Contract 0x962f92cee9a559d705f8999c92752ebcdd550616

 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0xa6480687e4aeab848f20fc08cb684592a5d38470e413ddca74df587332e4c961Swap Tokens200506412022-08-12 2:31:11171 days 15 hrs ago0x99148753bc916fd5c4b84a71375aa18d64e6683b IN  0x962f92cee9a559d705f8999c92752ebcdd5506160.0008354954561 ETH0.000204714098 ETH
0x5b6b811ceecf6cecfebe691955b9b9411110cb8fcd3d942c193770c458d956470x60e06040180502542022-07-19 21:40:42194 days 20 hrs agoStargate Finance: Deployer IN  Create: WidgetSwap0 ETH0.005134034355 ETH
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Latest 25 internal transaction
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0x02f83758f17e6905f431cf6c0fac43a5e7f40528a78cda9d9e1b461bdf85ca07566967782023-01-30 18:08:0711 secs ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0xb9b8d0be948f62c8fbeed3668e6b31cafc5165ecb133047935519559e03eca79566953132023-01-30 18:01:007 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x5f2c4526c555b15decc6ea590f04e853cea7028ec9a94310b2a863f9d29dfb5d566837132023-01-30 17:03:431 hr 4 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x290a0d13c2978c0938feaf2a2ca58c824451d31698bcb2743b083ee8fd2a882a566825072023-01-30 16:57:351 hr 10 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x2a5077c26307ac47a276cebc6b9d4a170784966c28b7537f740d8e6e93901c59566802572023-01-30 16:46:551 hr 21 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0xdf1e7a14e0a677af55ba650eb7a5490eea269735b15ba326a51911985f6e0d1d566749132023-01-30 16:21:521 hr 46 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0xf8750d438961f43a3c4695cfbdab308fe715311ae9fe76b9916b9df7a46cb72a566746012023-01-30 16:20:281 hr 47 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x6d589b1f4d10bb86545bde0cc78abdc667d5c357bdad46fa98a49769ce607ec2566699112023-01-30 15:56:592 hrs 11 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x4d3dc9d264b8e3dbd4b87c06de0bec419a942a3d1176e968f3bc41c0a4ec1439566633882023-01-30 15:25:142 hrs 43 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x864abd188e4a2e077038d6a72d09cce2aaca7c05a8ef65192f2fb9e61dddf2c8566574272023-01-30 14:56:553 hrs 11 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0xc917198123b6ff844efa3a531430b4bb69c53935d94e05f17d7928e8b4357617566566262023-01-30 14:53:163 hrs 15 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x4145d89666521b6e3437c0a9525631028ca58378a4ebb9a12a93b0440d66ceb0566519992023-01-30 14:31:223 hrs 36 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x4d32b6ece911b416c7575dd69a27e5039c3263717cac53041b9beeb8a0a80f2e566475512023-01-30 14:10:263 hrs 57 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x04b0dc403eb039da514f52235b3f2636431a66ac3659dd86b7541cd623163703566255472023-01-30 12:26:085 hrs 42 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x0699deff8c3e11094933ef41201dd3a58aaf9ec0d407265e7b0d3958e0ec8e20566147292023-01-30 11:33:556 hrs 34 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x0d6115e41568f37f7a78b80b72fa24705ea6b84d33dc8827646d4fd1f76ac055566131802023-01-30 11:26:036 hrs 42 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x21dc9dac54c09dff2e05141d5749f4bc510c30c9dd6be1fb4dcbe90bfa76e402566104652023-01-30 11:12:536 hrs 55 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x913de2ef53c186935ed11a6b307a28f135cbf4ab5e10a4388fd301901e7e3801566040072023-01-30 10:41:447 hrs 26 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x150e3e90f119342ad3c9b9fb8663d49acadf6774a89953905e69c0788b71674c565953322023-01-30 9:58:268 hrs 9 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x774504e950bd90831591940c670457aadcf1821d2334477b4d9ea68750e549a5565754812023-01-30 8:22:359 hrs 45 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x9f61940c5aece6d8aa96df5a46d73c929e2b09930b330e6e13c283b6cfed8878565133212023-01-30 2:38:5015 hrs 29 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x3a14d44c9ef798070addc8d45542333e9e69b9bfbaf2fa6c53fc3e575df925e4564792492023-01-29 23:06:0419 hrs 2 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0xca313c2f0d73dab077120d6fa47b5214f4d9cc48e459e66a3ae31d7021faee71564608092023-01-29 21:17:1020 hrs 51 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x2db87882d64b7bd68463e42c1ff8422b8d7984899e4f70df0ed789d1a2295252564595572023-01-29 21:09:5920 hrs 58 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
0x3b7d2c6c5ff332f8d1a36d6d04f2a040687ef0342c3640822b7ef59e4e158210564587352023-01-29 21:05:2221 hrs 2 mins ago 0x53b08dbd70327b7ba3b7886fc9987bc985d27262 0x962f92cee9a559d705f8999c92752ebcdd5506160 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
WidgetSwap

Compiler Version
v0.8.4+commit.c7e474f2

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 10 : WidgetSwap.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.4;
pragma abicoder v2;

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "../interfaces/IStargateRouter.sol";
import "../interfaces/IStargateRouterETH.sol";
import "../interfaces/IStargateFactory.sol";
import "../interfaces/IStargateWidget.sol";

contract WidgetSwap is ReentrancyGuard, IStargateWidget {
    using SafeERC20 for IERC20;

    IStargateRouter public immutable stargateRouter;
    IStargateRouterETH public immutable stargateRouterETH;
    IStargateFactory public immutable stargateFactory;
    uint256 public constant TENTH_BPS_DENOMINATOR = 100000;

    constructor(address _stargateRouter, address _stargateRouterETH, address _stargateFactory) {
        stargateRouter = IStargateRouter(_stargateRouter);
        stargateRouterETH = IStargateRouterETH(_stargateRouterETH);
        stargateFactory = IStargateFactory(_stargateFactory);
    }

    // allow anyone to emit this msg alongside their stargate tx so they can get credited for their referral
    // to get credit this event must be emitted in the same tx as a stargate swap event
    function partnerSwap(bytes2 _partnerId) external override {
        emit PartnerSwap(_partnerId);
    }

    function swapTokens(
        uint16 _dstChainId,
        uint16 _srcPoolId,
        uint16 _dstPoolId,
        uint256 _amountLD,
        uint256 _minAmountLD,
        IStargateRouter.lzTxObj calldata _lzTxParams,
        bytes calldata _to,
        bytes2 _partnerId,
        FeeObj calldata _feeObj
    ) external override nonReentrant payable {
        uint256 widgetFee = _getAndPayWidgetFee(_srcPoolId, _amountLD, _feeObj);

        stargateRouter.swap{value:msg.value}(
            _dstChainId,
            _srcPoolId,
            _dstPoolId,
            payable(msg.sender),
            _amountLD - widgetFee,
            _minAmountLD,
            _lzTxParams,
            _to,
            "0x"
        );

        emit WidgetSwapped(_partnerId, _feeObj.tenthBps, widgetFee);
    }

    function swapETH(
        uint16 _dstChainId,
        uint256 _amountLD,
        uint256 _minAmountLD,
        bytes calldata _to,
        bytes2 _partnerId,
        FeeObj calldata _feeObj
    ) external override nonReentrant payable {
        // allows us to deploy same contract on non eth chains
        require(address(stargateRouterETH) != address(0x0), "WidgetSwap: func not available");

        uint256 widgetFee = _getAndPayWidgetFeeETH(_amountLD, _feeObj);

        // "value:" contains the amount of eth to swap and the stargate/layerZero fees, minus the widget fee
        stargateRouterETH.swapETH{value:msg.value - widgetFee}(
            _dstChainId,
            payable(msg.sender),
            _to,
            _amountLD - widgetFee,
            _minAmountLD
        );

        emit WidgetSwapped(_partnerId, _feeObj.tenthBps, widgetFee);
    }

    function _getAndPayWidgetFee(
        uint16 _srcPoolId,
        uint256 _amountLD,
        FeeObj calldata _feeObj
    ) internal returns (uint256 widgetFee) {
        // corresponding token to the poolId
        address token = stargateFactory.getPool(_srcPoolId).token();

        // move all the tokens to this contract
        IERC20(token).safeTransferFrom(msg.sender, address(this), _amountLD);

        // calculate the widgetFee
        widgetFee = _amountLD * _feeObj.tenthBps / TENTH_BPS_DENOMINATOR;

        // pay the widget fee
        IERC20(token).safeTransfer(_feeObj.feeCollector, widgetFee);

        // allow stargateRouter to spend the tokens to be transferred
        IERC20(token).approve(address(stargateRouter), _amountLD - widgetFee);

        return widgetFee;
    }

    function _getAndPayWidgetFeeETH(
        uint256 _amountLD,
        FeeObj calldata _feeObj
    ) internal returns (uint256 widgetFee) {
        // calculate the widgetFee
        widgetFee = _amountLD * _feeObj.tenthBps / TENTH_BPS_DENOMINATOR;
        require(msg.value > widgetFee, "WidgetSwap: not enough eth for widgetFee");

        // verify theres enough eth to cover the amount to swap
        require(msg.value - widgetFee > _amountLD, "WidgetSwap: not enough eth for swap");

        // pay the widget fee
        (bool success, ) = _feeObj.feeCollector.call{value: widgetFee}("");
        require(success, "WidgetSwap: failed to transfer widgetFee");

        return widgetFee;
    }
}

File 2 of 10 : ReentrancyGuard.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @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 making 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;
    }
}

File 3 of 10 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 4 of 10 : IStargateRouter.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.4;
pragma abicoder v2;

interface IStargateRouter {
    struct lzTxObj {
        uint256 dstGasForCall;
        uint256 dstNativeAmount;
        bytes dstNativeAddr;
    }

    function addLiquidity(
        uint256 _poolId,
        uint256 _amountLD,
        address _to
    ) external;

    function swap(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress,
        uint256 _amountLD,
        uint256 _minAmountLD,
        lzTxObj memory _lzTxParams,
        bytes calldata _to,
        bytes calldata _payload
    ) external payable;

    function redeemRemote(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress,
        uint256 _amountLP,
        uint256 _minAmountLD,
        bytes calldata _to,
        lzTxObj memory _lzTxParams
    ) external payable;

    function instantRedeemLocal(
        uint16 _srcPoolId,
        uint256 _amountLP,
        address _to
    ) external returns (uint256);

    function redeemLocal(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress,
        uint256 _amountLP,
        bytes calldata _to,
        lzTxObj memory _lzTxParams
    ) external payable;

    function sendCredits(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress
    ) external payable;

    function quoteLayerZeroFee(
        uint16 _dstChainId,
        uint8 _functionType,
        bytes calldata _toAddress,
        bytes calldata _transferAndCallPayload,
        lzTxObj memory _lzTxParams
    ) external view returns (uint256, uint256);
}

File 5 of 10 : IStargateRouterETH.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.4;
pragma abicoder v2;

interface IStargateRouterETH {
    function addLiquidityETH() external payable;

    function swapETH(
        uint16 dstChainId,
        address payable refundAddress,
        bytes calldata to,
        uint256 amountLD,
        uint256 minAmountLD
    ) external payable;
}

File 6 of 10 : IStargateFactory.sol
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.4;

import "./IStargatePool.sol";

interface IStargateFactory {
    function getPool(uint256 _srcPoolId) external returns (IStargatePool);
}

File 7 of 10 : IStargateWidget.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.4;
pragma abicoder v2;

import "../interfaces/IStargateRouter.sol";

interface IStargateWidget {
    struct FeeObj {
        uint256 tenthBps; // bps is to an extra decimal place
        address feeCollector;
    }

    event WidgetSwapped(bytes2 indexed partnerId, uint256 tenthBps, uint256 widgetFee);
    event PartnerSwap(bytes2 indexed partnerId);

    function partnerSwap(bytes2 _partnerId) external;

    function swapTokens(
        uint16 _dstChainId,
        uint16 _srcPoolId,
        uint16 _dstPoolId,
        uint256 _amountLD,
        uint256 _minAmountLD,
        IStargateRouter.lzTxObj calldata _lzTxParams,
        bytes calldata _to,
        bytes2 _partnerId,
        FeeObj calldata _feeObj
    ) external payable;


    function swapETH(
        uint16 _dstChainId,
        uint256 _amountLD,
        uint256 _minAmountLD,
        bytes calldata _to,
        bytes2 _partnerId,
        FeeObj calldata _feeObj
    ) external payable;
}

File 8 of 10 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @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 `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, 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 `from` to `to` 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 from,
        address to,
        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);
}

File 9 of 10 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @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
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 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");

        (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");

        (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");

        (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");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 10 of 10 : IStargatePool.sol
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.4;

interface IStargatePool {
    function token() external returns (address);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"_stargateRouter","type":"address"},{"internalType":"address","name":"_stargateRouterETH","type":"address"},{"internalType":"address","name":"_stargateFactory","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes2","name":"partnerId","type":"bytes2"}],"name":"PartnerSwap","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes2","name":"partnerId","type":"bytes2"},{"indexed":false,"internalType":"uint256","name":"tenthBps","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"widgetFee","type":"uint256"}],"name":"WidgetSwapped","type":"event"},{"inputs":[],"name":"TENTH_BPS_DENOMINATOR","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes2","name":"_partnerId","type":"bytes2"}],"name":"partnerSwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stargateFactory","outputs":[{"internalType":"contract IStargateFactory","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"stargateRouter","outputs":[{"internalType":"contract IStargateRouter","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"stargateRouterETH","outputs":[{"internalType":"contract IStargateRouterETH","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"uint256","name":"_amountLD","type":"uint256"},{"internalType":"uint256","name":"_minAmountLD","type":"uint256"},{"internalType":"bytes","name":"_to","type":"bytes"},{"internalType":"bytes2","name":"_partnerId","type":"bytes2"},{"components":[{"internalType":"uint256","name":"tenthBps","type":"uint256"},{"internalType":"address","name":"feeCollector","type":"address"}],"internalType":"struct IStargateWidget.FeeObj","name":"_feeObj","type":"tuple"}],"name":"swapETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"uint16","name":"_srcPoolId","type":"uint16"},{"internalType":"uint16","name":"_dstPoolId","type":"uint16"},{"internalType":"uint256","name":"_amountLD","type":"uint256"},{"internalType":"uint256","name":"_minAmountLD","type":"uint256"},{"components":[{"internalType":"uint256","name":"dstGasForCall","type":"uint256"},{"internalType":"uint256","name":"dstNativeAmount","type":"uint256"},{"internalType":"bytes","name":"dstNativeAddr","type":"bytes"}],"internalType":"struct IStargateRouter.lzTxObj","name":"_lzTxParams","type":"tuple"},{"internalType":"bytes","name":"_to","type":"bytes"},{"internalType":"bytes2","name":"_partnerId","type":"bytes2"},{"components":[{"internalType":"uint256","name":"tenthBps","type":"uint256"},{"internalType":"address","name":"feeCollector","type":"address"}],"internalType":"struct IStargateWidget.FeeObj","name":"_feeObj","type":"tuple"}],"name":"swapTokens","outputs":[],"stateMutability":"payable","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

00000000000000000000000053bf833a5d6c4dda888f69c22c88c9f356a41614000000000000000000000000bf22f0f184bccbea268df387a49ff5238dd23e4000000000000000000000000055bdb4164d28fbaf0898e0ef14a589ac09ac9970

-----Decoded View---------------
Arg [0] : _stargateRouter (address): 0x53bf833a5d6c4dda888f69c22c88c9f356a41614
Arg [1] : _stargateRouterETH (address): 0xbf22f0f184bccbea268df387a49ff5238dd23e40
Arg [2] : _stargateFactory (address): 0x55bdb4164d28fbaf0898e0ef14a589ac09ac9970

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 00000000000000000000000053bf833a5d6c4dda888f69c22c88c9f356a41614
Arg [1] : 000000000000000000000000bf22f0f184bccbea268df387a49ff5238dd23e40
Arg [2] : 00000000000000000000000055bdb4164d28fbaf0898e0ef14a589ac09ac9970


Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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