Overview
ETH Balance
0 ETH
Eth Value
$0.00More Info
Private Name Tags
ContractCreator
Latest 25 from a total of 1,590 transactions
Transaction Hash |
Method
|
Block
|
From
|
To
|
|||||
---|---|---|---|---|---|---|---|---|---|
Flash Withdraw E... | 20339714 | 22 hrs ago | IN | 0 ETH | 0.00329054 | ||||
Flash Withdraw E... | 20339692 | 22 hrs ago | IN | 0 ETH | 0.00353192 | ||||
Flash Withdraw E... | 20338992 | 24 hrs ago | IN | 0 ETH | 0.00384781 | ||||
Flash Withdraw E... | 20322155 | 3 days ago | IN | 0 ETH | 0.00313493 | ||||
Flash Withdraw E... | 20309929 | 5 days ago | IN | 0 ETH | 0.00157198 | ||||
Flash Withdraw E... | 20309917 | 5 days ago | IN | 0 ETH | 0.00162235 | ||||
Flash Withdraw E... | 20309906 | 5 days ago | IN | 0 ETH | 0.00165868 | ||||
Flash Withdraw E... | 20301848 | 6 days ago | IN | 0 ETH | 0.00153235 | ||||
Flash Withdraw E... | 20299832 | 6 days ago | IN | 0 ETH | 0.00133621 | ||||
Flash Withdraw E... | 20297856 | 6 days ago | IN | 0 ETH | 0.00136176 | ||||
Flash Withdraw E... | 20287456 | 8 days ago | IN | 0 ETH | 0.00187369 | ||||
Flash Withdraw E... | 20275408 | 9 days ago | IN | 0 ETH | 0.00236229 | ||||
Flash Withdraw E... | 20270541 | 10 days ago | IN | 0 ETH | 0.00251881 | ||||
Flash Withdraw E... | 20267862 | 10 days ago | IN | 0 ETH | 0.00043602 | ||||
Flash Withdraw E... | 20258599 | 12 days ago | IN | 0 ETH | 0.00205377 | ||||
Flash Withdraw E... | 20257290 | 12 days ago | IN | 0 ETH | 0.0011196 | ||||
Flash Withdraw E... | 20256993 | 12 days ago | IN | 0 ETH | 0.00088427 | ||||
Flash Withdraw E... | 20256726 | 12 days ago | IN | 0 ETH | 0.00077751 | ||||
Flash Withdraw E... | 20247477 | 13 days ago | IN | 0 ETH | 0.0013598 | ||||
Flash Withdraw E... | 20246859 | 13 days ago | IN | 0 ETH | 0.0017469 | ||||
Flash Withdraw E... | 20246617 | 13 days ago | IN | 0 ETH | 0.00193991 | ||||
Flash Withdraw E... | 20246071 | 14 days ago | IN | 0 ETH | 0.00173664 | ||||
Flash Withdraw E... | 20237112 | 15 days ago | IN | 0 ETH | 0.00533692 | ||||
Flash Withdraw E... | 20237016 | 15 days ago | IN | 0 ETH | 0.00493037 | ||||
Flash Withdraw E... | 20219548 | 17 days ago | IN | 0 ETH | 0.00462702 |
Latest 25 internal transactions (View All)
Advanced mode:
Parent Transaction Hash | Block | From | To | |||
---|---|---|---|---|---|---|
20339714 | 22 hrs ago | 0.15226428 ETH | ||||
20339714 | 22 hrs ago | 0.15226428 ETH | ||||
20339692 | 22 hrs ago | 0.07601693 ETH | ||||
20339692 | 22 hrs ago | 0.07601693 ETH | ||||
20338992 | 24 hrs ago | 0.07111502 ETH | ||||
20338992 | 24 hrs ago | 0.07111502 ETH | ||||
20322155 | 3 days ago | 0.1046229 ETH | ||||
20322155 | 3 days ago | 0.1046229 ETH | ||||
20309929 | 5 days ago | 0.07801002 ETH | ||||
20309929 | 5 days ago | 0.07801002 ETH | ||||
20309917 | 5 days ago | 0.15658467 ETH | ||||
20309917 | 5 days ago | 0.15658467 ETH | ||||
20309906 | 5 days ago | 0.14537487 ETH | ||||
20309906 | 5 days ago | 0.14537487 ETH | ||||
20301848 | 6 days ago | 0.08497997 ETH | ||||
20301848 | 6 days ago | 0.08497997 ETH | ||||
20299832 | 6 days ago | 0.01583446 ETH | ||||
20299832 | 6 days ago | 0.01583446 ETH | ||||
20297856 | 6 days ago | 0.09723328 ETH | ||||
20297856 | 6 days ago | 0.09723328 ETH | ||||
20287456 | 8 days ago | 0.00797542 ETH | ||||
20287456 | 8 days ago | 0.00797542 ETH | ||||
20275408 | 9 days ago | 0.00863998 ETH | ||||
20275408 | 9 days ago | 0.00863998 ETH | ||||
20270541 | 10 days ago | 0.05254451 ETH |
Loading...
Loading
Contract Name:
CrabHelper
Compiler Version
v0.7.6+commit.7338295f
Optimization Enabled:
Yes with 800 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
//SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.7.6; import {ICrabStrategyV2} from "../interfaces/ICrabStrategyV2.sol"; import {IWETH9} from "../interfaces/IWETH9.sol"; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/utils/ReentrancyGuard.sol"; import {Address} from "@openzeppelin/contracts/utils/Address.sol"; import {StrategySwap} from "./helper/StrategySwap.sol"; /** * @dev CrabHelper contract * @notice Contract for Crab helper functions * @author Opyn team */ contract CrabHelper is StrategySwap, ReentrancyGuard { using Address for address payable; address public immutable crab; address public immutable weth; event FlashDepositERC20( address indexed depositor, address depositedERC20, uint256 depositedAmount, uint256 depositedEthAmount, uint256 crabAmount, uint256 returnedEth ); event FlashWithdrawERC20( address indexed withdrawer, address withdrawnERC20, uint256 withdrawnAmount, uint256 withdrawnEthAmount, uint256 crabAmount ); /** * @notice constructor * @param _crab address of crabV2 contract * @param _swapRouter address of Uniswap swap router */ constructor(address _crab, address _swapRouter) StrategySwap(_swapRouter) { require(_crab != address(0), "Invalid crab address"); crab = _crab; weth = ICrabStrategyV2(_crab).weth(); } /** * @notice allows user to flash deposit into crab from an aribtrary ERC20 * @param _ethToDeposit amount of ETH to deposit * @param _amountIn amount of ERC20 token to swap for weth * @param _minEthToGet min amount of ETH to receive in the swap * @param _erc20Fee pool fee for transfer ERC20/eth pool (3000 = 30bps) * @param _wPowerPerpFee pool fee for wPowerPerp/eth pool (3000 = 30bps) * @param _tokenIn ERC20 token to pay */ function flashDepositERC20( uint256 _ethToDeposit, uint256 _amountIn, uint256 _minEthToGet, uint24 _erc20Fee, uint24 _wPowerPerpFee, address _tokenIn ) external nonReentrant { _swapExactInputSingle(_tokenIn, weth, msg.sender, address(this), _amountIn, _minEthToGet, _erc20Fee); IWETH9(weth).withdraw(IWETH9(weth).balanceOf(address(this))); ICrabStrategyV2(crab).flashDeposit{value: address(this).balance}(_ethToDeposit, _wPowerPerpFee); uint256 crabAmount = IERC20(crab).balanceOf(address(this)); emit FlashDepositERC20(msg.sender, _tokenIn, _amountIn, _ethToDeposit, crabAmount, address(this).balance); IERC20(crab).transfer(msg.sender, crabAmount); if (address(this).balance > 0) { payable(msg.sender).sendValue(address(this).balance); } } /** * @notice allows user to flash withdraw from crab to an aribtrary ERC20 * @param _crabAmount amount of crab shares to withdraw * @param _maxEthToPay max eth to pay in swap for wPowerPerp * @param _tokenOut ERC20 token to receive * @param _minAmountOut min amount of ERC20 to receive * @param _erc20Fee pool fee for transfer ERC20/eth pool (3000 = 30bps) * @param _wPowerPerpFee pool fee for wPowerPerp/eth pool (3000 = 30bps) */ function flashWithdrawERC20( uint256 _crabAmount, uint256 _maxEthToPay, address _tokenOut, uint256 _minAmountOut, uint24 _erc20Fee, uint24 _wPowerPerpFee ) external nonReentrant { IERC20(crab).transferFrom(msg.sender, address(this), _crabAmount); ICrabStrategyV2(crab).flashWithdraw(_crabAmount, _maxEthToPay, _wPowerPerpFee); uint256 ethBalance = address(this).balance; IWETH9(weth).deposit{value: ethBalance}(); uint256 tokenReceived = _swapExactInputSingle( weth, _tokenOut, address(this), msg.sender, ethBalance, _minAmountOut, _erc20Fee ); emit FlashWithdrawERC20(msg.sender, _tokenOut, tokenReceived, ethBalance, _crabAmount); } /** * @notice receive function to allow ETH transfer to this contract */ receive() external payable { require(msg.sender == weth || msg.sender == crab, "Cannot receive eth"); } }
// SPDX-License-Identifier: MIT pragma solidity =0.7.6; pragma abicoder v2; interface ICrabStrategyV2 { function wPowerPerp() external view returns (address); function weth() external view returns (address); function flashDeposit(uint256 _ethToDeposit, uint24 _poolFee) external payable; function flashWithdraw( uint256 _crabAmount, uint256 _maxEthToPay, uint24 _poolFee ) external; }
// SPDX-License-Identifier: MIT pragma solidity 0.7.6; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; interface IWETH9 is IERC20 { function deposit() external payable; function withdraw(uint256 wad) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.7.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
// SPDX-License-Identifier: MIT pragma solidity ^0.7.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor () { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and make it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.7.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (bool success, ) = recipient.call{ value: amount }(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain`call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: GPL-2.0-or-later pragma solidity =0.7.6; pragma abicoder v2; import "@uniswap/v3-periphery/contracts/interfaces/ISwapRouter.sol"; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; contract StrategySwap { ISwapRouter public immutable swapRouter; constructor(address _swapRouter) { require(_swapRouter != address(0), "invalid swap router address"); swapRouter = ISwapRouter(_swapRouter); } /** * @notice swapExactInputSingle swaps a given amount of tokenIn for a maximum possible amount of tokenOut * @dev The calling address must approve this contract to spend at least `amountIn` worth of its tokenIn for this function to succeed. * @param _tokenIn token address to sell * @param _tokenOut token address to receive * @param _from from which user we are selling * @param _to Recipient to get the tokens * @param _amountIn Exact amount to sell * @param _minAmountOut Minimum amount to be paid * @param _fee pool fee * @return amountOut The amount of WETH9 received. */ function _swapExactInputSingle( address _tokenIn, address _tokenOut, address _from, address _to, uint256 _amountIn, uint256 _minAmountOut, uint24 _fee ) internal returns (uint256 amountOut) { // _from must approve this contract // Transfer the specified amount of tokenIn to this contract. IERC20(_tokenIn).transferFrom(_from, address(this), _amountIn); // Approve the router to spend tokenIn. IERC20(_tokenIn).approve(address(swapRouter), _amountIn); // We also set the sqrtPriceLimitx96 to be 0 to ensure we swap our exact input amount. ISwapRouter.ExactInputSingleParams memory params = ISwapRouter.ExactInputSingleParams({ tokenIn: _tokenIn, tokenOut: _tokenOut, fee: _fee, recipient: _to, deadline: block.timestamp, amountIn: _amountIn, amountOutMinimum: _minAmountOut, sqrtPriceLimitX96: 0 }); // The call to `exactInputSingle` executes the swap. amountOut = swapRouter.exactInputSingle(params); } }
// SPDX-License-Identifier: GPL-2.0-or-later pragma solidity >=0.7.5; pragma abicoder v2; import '@uniswap/v3-core/contracts/interfaces/callback/IUniswapV3SwapCallback.sol'; /// @title Router token swapping functionality /// @notice Functions for swapping tokens via Uniswap V3 interface ISwapRouter is IUniswapV3SwapCallback { struct ExactInputSingleParams { address tokenIn; address tokenOut; uint24 fee; address recipient; uint256 deadline; uint256 amountIn; uint256 amountOutMinimum; uint160 sqrtPriceLimitX96; } /// @notice Swaps `amountIn` of one token for as much as possible of another token /// @param params The parameters necessary for the swap, encoded as `ExactInputSingleParams` in calldata /// @return amountOut The amount of the received token function exactInputSingle(ExactInputSingleParams calldata params) external payable returns (uint256 amountOut); struct ExactInputParams { bytes path; address recipient; uint256 deadline; uint256 amountIn; uint256 amountOutMinimum; } /// @notice Swaps `amountIn` of one token for as much as possible of another along the specified path /// @param params The parameters necessary for the multi-hop swap, encoded as `ExactInputParams` in calldata /// @return amountOut The amount of the received token function exactInput(ExactInputParams calldata params) external payable returns (uint256 amountOut); struct ExactOutputSingleParams { address tokenIn; address tokenOut; uint24 fee; address recipient; uint256 deadline; uint256 amountOut; uint256 amountInMaximum; uint160 sqrtPriceLimitX96; } /// @notice Swaps as little as possible of one token for `amountOut` of another token /// @param params The parameters necessary for the swap, encoded as `ExactOutputSingleParams` in calldata /// @return amountIn The amount of the input token function exactOutputSingle(ExactOutputSingleParams calldata params) external payable returns (uint256 amountIn); struct ExactOutputParams { bytes path; address recipient; uint256 deadline; uint256 amountOut; uint256 amountInMaximum; } /// @notice Swaps as little as possible of one token for `amountOut` of another along the specified path (reversed) /// @param params The parameters necessary for the multi-hop swap, encoded as `ExactOutputParams` in calldata /// @return amountIn The amount of the input token function exactOutput(ExactOutputParams calldata params) external payable returns (uint256 amountIn); }
// SPDX-License-Identifier: GPL-2.0-or-later pragma solidity >=0.5.0; /// @title Callback for IUniswapV3PoolActions#swap /// @notice Any contract that calls IUniswapV3PoolActions#swap must implement this interface interface IUniswapV3SwapCallback { /// @notice Called to `msg.sender` after executing a swap via IUniswapV3Pool#swap. /// @dev In the implementation you must pay the pool tokens owed for the swap. /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory. /// amount0Delta and amount1Delta can both be 0 if no tokens were swapped. /// @param amount0Delta The amount of token0 that was sent (negative) or must be received (positive) by the pool by /// the end of the swap. If positive, the callback must send that amount of token0 to the pool. /// @param amount1Delta The amount of token1 that was sent (negative) or must be received (positive) by the pool by /// the end of the swap. If positive, the callback must send that amount of token1 to the pool. /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call function uniswapV3SwapCallback( int256 amount0Delta, int256 amount1Delta, bytes calldata data ) external; }
{ "optimizer": { "enabled": true, "runs": 800 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "metadata": { "useLiteralContent": true }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_crab","type":"address"},{"internalType":"address","name":"_swapRouter","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"depositor","type":"address"},{"indexed":false,"internalType":"address","name":"depositedERC20","type":"address"},{"indexed":false,"internalType":"uint256","name":"depositedAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"depositedEthAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"crabAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"returnedEth","type":"uint256"}],"name":"FlashDepositERC20","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"withdrawer","type":"address"},{"indexed":false,"internalType":"address","name":"withdrawnERC20","type":"address"},{"indexed":false,"internalType":"uint256","name":"withdrawnAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"withdrawnEthAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"crabAmount","type":"uint256"}],"name":"FlashWithdrawERC20","type":"event"},{"inputs":[],"name":"crab","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_ethToDeposit","type":"uint256"},{"internalType":"uint256","name":"_amountIn","type":"uint256"},{"internalType":"uint256","name":"_minEthToGet","type":"uint256"},{"internalType":"uint24","name":"_erc20Fee","type":"uint24"},{"internalType":"uint24","name":"_wPowerPerpFee","type":"uint24"},{"internalType":"address","name":"_tokenIn","type":"address"}],"name":"flashDepositERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_crabAmount","type":"uint256"},{"internalType":"uint256","name":"_maxEthToPay","type":"uint256"},{"internalType":"address","name":"_tokenOut","type":"address"},{"internalType":"uint256","name":"_minAmountOut","type":"uint256"},{"internalType":"uint24","name":"_erc20Fee","type":"uint24"},{"internalType":"uint24","name":"_wPowerPerpFee","type":"uint24"}],"name":"flashWithdrawERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"swapRouter","outputs":[{"internalType":"contract ISwapRouter","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"weth","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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
Deployed Bytecode
0x60806040526004361061005e5760003560e01c80634285512d116100435780634285512d146101a3578063bca4f628146101b8578063c31c9c071461021357610115565b806302c6600c1461011a5780633fc8cef31461017257610115565b3661011557336001600160a01b037f000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc21614806100c25750336001600160a01b037f0000000000000000000000003b960e47784150f5a63777201ee2b15253d713e816145b610113576040805162461bcd60e51b815260206004820152601260248201527f43616e6e6f742072656365697665206574680000000000000000000000000000604482015290519081900360640190fd5b005b600080fd5b34801561012657600080fd5b50610113600480360360c081101561013d57600080fd5b508035906020810135906001600160a01b036040820135169060608101359062ffffff608082013581169160a0013516610228565b34801561017e57600080fd5b506101876104ca565b604080516001600160a01b039092168252519081900360200190f35b3480156101af57600080fd5b506101876104ee565b3480156101c457600080fd5b50610113600480360360c08110156101db57600080fd5b50803590602081013590604081013590606081013562ffffff9081169160808101359091169060a001356001600160a01b0316610512565b34801561021f57600080fd5b506101876108e2565b60026000541415610280576040805162461bcd60e51b815260206004820152601f60248201527f5265656e7472616e637947756172643a207265656e7472616e742063616c6c00604482015290519081900360640190fd5b60026000908155604080516323b872dd60e01b81523360048201523060248201526044810189905290516001600160a01b037f0000000000000000000000003b960e47784150f5a63777201ee2b15253d713e816926323b872dd92606480820193602093909283900390910190829087803b1580156102fe57600080fd5b505af1158015610312573d6000803e3d6000fd5b505050506040513d602081101561032857600080fd5b505060408051630b52b7ff60e41b8152600481018890526024810187905262ffffff8316604482015290516001600160a01b037f0000000000000000000000003b960e47784150f5a63777201ee2b15253d713e8169163b52b7ff091606480830192600092919082900301818387803b1580156103a457600080fd5b505af11580156103b8573d6000803e3d6000fd5b5050505060004790507f000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc26001600160a01b031663d0e30db0826040518263ffffffff1660e01b81526004016000604051808303818588803b15801561041c57600080fd5b505af1158015610430573d6000803e3d6000fd5b505050505060006104667f000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2873033868a8a610906565b604080516001600160a01b038916815260208101839052808201859052606081018b9052905191925033917f614f663be393aac8fd2c2993040a634f5b013b3d5f418cc59ad013e96eef53f99181900360800190a250506001600055505050505050565b7f000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc281565b7f0000000000000000000000003b960e47784150f5a63777201ee2b15253d713e881565b6002600054141561056a576040805162461bcd60e51b815260206004820152601f60248201527f5265656e7472616e637947756172643a207265656e7472616e742063616c6c00604482015290519081900360640190fd5b600260005561059e817f000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc23330898989610906565b50604080516370a0823160e01b815230600482015290516001600160a01b037f000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc21691632e1a7d4d9183916370a08231916024808301926020929190829003018186803b15801561060d57600080fd5b505afa158015610621573d6000803e3d6000fd5b505050506040513d602081101561063757600080fd5b5051604080517fffffffff0000000000000000000000000000000000000000000000000000000060e085901b168152600481019290925251602480830192600092919082900301818387803b15801561068f57600080fd5b505af11580156106a3573d6000803e3d6000fd5b505050507f0000000000000000000000003b960e47784150f5a63777201ee2b15253d713e86001600160a01b031663fc5b73ff4788856040518463ffffffff1660e01b8152600401808381526020018262ffffff168152602001925050506000604051808303818588803b15801561071a57600080fd5b505af115801561072e573d6000803e3d6000fd5b505050505060007f0000000000000000000000003b960e47784150f5a63777201ee2b15253d713e86001600160a01b03166370a08231306040518263ffffffff1660e01b815260040180826001600160a01b0316815260200191505060206040518083038186803b1580156107a257600080fd5b505afa1580156107b6573d6000803e3d6000fd5b505050506040513d60208110156107cc57600080fd5b5051604080516001600160a01b0385168152602081018990528082018a905260608101839052476080820152905191925033917fc723e34ef5da33ff97116afe67fb4330d3189467330363a49eb6c9d2fd762a8c9181900360a00190a26040805163a9059cbb60e01b81523360048201526024810183905290516001600160a01b037f0000000000000000000000003b960e47784150f5a63777201ee2b15253d713e8169163a9059cbb9160448083019260209291908290030181600087803b15801561089857600080fd5b505af11580156108ac573d6000803e3d6000fd5b505050506040513d60208110156108c257600080fd5b505047156108d4576108d43347610b1e565b505060016000555050505050565b7f000000000000000000000000e592427a0aece92de3edee1f18e0157c0586156481565b6040516323b872dd60e01b81526000906001600160a01b038916906323b872dd9061093990899030908990600401610c47565b602060405180830381600087803b15801561095357600080fd5b505af1158015610967573d6000803e3d6000fd5b505050506040513d601f19601f8201168201806040525081019061098b9190610c08565b5060405163095ea7b360e01b81526001600160a01b0389169063095ea7b3906109da907f000000000000000000000000e592427a0aece92de3edee1f18e0157c05861564908890600401610c6b565b602060405180830381600087803b1580156109f457600080fd5b505af1158015610a08573d6000803e3d6000fd5b505050506040513d601f19601f82011682018060405250810190610a2c9190610c08565b5060408051610100810182526001600160a01b03808b168252898116602083015262ffffff851682840152878116606083015242608083015260a0820187905260c08201869052600060e0830152915163414bf38960e01b815290917f000000000000000000000000e592427a0aece92de3edee1f18e0157c05861564169063414bf38990610abf908490600401610c84565b602060405180830381600087803b158015610ad957600080fd5b505af1158015610aed573d6000803e3d6000fd5b505050506040513d601f19601f82011682018060405250810190610b119190610c2f565b9998505050505050505050565b80471015610b73576040805162461bcd60e51b815260206004820152601d60248201527f416464726573733a20696e73756666696369656e742062616c616e6365000000604482015290519081900360640190fd5b6040516000906001600160a01b0384169083908381818185875af1925050503d8060008114610bbe576040519150601f19603f3d011682016040523d82523d6000602084013e610bc3565b606091505b5050905080610c035760405162461bcd60e51b815260040180806020018281038252603a815260200180610cf4603a913960400191505060405180910390fd5b505050565b600060208284031215610c19578081fd5b81518015158114610c28578182fd5b9392505050565b600060208284031215610c40578081fd5b5051919050565b6001600160a01b039384168152919092166020820152604081019190915260600190565b6001600160a01b03929092168252602082015260400190565b6000610100820190506001600160a01b0380845116835280602085015116602084015262ffffff60408501511660408401528060608501511660608401526080840151608084015260a084015160a084015260c084015160c08401528060e08501511660e0840152509291505056fe416464726573733a20756e61626c6520746f2073656e642076616c75652c20726563697069656e74206d61792068617665207265766572746564a2646970667358221220fcd43e471a4f1be2f1f1ccf4169e3d06484dd0cc15e022ffbfc5207a7fbbdf4664736f6c63430007060033
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000003b960e47784150f5a63777201ee2b15253d713e8000000000000000000000000e592427a0aece92de3edee1f18e0157c05861564
-----Decoded View---------------
Arg [0] : _crab (address): 0x3B960E47784150F5a63777201ee2B15253D713e8
Arg [1] : _swapRouter (address): 0xE592427A0AEce92De3Edee1F18E0157C05861564
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000003b960e47784150f5a63777201ee2b15253d713e8
Arg [1] : 000000000000000000000000e592427a0aece92de3edee1f18e0157c05861564
Loading...
Loading
Loading...
Loading
Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|
Loading...
Loading
[ Download: CSV Export ]
[ Download: CSV Export ]
A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.