1773daffe7
CRITICAL FIXES: 1. Multi-hop arbitrage amount=0 bug - Added missing config values: - min_scan_amount_wei: 10000000000000000 (0.01 ETH minimum) - max_scan_amount_wei: 9000000000000000000 (9 ETH, fits int64) - min_significant_swap_size: 10000000000000000 (0.01 ETH) 2. WebSocket 403 Forbidden error - Documented WSS endpoint issue: - Chainstack WSS endpoint returns 403 Forbidden - Updated ws_endpoint comment to explain using empty string for HTTP fallback ROOT CAUSE ANALYSIS: - The ArbitrageService.calculateScanAmount() was defaulting to 0 because config.MinScanAmountWei was uninitialized - This caused all multi-hop arbitrage scans to use amount=0, preventing any opportunities from being detected (803 occurrences in logs) VERIFICATION: - Container rebuilt and restarted successfully - No 403 Forbidden errors in logs ✓ - No amount=0 errors in logs ✓ - Bot processing swaps normally ✓ DOCUMENTATION: - Added comprehensive log analysis (logs/LOG_ANALYSIS_20251109.md) - Added detailed error analysis (logs/ERROR_ANALYSIS_20251109.md) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
99 lines
2.9 KiB
YAML
99 lines
2.9 KiB
YAML
# MEV Bot Development Configuration
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# Arbitrum node configuration
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arbitrum:
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# RPC endpoint for Arbitrum node (using public endpoint for development)
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rpc_endpoint: "https://arb1.arbitrum.io/rpc"
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# WebSocket endpoint for Arbitrum node - CRITICAL FIX: Use HTTP instead of WSS to avoid 403
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# The Chainstack WSS endpoint in .env returns 403 Forbidden
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# Using empty string will make bot use RPC endpoint for both HTTP and WS
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ws_endpoint: ""
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# Chain ID for Arbitrum (42161 for mainnet)
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chain_id: 42161
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# Rate limiting configuration for RPC endpoint
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rate_limit:
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# Maximum requests per second (adjust based on your provider's limits)
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requests_per_second: 5
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# Maximum concurrent requests
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max_concurrent: 3
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# Burst size for rate limiting
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burst: 10
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# Fallback RPC endpoints
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fallback_endpoints:
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- url: "https://arbitrum-rpc.publicnode.com"
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rate_limit:
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requests_per_second: 3
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max_concurrent: 2
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burst: 5
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# Bot configuration
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bot:
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# Enable or disable the bot
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enabled: true
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# Polling interval in seconds
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polling_interval: 5
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# Minimum profit threshold in USD
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min_profit_threshold: 5.0
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# Gas price multiplier (for faster transactions)
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gas_price_multiplier: 1.2
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# Maximum number of concurrent workers for processing
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max_workers: 5
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# Buffer size for channels
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channel_buffer_size: 50
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# Timeout for RPC calls in seconds
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rpc_timeout: 30
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# Uniswap configuration
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uniswap:
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# Factory contract address
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factory_address: "0x1F98431c8aD98523631AE4a59f267346ea31F984"
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# Position manager contract address
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position_manager_address: "0xC36442b4a4522E871399CD717aBDD847Ab11FE88"
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# Supported fee tiers
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fee_tiers:
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- 500 # 0.05%
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- 3000 # 0.3%
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- 10000 # 1%
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# Cache configuration for pool data
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cache:
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# Enable or disable caching
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enabled: true
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# Cache expiration time in seconds
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expiration: 300
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# Maximum cache size
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max_size: 1000
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# Logging configuration
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log:
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# Log level (debug, info, warn, error)
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level: "debug"
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# Log format (json, text)
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format: "text"
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# Log file path (empty for stdout)
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file: ""
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# Database configuration
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database:
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# Database file path
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file: "data/mev-bot.db"
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# Maximum number of open connections
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max_open_connections: 5
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# Maximum number of idle connections
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max_idle_connections: 2
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# Arbitrage configuration
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arbitrage:
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# Enable or disable arbitrage service
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enabled: true
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# Minimum profit threshold in USD
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min_profit: 1.0
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# Maximum position size in USD
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max_position_size: 1000.0
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# Gas price limit in gwei
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max_gas_price: 100
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# Minimum swap size to trigger arbitrage detection (in wei)
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min_significant_swap_size: 10000000000000000 # 0.01 ETH
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# Minimum scan amount (in wei) - CRITICAL FIX for amount=0 bug
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min_scan_amount_wei: 10000000000000000 # 0.01 ETH minimum
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# Maximum scan amount (in wei) - fits in int64 (max 9.2e18)
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max_scan_amount_wei: 9000000000000000000 # 9 ETH maximum (fits int64)
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