Forkchoice Ethereum Mainnet

Address Contract Verified

Address 0x7e7d5170656657650e062Ad8F78b258B9Da700F2
Balance 0.001000 ETH ($2.13)
Nonce 1
Code Size 8450 bytes
Creator 0x77E76c5b...344d at tx 0x7c11368b...e60af8
Indexed Transactions 0 (1 on-chain, 0.9% indexed)
External Etherscan · Sourcify

Contract Bytecode

8450 bytes
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Verified Source Code Full Match

Compiler: v0.8.20+commit.a1b79de6 EVM: shanghai Optimization: Yes (200 runs)
FlashloanSMAAVE.sol 393 lines 
// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.20;

// =================== CONFIRMED AAVE V3 ADDRESSES ===================
address constant AAVE_V3_MAINNET_PROVIDER = 0x2f39d218133AFaB8F2B819B1066c7E434Ad94E9e;
address constant AAVE_V3_POOL = 0x87870Bca3F3fD6335C3F4ce8392D69350B4fA4E2;

// =================== ERC20 INTERFACE ===================
interface IERC20 {
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function approve(address spender, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function decimals() external view returns (uint8);
}

// =================== DEX INTERFACE ===================
interface IUniswapV2Router {
    function swapExactTokensForTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);
}

// =================== AAWE V3 INTERFACE ===================
interface IAavePool {
    function flashLoanSimple(
        address receiverAddress,
        address asset,
        uint256 amount,
        bytes calldata params,
        uint16 referralCode
    ) external;
}

// =================== PRICE FEED INTERFACE ===================
interface AggregatorV3Interface {
    function latestRoundData() external view returns (
        uint80 roundId,
        int256 answer,
        uint256 startedAt,
        uint256 updatedAt,
        uint80 answeredInRound
    );
}

// =================== MAIN CONTRACT ===================
contract FlashLoanArbitrage {
    address public owner;
    bool public paused;
    
    // ✅ Fixed Aave V3 Pool address
    IAavePool public constant AAVE_POOL = IAavePool(AAVE_V3_POOL);
    
    // ✅ CONFIRMED: Ethereum Mainnet Token Addresses
    address public constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address public constant USDC = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
    address public constant DAI = 0x6B175474E89094C44Da98b954EedeAC495271d0F;
    address public constant USDT = 0xdAC17F958D2ee523a2206206994597C13D831ec7;
    
    // ✅ CONFIRMED: DEX Router Addresses
    address public constant UNISWAP_V2_ROUTER = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
    address public constant SUSHISWAP_ROUTER = 0xd9e1cE17f2641f24aE83637ab66a2cca9C378B9F;
    
    // ✅ CONFIRMED: Chainlink Price Feed Addresses
    address public constant ETH_USD_FEED = 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419;
    address public constant USDC_USD_FEED = 0x8fFfFfd4AfB6115b954Bd326cbe7B4BA576818f6;
    address public constant DAI_USD_FEED = 0xAed0c38402a5d19df6E4c03F4E2DceD6e29c1ee9;
    address public constant USDT_USD_FEED = 0x3E7d1eAB13ad0104d2750B8863b489D65364e32D;
    
    // Borrow limits in USD (with 8 decimal precision)
    uint256 public constant MIN_BORROW_USD = 50000 * 1e8; // $50,000 (8 decimals)
    uint256 public constant MAX_BORROW_USD = 100000 * 1e8; // $100,000 (8 decimals)
    
    // Reentrancy guard
    uint256 private _locked = 1;
    
    // =================== EVENTS ===================
    event ArbitrageExecuted(
        address indexed tokenIn,
        address indexed tokenOut,
        uint256 amount,
        uint256 profit,
        address indexed executor
    );
    
    event Withdrawal(address indexed token, uint256 amount, address indexed to);
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    
    // =================== MODIFIERS ===================
    modifier onlyOwner() {
        require(msg.sender == owner, "Only owner");
        _;
    }
    
    modifier whenNotPaused() {
        require(!paused, "Contract paused");
        _;
    }
    
    modifier nonReentrant() {
        require(_locked == 1, "Reentrancy detected");
        _locked = 2;
        _;
        _locked = 1;
    }
    
    // =================== CONSTRUCTOR ===================
    constructor() {
        owner = msg.sender;
    }
    
    // =================== MAIN FUNCTIONS ===================
    
    /**
     * @dev Execute arbitrage with flash loan and USD borrow limits
     * This matches your Executor.js call signature
     */
    function executeArbitrage(
        address token0,
        uint256 amount,
        address routerA,
        address routerB,
        address token1
    ) external onlyOwner whenNotPaused nonReentrant returns (bool) {
        // Basic validation
        require(_isSupportedToken(token0), "Token0 not supported");
        require(_isSupportedToken(token1), "Token1 not supported");
        require(token0 != token1, "Tokens must be different");
        require(amount > 0, "Amount must be > 0");
        require(routerA == UNISWAP_V2_ROUTER || routerA == SUSHISWAP_ROUTER, "Invalid routerA");
        require(routerB == UNISWAP_V2_ROUTER || routerB == SUSHISWAP_ROUTER, "Invalid routerB");
        
        // Check borrow limits in USD
        _checkBorrowLimits(token0, amount);
        
        bytes memory params = abi.encode(token0, token1, routerA, routerB, msg.sender);
        
        // Request flash loan from Aave V3
        AAVE_POOL.flashLoanSimple(
            address(this),
            token0,
            amount,
            params,
            0
        );
        
        return true;
    }
    
    /**
     * @dev Aave V3 flash loan callback - STANDALONE FUNCTION, NO INHERITANCE
     */
    function executeOperation(
        address asset,
        uint256 amount,
        uint256 premium,
        address initiator,
        bytes calldata params
    ) external nonReentrant returns (bool) {
        require(msg.sender == address(AAVE_POOL), "Only Aave pool");
        require(initiator == address(this), "Invalid initiator");
        
        (address token0, address token1, address routerA, address routerB, address executor) = 
            abi.decode(params, (address, address, address, address, address));
        
        require(asset == token0, "Token mismatch");
        
        // Execute arbitrage
        _executeArbitrage(token0, token1, amount, premium, routerA, routerB, executor);
        
        return true;
    }
    
    // =================== INTERNAL FUNCTIONS ===================
    
    /**
     * @dev Check if borrow amount is within USD limits
     */
    function _checkBorrowLimits(address token, uint256 amount) internal view {
        uint256 usdValue = _getUSDValue(token, amount);
        
        // Check minimum borrow ($50,000 USD)
        require(usdValue >= MIN_BORROW_USD, "Borrow amount below $50,000 USD minimum");
        
        // Check maximum borrow ($100,000 USD)
        require(usdValue <= MAX_BORROW_USD, "Borrow amount above $100,000 USD maximum");
    }
    
    /**
     * @dev Get USD value of token amount using Chainlink price feeds
     */
    function _getUSDValue(address token, uint256 amount) internal view returns (uint256) {
        // Get token decimals
        uint8 tokenDecimals = IERC20(token).decimals();
        
        // Get price feed for token
        address priceFeed = _getPriceFeedForToken(token);
        
        // Get price from Chainlink (with 8 decimals)
        (, int256 price, , , ) = AggregatorV3Interface(priceFeed).latestRoundData();
        require(price > 0, "Invalid price from Chainlink");
        
        // Convert token amount to USD value (8 decimals)
        return (amount * uint256(price)) / (10**tokenDecimals);
    }
    
    /**
     * @dev Get Chainlink price feed address for token
     */
    function _getPriceFeedForToken(address token) internal pure returns (address) {
        if (token == WETH) return ETH_USD_FEED;
        if (token == USDC) return USDC_USD_FEED;
        if (token == DAI) return DAI_USD_FEED;
        if (token == USDT) return USDT_USD_FEED;
        revert("No price feed for token");
    }
    
    /**
     * @dev Execute the arbitrage
     */
    function _executeArbitrage(
        address token0,
        address token1,
        uint256 amount,
        uint256 premium,
        address routerA,
        address routerB,
        address executor
    ) internal {
        // Approve and perform first swap
        IERC20(token0).approve(routerA, amount);
        _swap(token0, token1, amount, routerA);
        
        // Get amount received from first swap
        uint256 received1 = IERC20(token1).balanceOf(address(this));
        require(received1 > 0, "First swap failed");
        
        // Approve and perform second swap
        IERC20(token1).approve(routerB, received1);
        _swap(token1, token0, received1, routerB);
        
        // Calculate profit and repay
        uint256 finalBalance = IERC20(token0).balanceOf(address(this));
        uint256 repayAmount = amount + premium;
        require(finalBalance >= repayAmount, "Cannot repay flash loan");
        
        uint256 profit = finalBalance - repayAmount;
        
        // Approve repayment to Aave
        IERC20(token0).approve(address(AAVE_POOL), repayAmount);
        
        // Send profit to executor if any
        if (profit > 0) {
            IERC20(token0).transfer(executor, profit);
        }
        
        emit ArbitrageExecuted(token0, token1, amount, profit, executor);
    }
    
    /**
     * @dev Execute token swap
     */
    function _swap(
        address fromToken,
        address toToken,
        uint256 amount,
        address router
    ) internal {
        address[] memory path = new address[](2);
        path[0] = fromToken;
        path[1] = toToken;
        
        IUniswapV2Router(router).swapExactTokensForTokens(
            amount,
            1,
            path,
            address(this),
            block.timestamp + 300
        );
    }
    
    /**
     * @dev Check if token is supported
     */
    function _isSupportedToken(address token) internal pure returns (bool) {
        return token == WETH || token == USDC || token == DAI || token == USDT;
    }
    
    // =================== ADMIN FUNCTIONS ===================
    
    function pause() external onlyOwner {
        paused = true;
    }
    
    function unpause() external onlyOwner {
        paused = false;
    }
    
    function withdrawToken(address token, uint256 amount) external onlyOwner nonReentrant {
        IERC20(token).transfer(msg.sender, amount);
        emit Withdrawal(token, amount, msg.sender);
    }
    
    function withdrawETH(uint256 amount) external onlyOwner nonReentrant {
        payable(msg.sender).transfer(amount);
        emit Withdrawal(address(0), amount, msg.sender);
    }
    
    function transferOwnership(address newOwner) external onlyOwner {
        require(newOwner != address(0), "Invalid new owner");
        emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
    }
    
    // =================== VIEW FUNCTIONS ===================
    
    /**
     * @dev Check if borrow amount is within limits - VIEW FUNCTION
     */
    function checkBorrowLimits(address token, uint256 amount) external view returns (bool, string memory) {
        uint256 usdValue = _getUSDValue(token, amount);
        
        if (usdValue < MIN_BORROW_USD) {
            return (false, "Below $50,000 minimum");
        }
        
        if (usdValue > MAX_BORROW_USD) {
            return (false, "Above $100,000 maximum");
        }
        
        return (true, "Within limits");
    }
    
    /**
     * @dev Get current USD value of token amount
     */
    function getUSDValue(address token, uint256 amount) external view returns (uint256) {
        return _getUSDValue(token, amount);
    }
    
    /**
     * @dev Get token price in USD (8 decimals)
     */
    function getTokenPriceUSD(address token) external view returns (uint256) {
        address priceFeed = _getPriceFeedForToken(token);
        (, int256 price, , , ) = AggregatorV3Interface(priceFeed).latestRoundData();
        return uint256(price);
    }
    
    /**
     * @dev Calculate minimum token amount for $50,000 USD
     */
    function getMinBorrowAmount(address token) external view returns (uint256) {
        address priceFeed = _getPriceFeedForToken(token);
        (, int256 priceInt, , , ) = AggregatorV3Interface(priceFeed).latestRoundData();
        uint256 price = uint256(priceInt);
        uint8 decimals = IERC20(token).decimals();
        
        return (MIN_BORROW_USD * (10**decimals)) / price;
    }
    
    /**
     * @dev Calculate maximum token amount for $100,000 USD
     */
    function getMaxBorrowAmount(address token) external view returns (uint256) {
        address priceFeed = _getPriceFeedForToken(token);
        (, int256 priceInt, , , ) = AggregatorV3Interface(priceFeed).latestRoundData();
        uint256 price = uint256(priceInt);
        uint8 decimals = IERC20(token).decimals();
        
        return (MAX_BORROW_USD * (10**decimals)) / price;
    }
    
    function isTokenSupported(address token) external pure returns (bool) {
        return _isSupportedToken(token);
    }
    
    function getBalance(address token) external view returns (uint256) {
        return IERC20(token).balanceOf(address(this));
    }
    
    function getETHBalance() external view returns (uint256) {
        return address(this).balance;
    }
    
    // =================== FALLBACK FUNCTIONS ===================
    
    receive() external payable {}
}

Read Contract

AAVE_POOL 0x08a01675 → address
DAI 0xe0bab4c4 → address
DAI_USD_FEED 0x8bdcdb93 → address
ETH_USD_FEED 0x94d8572a → address
MAX_BORROW_USD 0x3e1bdd14 → uint256
MIN_BORROW_USD 0x5c2b2af3 → uint256
SUSHISWAP_ROUTER 0x277754ed → address
UNISWAP_V2_ROUTER 0xa82ed9ec → address
USDC 0x89a30271 → address
USDC_USD_FEED 0x43656f11 → address
USDT 0xc54e44eb → address
USDT_USD_FEED 0x449de5f1 → address
WETH 0xad5c4648 → address
checkBorrowLimits 0x4d400959 → bool, string
getBalance 0xf8b2cb4f → uint256
getETHBalance 0x6e947298 → uint256
getMaxBorrowAmount 0x4b79cb0f → uint256
getMinBorrowAmount 0x07b0e2fe → uint256
getTokenPriceUSD 0x2a2cef0a → uint256
getUSDValue 0xfa76dcf2 → uint256
isTokenSupported 0x75151b63 → bool
owner 0x8da5cb5b → address
paused 0x5c975abb → bool

Write Contract 7 functions

These functions modify contract state and require a wallet transaction to execute.

executeArbitrage 0xe441d7ec
address token0
uint256 amount
address routerA
address routerB
address token1
returns: bool
executeOperation 0x1b11d0ff
address asset
uint256 amount
uint256 premium
address initiator
bytes params
returns: bool
pause 0x8456cb59
No parameters
transferOwnership 0xf2fde38b
address newOwner
unpause 0x3f4ba83a
No parameters
withdrawETH 0xf14210a6
uint256 amount
withdrawToken 0x9e281a98
address token
uint256 amount
Transactions Internal Txs Token Transfers Events

Recent Transactions

This address has 1 on-chain transactions, but only 0.9% of the chain is indexed. Transactions will appear as indexing progresses. View on Etherscan →