Dex Explorer V2 Script -

// Main exploration: fetch prices from all DEXes and find best route async explore() console.log( \n🔍 Dex Explorer V2 – Scanning $DEXES.length DEXes...\n ); const results = await Promise.all( DEXES.map(dex => this.getPoolData(dex, TOKEN_A, TOKEN_B)) );

// Multi-hop route optimizer (V2 feature) async findBestRoute(amountIn: string) // Uses 0x API or Uniswap Universal Router for optimal routing const response = await axios.get( https://api.0x.org/swap/v1/quote , params: sellToken: TOKEN_A, buyToken: TOKEN_B, sellAmount: amountIn, slippagePercentage: 0.01, , ); console.log("Best route via 0x:", response.data); return response.data;

1. Introduction In the fast-paced world of decentralized finance (DeFi), information asymmetry is the primary source of profit. A Dex Explorer V2 Script is an advanced automation tool designed to scan, analyze, and interact with multiple decentralized exchanges (DEXs) simultaneously. Unlike its predecessor (V1), which focused on basic price fetching and routing, V2 introduces real-time mempool monitoring , multi-chain support , fuzz testing for vulnerable liquidity pools , and autonomous arbitrage execution .

// 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 , ]; dex explorer v2 script

// BSC const bscProvider = new ethers.JsonRpcProvider(process.env.BSC_RPC_URL); this.providers.set(56, bscProvider); this.multicalls.set(56, new Multicall(bscProvider));

private initProviders() // Ethereum mainnet const ethProvider = new ethers.JsonRpcProvider(process.env.ETH_RPC_URL); this.providers.set(1, ethProvider); this.multicalls.set(1, new Multicall(ethProvider));

function executeOperation(address[] calldata assets, uint256[] calldata amounts, ...) external // 1. Borrow WETH from Aave // 2. Arbitrage between DEXes // 3. Repay + keep profit // Main exploration: fetch prices from all DEXes

provider.on("PairCreated", async (token0, token1, pair, log) => console.log(`New pool detected: $pair`); // Run getPoolData instantly ); Using LayerZero or Wormhole relays, V2 scripts compare prices across chains and execute atomic swaps via bridges. c. Flash Loan Integration V2 scripts integrate with Aave V3 or dYdX flash loans to execute zero-capital arbitrage:

// Sort by price (lowest price for token A in terms of token B) validResults.sort((a, b) => a.price - b.price);

console.table(validResults.map(r => ( DEX: r.dex, Chain: r.chainId === 1 ? "Ethereum" : "BNB Chain", Price: `$$r.price.toFixed(4) USDC per WETH`, Liquidity: `$(Number(r.reserve0) / 1e18).toFixed(2) WETH / $(Number(r.reserve1) / 1e6).toFixed(2) USDC` ))); Unlike its predecessor (V1), which focused on basic

// Compute pair address (CREATE2 for V2) const pairAddress = ethers.getCreate2Address( dex.router, "0x96e8ac4277198ff8b6f785478aa9a39f403cb768dd02cbee326c3e7da348845f", ethers.solidityPackedKeccak256(["address", "address"], [tokenA, tokenB]) ); const pairContract = new ethers.Contract( pairAddress, ["function getReserves() view returns (uint112, uint112, uint32)"], provider ); const [reserve0, reserve1] = await pairContract.getReserves(); const price = Number(reserve1) / Number(reserve0); return dex: dex.name, chainId: dex.chainId, price, reserve0, reserve1, pairAddress ; catch (error) return null;

constructor() this.providers = new Map(); this.multicalls = new Map(); this.initProviders();

// 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;

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: