Files
mev-beta/scripts/setup-local-fork.sh
Administrator 65c1005d91 feat(testing): add Anvil fork local testing infrastructure
Complete local testing setup with Anvil fork of Arbitrum mainnet:

Infrastructure:
- Docker Compose orchestration (Anvil, MEV Bot, Prometheus, Grafana)
- Anvil fork configuration with 1-second blocks
- Multi-stage Dockerfile for optimized builds
- Health checks and auto-restart policies

Configuration:
- Comprehensive .env.example with all parameters
- Prometheus metrics collection setup
- Grafana datasource provisioning
- .gitignore to prevent committing secrets

Testing Scripts:
- setup-local-fork.sh: Initialize fork and fund test wallet
- create-test-swap.sh: Generate test swaps for bot detection
- Both scripts include validation and helpful output

Integration Components:
- pkg/sequencer/reader.go: WebSocket reader for pending transactions
  - Worker pool pattern (10 workers)
  - <50ms processing target
  - Front-running capability
  - Auto-reconnection with exponential backoff

- pkg/pools/discovery.go: Pool discovery service
  - UniswapV2-style pools (SushiSwap, Camelot)
  - UniswapV3 pools (multiple fee tiers)
  - Factory contract queries
  - Liquidity filtering

Documentation:
- TESTING.md: Complete testing guide
  - Quick start instructions
  - Testing scenarios
  - Monitoring and debugging
  - Performance benchmarks
  - Troubleshooting guide

This enables safe local testing without deploying to public testnet,
using real Arbitrum mainnet state forked locally with Anvil.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-10 18:52:56 +01:00

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#!/bin/bash
set -e
# MEV Bot V2 - Local Fork Setup Script
# This script sets up the Anvil fork with test liquidity and scenarios
echo "🚀 Setting up MEV Bot V2 local testing environment..."
# Colors for output
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
RED='\033[0;31m'
NC='\033[0m' # No Color
# Check if .env exists
if [ ! -f .env ]; then
echo -e "${YELLOW}⚠️ No .env file found. Copying from .env.example...${NC}"
cp .env.example .env
echo -e "${RED}⚠️ IMPORTANT: Edit .env and set your PRIVATE_KEY before continuing!${NC}"
exit 1
fi
# Load environment variables
source .env
# Check if private key is set
if [ "$PRIVATE_KEY" == "0000000000000000000000000000000000000000000000000000000000000000" ]; then
echo -e "${RED}❌ Error: PRIVATE_KEY not set in .env file${NC}"
echo -e "${YELLOW}Please set a test private key in .env${NC}"
exit 1
fi
echo -e "${GREEN}✅ Configuration loaded${NC}"
# Start Anvil fork
echo "🔧 Starting Anvil fork of Arbitrum..."
docker-compose up -d anvil
# Wait for Anvil to be ready
echo "⏳ Waiting for Anvil to be ready..."
max_attempts=30
attempt=0
while [ $attempt -lt $max_attempts ]; do
if docker-compose exec -T anvil cast block-number --rpc-url http://localhost:8545 &>/dev/null; then
echo -e "${GREEN}✅ Anvil is ready${NC}"
break
fi
attempt=$((attempt + 1))
sleep 2
done
if [ $attempt -eq $max_attempts ]; then
echo -e "${RED}❌ Anvil failed to start${NC}"
exit 1
fi
# Get current block number
BLOCK_NUMBER=$(docker-compose exec -T anvil cast block-number --rpc-url http://localhost:8545)
echo -e "${GREEN}📦 Forked at block: $BLOCK_NUMBER${NC}"
# Get wallet address from private key
WALLET_ADDRESS=$(docker-compose exec -T anvil cast wallet address $PRIVATE_KEY)
echo -e "${GREEN}💼 Wallet address: $WALLET_ADDRESS${NC}"
# Fund the wallet with test ETH
echo "💰 Funding wallet with 100 test ETH..."
docker-compose exec -T anvil cast send --value 100ether --private-key 0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80 $WALLET_ADDRESS --rpc-url http://localhost:8545
# Get wallet balance
BALANCE=$(docker-compose exec -T anvil cast balance $WALLET_ADDRESS --rpc-url http://localhost:8545)
echo -e "${GREEN}💵 Wallet balance: $(echo "scale=4; $BALANCE / 1000000000000000000" | bc) ETH${NC}"
echo ""
echo -e "${GREEN}✨ Local fork setup complete!${NC}"
echo ""
echo "Next steps:"
echo " 1. Start the full stack: docker-compose up -d"
echo " 2. View logs: docker-compose logs -f mev-bot"
echo " 3. View metrics: http://localhost:9090"
echo " 4. View Grafana: http://localhost:3000 (admin/admin)"
echo ""
echo "Testing commands:"
echo " - Check Anvil: docker-compose exec anvil cast block-number --rpc-url http://localhost:8545"
echo " - Get balance: docker-compose exec anvil cast balance $WALLET_ADDRESS --rpc-url http://localhost:8545"
echo " - Create test swap: ./scripts/create-test-swap.sh"
echo ""