Dex Explorer V2 Script -

| Risk | Mitigation in V2 | |------|------------------| | Front-running | Use Flashbots Protect RPC or MEV-Share | | Sandwich attacks | Send transactions via private mempool (Eden, BloxRoute) | | High gas on mainnet | Deploy script on L2s (Arbitrum, Optimism, Base) | | Price impact | Split orders or use TWAP for large sizes | | Stale subgraph data | Fallback to direct on-chain reserve queries | 7. Deployment & Monitoring To run the script in production:

// Fetch reserve & calculate price for a token pair on a given DEX async getPoolData(dex: typeof DEXES[0], tokenA: string, tokenB: string) try const provider = this.providers.get(dex.chainId); if (!provider) return null;

// Arbitrage opportunity detection const lowest = validResults[0]; const highest = validResults[validResults.length - 1]; const profitPct = ((highest.price - lowest.price) / lowest.price) * 100; dex explorer v2 script

// Run the explorer const explorer = new DexExplorerV2(); explorer.explore().catch(console.error); a. Mempool Listener for New Pools V2 scripts subscribe to PairCreated events to instantly explore fresh liquidity before public bots.

This piece dissects a fully functional Dex Explorer V2 Script written in TypeScript/Node.js, leveraging ethers.js v6 and on-chain subgraph APIs. The V2 script is modular, consisting of five core engines: | Risk | Mitigation in V2 | |------|------------------|

if (profitPct > MIN_PROFIT_BPS / 100) console.log(`\n🚀 ARBITRAGE OPPORTUNITY: Buy on $lowest.dex @ $$lowest.price.toFixed(4) → Sell on $highest.dex @ $$highest.price.toFixed(4)`); console.log(`📈 Profit: $profitPct.toFixed(2)% before gas`); // Here you would call execution engine (Flashbots / private tx) else console.log(`\n⚡ No significant arb opportunity ($profitPct.toFixed(2)% profit).`);

// BSC const bscProvider = new ethers.JsonRpcProvider(process.env.BSC_RPC_URL); this.providers.set(56, bscProvider); this.multicalls.set(56, new Multicall(bscProvider)); This piece dissects a fully functional Dex Explorer

// DEX endpoints (Uniswap V2 style) const DEXES = [ name: "UniswapV2", router: "0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D", chainId: 1 , name: "SushiSwap", router: "0xd9e1cE17f2641f24aE83637ab66a2cca9C378B9F", chainId: 1 , name: "PancakeSwap", router: "0x10ED43C718714eb63d5aA57B78B54704E256024E", chainId: 56 , ];

class DexExplorerV2 private providers: Map<number, ethers.Provider>; private multicalls: Map<number, Multicall>;