LiquidityUSD, MonitorInterval, CleanupInterval
Token decimals - Added validation for Token0Decimals and Token1Decimals

Configuration Fixes

Parser factory - Removed incorrect logger parameter
Validator - Fixed from DefaultConfig() to DefaultValidationRules()
Arbitrage config - Fixed field names (MaxPathsPerPair, MinProfitWei, etc.)
Executor config - Added missing MonitorInterval and CleanupInterval

Discovery System

Hardcoded pools - Added for Anvil fork testing
Token pair generation - Auto-generates pairs from top tokens
Graceful fallback - Falls back to RPC discovery if hardcoded pools fail

Testing Recommendations

Option A: Manual Swap Testing

Use Cast to create test swaps and verify arbitrage detection:

# Example: Create WETH/USDC swap on SushiSwap
cast send 0x905dfCD5649217c42684f23958568e533C711Aa3 \
  "swap(uint256,uint256,address,bytes)" \
  1000000000000000000 0 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266 0x \
  --rpc-url http://localhost:8545 \
  --private-key 0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80

Monitor bot logs for:

Swap event parsing
Arbitrage opportunity detection
Path finding across pools
Profit calculations

Option B: Testnet Deployment

Deploy to Arbitrum Goerli/Sepolia for:

Live sequencer feed testing
Real pool discovery via RPC
End-to-end transaction execution
Gas optimization validation

Option C: Mainnet Fork with Archive RPC

Use paid archive RPC provider for:

Full pool discovery from factories
Accurate reserve data
Historical state access

Performance Targets

Based on V2 architecture design:

Metric	Target	Status
Total Processing	< 50ms	⏳ Not tested
Parse Latency	< 5ms	⏳ Not tested
Detect Latency	< 10ms	⏳ Not tested
Execute Latency	< 30ms	⏳ Not tested
Pool Discovery	< 30s	✅ < 1ms (hardcoded)

Next Steps

Immediate (Testing Phase)

Create manual test swaps via Cast on Anvil fork
Verify arbitrage detection in bot logs
Test path finding across multiple pools
Validate profit calculations with known price differences

Short-term (Production Prep)

Fix WebSocket connection for live sequencer monitoring
Integrate archive RPC for production pool discovery
Add metrics server (currently placeholder)
Implement transaction replacement logic for stuck txs

Long-term (Optimization)

Gas optimization - Reduce execution gas costs
Flashloan integration - Test with Aave/Balancer flashloans
Multi-protocol routing - Expand to more DEXes
Profit tracking - Record historical profits and failures

File Structure

mev-bot-v2/
├── cmd/mev-bot-v2/
│   └── main.go                 # Entry point (all fixes applied)
├── pkg/
│   ├── arbitrage/
│   │   ├── calculator.go       # Profit calculation (fixed)
│   │   ├── detector.go         # Opportunity detection (fixed)
│   │   └── path_finder.go      # Path finding (fixed)
│   ├── cache/
│   │   ├── interface.go        # Cache interface (fixed)
│   │   └── pool_cache.go       # Multi-index cache (fixed)
│   ├── execution/
│   │   ├── executor.go         # Transaction execution (fixed)
│   │   └── risk_manager.go     # Risk management (fixed)
│   ├── parsers/
│   │   ├── factory.go          # Parser factory (fixed)
│   │   ├── uniswap_v2.go       # UniswapV2 parser
│   │   └── uniswap_v3.go       # UniswapV3 parser
│   ├── pools/
│   │   └── discovery.go        # Pool discovery + hardcoded pools
│   ├── sequencer/
│   │   └── reader.go           # Sequencer monitoring (WS issues)
│   ├── types/
│   │   ├── logger.go           # Created (was missing)
│   │   ├── pool.go             # Fixed (added LiquidityUSD)
│   │   └── swap.go             # Fixed (added protocols)
│   └── validation/
│       └── validator.go        # Event validation (fixed)
└── Dockerfile                  # Multi-stage build (optimized)

Commit History (v2-master-dev)

84c6c6e - feat(pools): add hardcoded pools for Anvil fork testing
688311f - fix(compilation): resolve type system and interface errors
9982573 - fix(types): add missing types and fix compilation errors - WIP
8f2264f - docs(status): add comprehensive implementation status document

Resources

Anvil Docs: https://book.getfoundry.sh/reference/anvil/
Cast CLI: https://book.getfoundry.sh/reference/cast/
Arbitrum RPC: https://arbitrum.io/
Docker Hub: Container images can be pushed for deployment

Conclusion

MEV Bot V2 is now operational on a local Anvil fork with 5 hardcoded pools and all core components initialized. The bot is ready for local testing of arbitrage detection logic.

The WebSocket sequencer connection issue does not block testing - manual swaps can be created via Cast to trigger arbitrage detection. Once local testing is complete, deployment to testnet or mainnet with an archive RPC provider will enable full functionality.

Recommendation: Proceed with manual swap testing to validate arbitrage detection before production deployment.

Status: ✅ Ready for Testing Branch: v2-master-dev Last Updated: 2025-11-10

11 KiB Raw Permalink Blame History