Contract 0xB18C2922a3d07bd09b1A688D6f19b45eB68C37AF

Txn Hash Method
Block
From
To
Value [Txn Fee]
0x31a893b062c08139a15a52461a39724f7dde6d9c1d75ac18bf650085e9baf1c70x60806040207469442021-11-01 12:42:5888 days 21 hrs ago0xb98d4d4e205aff4d4755e9df19bd0b8bd4e0f148 IN  Create: ProviderCream0 FTM0.186317340012
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Latest 15 internal transactions
Parent Txn Hash Block From To Value
0xbb365463a9a0a0b2965d77ab4a106ed16cdcefcf8fdb033c9fb9814e333bbc78290714512022-01-26 5:44:193 days 4 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token1.03 FTM
0x9a6ad2c604b8a387466bc4416d6bc1008066cf9772038282082ed4515bbd237e290673612022-01-26 4:47:383 days 5 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token120 FTM
0xdc462fa7990a4bafab812b58b4c44ae5060ccf4c196069a84a713cadfd63d32a290546822022-01-26 1:40:383 days 8 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token300 FTM
0x129f7b03d2fd0c47cb92065d2f42f6f1ccb6c79393cbb6dcfaa5cebd09fa2cb2290303212022-01-25 19:08:383 days 15 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token5 FTM
0x98eabd1c6c6d375c98dc0427a9ea52a5bc5949287a87626045f6da8e5ed6134c290041072022-01-25 12:21:543 days 22 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token1,690 FTM
0xd6754523ba654906fb073099409db9e1a8bc048e9178d3521acb1befaf5b7f5c290038692022-01-25 12:18:203 days 22 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token4,750 FTM
0xcd743b91889f3595f5ff5292d62cefaef16563645265368ddb626742b7b16d33289968592022-01-25 10:31:233 days 23 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token7 FTM
0xba38835144f7dfa8e6598d778494aae4641e1d1fc10c25886ea33a9dace4e430289884332022-01-25 8:03:174 days 2 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token2 FTM
0x4a6318207deff67008bc5b4dc3b65aae71bdabe057d4ab648271c2cae3da3062289771502022-01-25 5:10:434 days 5 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token10 FTM
0xa0a874dd209ea9044c6872f4ee95f5fffcd836218223385e6234683f703ef899289748762022-01-25 4:39:304 days 5 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token120 FTM
0x051ba7916d8160f7fa40c5b48feb31bcecefaed96211052fe6bbf46105a2fd8c289380862022-01-24 19:43:164 days 14 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token2 FTM
0xe2915b582ff84878fa9b1bf6d1748f3c52c67559e24ef31ea3ebc7f3c7d8967e289296442022-01-24 17:24:074 days 17 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token0.55 FTM
0x299ee798ff9277308865586ad684af4d7edd78837f5262761d5a94d6aeb9ae8b289135742022-01-24 13:12:084 days 21 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token65 FTM
0x1b2134dd509cabc48d370f5598e97b231737dc83d326c25fe636260f3a2c1da8289133072022-01-24 13:08:134 days 21 hrs ago 0xb18c2922a3d07bd09b1a688d6f19b45eb68c37af Fantom Finance: Wrapped Fantom Token27,390.947886846027845989 FTM
0x31a893b062c08139a15a52461a39724f7dde6d9c1d75ac18bf650085e9baf1c7207469442021-11-01 12:42:5888 days 21 hrs ago 0xb98d4d4e205aff4d4755e9df19bd0b8bd4e0f148  Contract Creation0 FTM
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Contract Source Code Verified (Exact Match)

Contract Name:
ProviderCream

Compiler Version
v0.8.0+commit.c7dfd78e

Optimization Enabled:
Yes with 1000 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 13 : ProviderCream.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import "../../interfaces/IProvider.sol";
import "../../interfaces/IUnwrapper.sol";
import "../../interfaces/IVault.sol";
import "../../interfaces/IWETH.sol";
import "../../interfaces/IFujiMappings.sol";
import "../../interfaces/compound/IGenCToken.sol";
import "../../interfaces/compound/ICErc20.sol";
import "../../interfaces/compound/IComptroller.sol";
import "../libraries/LibUniversalERC20FTM.sol";

contract HelperFunct {
  function _isFTM(address token) internal pure returns (bool) {
    return (token == address(0) || token == address(0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF));
  }

  function _getMappingAddr() internal pure returns (address) {
    return 0x1eEdE44b91750933C96d2125b6757C4F89e63E20; // Cream fantom mapper
  }

  function _getComptrollerAddress() internal pure returns (address) {
    return 0x4250A6D3BD57455d7C6821eECb6206F507576cD2; // Cream fantom
  }

  function _getUnwrapper() internal pure returns(address) {
    return 0xee94A39D185329d8c46dEA726E01F91641E57346;
  }

  //fantomCream functions

  /**
   * @dev Approves vault's assets as collateral for fantomCream Protocol.
   * @param _cyTokenAddress: asset type to be approved as collateral.
   */
  function _enterCollatMarket(address _cyTokenAddress) internal {
    // Create a reference to the corresponding network Comptroller
    IComptroller comptroller = IComptroller(_getComptrollerAddress());

    address[] memory cyTokenMarkets = new address[](1);
    cyTokenMarkets[0] = _cyTokenAddress;
    comptroller.enterMarkets(cyTokenMarkets);
  }

  /**
   * @dev Removes vault's assets as collateral for fantomCream Protocol.
   * @param _cyTokenAddress: asset type to be removed as collateral.
   */
  function _exitCollatMarket(address _cyTokenAddress) internal {
    // Create a reference to the corresponding network Comptroller
    IComptroller comptroller = IComptroller(_getComptrollerAddress());

    comptroller.exitMarket(_cyTokenAddress);
  }
}

contract ProviderCream is IProvider, HelperFunct {
  using LibUniversalERC20FTM for IERC20;

  //Provider Core Functions

  /**
   * @dev Deposit ETH/ERC20_Token.
   * @param _asset: token address to deposit. (For FTM: 0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF)
   * @param _amount: token amount to deposit.
   */
  function deposit(address _asset, uint256 _amount) external payable override {
    //Get cyToken address from mapping
    address cyTokenAddr = IFujiMappings(_getMappingAddr()).addressMapping(_asset);

    //Enter and/or ensure collateral market is enacted
    _enterCollatMarket(cyTokenAddr);

    if (_isFTM(_asset)) {
      // Transform ETH to WETH
      IWETH(0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83).deposit{ value: _amount }();
      _asset = address(0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83);
    }

    // Create reference to the ERC20 contract
    IERC20 erc20token = IERC20(_asset);

    // Create a reference to the cyToken contract
    ICErc20 cyToken = ICErc20(cyTokenAddr);

    //Checks, Vault balance of ERC20 to make deposit
    require(erc20token.balanceOf(address(this)) >= _amount, "Not enough Balance");

    //Approve to move ERC20tokens
    erc20token.univApprove(address(cyTokenAddr), _amount);

    // fantomCream Protocol mints cyTokens, trhow error if not
    require(cyToken.mint(_amount) == 0, "Deposit-failed");
  }

  /**
   * @dev Withdraw ETH/ERC20_Token.
   * @param _asset: token address to withdraw. (For FTM: 0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF)
   * @param _amount: token amount to withdraw.
   */
  function withdraw(address _asset, uint256 _amount) external payable override {
    //Get cyToken address from mapping
    address cyTokenAddr = IFujiMappings(_getMappingAddr()).addressMapping(_asset);

    // Create a reference to the corresponding cyToken contract
    IGenCToken cyToken = IGenCToken(cyTokenAddr);

    //fantomCream Protocol Redeem Process, throw errow if not.
    require(cyToken.redeemUnderlying(_amount) == 0, "Withdraw-failed");

    if (_isFTM(_asset)) {
      // Transform WFTM to FTM
      address unwrapper = _getUnwrapper();
      IERC20(0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83).univTransfer(payable(unwrapper), _amount);
      IUnwrapper(unwrapper).withdraw(_amount);
    }
  }

  /**
   * @dev Borrow ETH/ERC20_Token.
   * @param _asset token address to borrow.(For FTM: 0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF)
   * @param _amount: token amount to borrow.
   */
  function borrow(address _asset, uint256 _amount) external payable override {
    //Get cyToken address from mapping
    address cyTokenAddr = IFujiMappings(_getMappingAddr()).addressMapping(_asset);

    // Create a reference to the corresponding cyToken contract
    IGenCToken cyToken = IGenCToken(cyTokenAddr);

    // Enter and/or ensure collateral market is enacted
    // _enterCollatMarket(cyTokenAddr);

    // fantomCream Protocol Borrow Process, throw errow if not.
    require(cyToken.borrow(_amount) == 0, "borrow-failed");

    if (_isFTM(_asset)) {
      // Transform WFTM to FTM
      address unwrapper = _getUnwrapper();
      IERC20(0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83).univTransfer(payable(unwrapper), _amount);
      IUnwrapper(unwrapper).withdraw(_amount);
    }
  }

  /**
   * @dev Payback borrowed ETH/ERC20_Token.
   * @param _asset token address to payback.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
   * @param _amount: token amount to payback.
   */
  function payback(address _asset, uint256 _amount) external payable override {
    //Get cyToken address from mapping
    address cyTokenAddr = IFujiMappings(_getMappingAddr()).addressMapping(_asset);

    if (_isFTM(_asset)) {
      // Transform FTM to WFTM
      IWETH(0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83).deposit{ value: _amount }();
      _asset = address(0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83);
    }

    // Create reference to the ERC20 contract
    IERC20 erc20token = IERC20(_asset);

    // Create a reference to the corresponding cyToken contract
    ICErc20 cyToken = ICErc20(cyTokenAddr);

    // Check there is enough balance to pay
    require(erc20token.balanceOf(address(this)) >= _amount, "Not-enough-token");
    erc20token.univApprove(address(cyTokenAddr), _amount);
    cyToken.repayBorrow(_amount);
  }

  /**
   * @dev Returns the current borrowing rate (APR) of a ETH/ERC20_Token, in ray(1e27).
   * @param _asset: token address to query the current borrowing rate.
   */
  function getBorrowRateFor(address _asset) external view override returns (uint256) {
    address cyTokenAddr = IFujiMappings(_getMappingAddr()).addressMapping(_asset);

    // Block Rate transformed for common mantissa for Fuji in ray (1e27)
    // Note: Cream uses base 1e18
    uint256 bRateperBlock = IGenCToken(cyTokenAddr).borrowRatePerBlock() * 10**9;

    // The approximate number of blocks per year that is assumed by the Cream interest rate model
    // ~60 blocks per min in fantom
    return bRateperBlock * 60 * 60 * 24 * 365;
  }

  /**
   * @dev Returns the borrow balance of a ETH/ERC20_Token.
   * @param _asset: token address to query the balance.
   */
  function getBorrowBalance(address _asset) external view override returns (uint256) {
    address cyTokenAddr = IFujiMappings(_getMappingAddr()).addressMapping(_asset);

    return IGenCToken(cyTokenAddr).borrowBalanceStored(msg.sender);
  }

  /**
   * @dev Return borrow balance of ETH/ERC20_Token.
   * This function is the accurate way to get fantomCream borrow balance.
   * It costs ~84K gas and is not a view function.
   * @param _asset token address to query the balance.
   * @param _who address of the account.
   */
  function getBorrowBalanceOf(address _asset, address _who) external override returns (uint256) {
    address cyTokenAddr = IFujiMappings(_getMappingAddr()).addressMapping(_asset);

    return IGenCToken(cyTokenAddr).borrowBalanceCurrent(_who);
  }

  /**
   * @dev Returns the deposit balance of a ETH/ERC20_Token.
   * @param _asset: token address to query the balance.
   */
  function getDepositBalance(address _asset) external view override returns (uint256) {
    address cyTokenAddr = IFujiMappings(_getMappingAddr()).addressMapping(_asset);
    uint256 cyTokenBal = IGenCToken(cyTokenAddr).balanceOf(msg.sender);
    uint256 exRate = IGenCToken(cyTokenAddr).exchangeRateStored();

    return (exRate * cyTokenBal) / 1e18;
  }
}

File 2 of 13 : IERC20.sol
// SPDX-License-Identifier: MIT

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 `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);
}

File 3 of 13 : IProvider.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface IProvider {
  //Basic Core Functions

  function deposit(address _collateralAsset, uint256 _collateralAmount) external payable;

  function borrow(address _borrowAsset, uint256 _borrowAmount) external payable;

  function withdraw(address _collateralAsset, uint256 _collateralAmount) external payable;

  function payback(address _borrowAsset, uint256 _borrowAmount) external payable;

  // returns the borrow annualized rate for an asset in ray (1e27)
  //Example 8.5% annual interest = 0.085 x 10^27 = 85000000000000000000000000 or 85*(10**24)
  function getBorrowRateFor(address _asset) external view returns (uint256);

  function getBorrowBalance(address _asset) external view returns (uint256);

  function getDepositBalance(address _asset) external view returns (uint256);

  function getBorrowBalanceOf(address _asset, address _who) external returns (uint256);
}

File 4 of 13 : IUnwrapper.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface IUnwrapper {
  function withdraw(uint256 amount) external;
}

File 5 of 13 : IVault.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface IVault {
  // Events

  // Log Users Deposit
  event Deposit(address indexed userAddrs, address indexed asset, uint256 amount);
  // Log Users withdraw
  event Withdraw(address indexed userAddrs, address indexed asset, uint256 amount);
  // Log Users borrow
  event Borrow(address indexed userAddrs, address indexed asset, uint256 amount);
  // Log Users debt repay
  event Payback(address indexed userAddrs, address indexed asset, uint256 amount);

  // Log New active provider
  event SetActiveProvider(address providerAddr);
  // Log Switch providers
  event Switch(
    address fromProviderAddrs,
    address toProviderAddr,
    uint256 debtamount,
    uint256 collattamount
  );

  // Core Vault Functions

  function deposit(uint256 _collateralAmount) external payable;

  function withdraw(int256 _withdrawAmount) external;

  function withdrawLiq(int256 _withdrawAmount) external;

  function borrow(uint256 _borrowAmount) external;

  function payback(int256 _repayAmount) external payable;

  function paybackLiq(address[] memory _users, uint256 _repayAmount) external payable;

  function executeSwitch(
    address _newProvider,
    uint256 _flashLoanDebt,
    uint256 _fee
  ) external payable;

  //Getter Functions

  function activeProvider() external view returns (address);

  function borrowBalance(address _provider) external view returns (uint256);

  function depositBalance(address _provider) external view returns (uint256);

  function userDebtBalance(address _user) external view returns (uint256);

  function userProtocolFee(address _user) external view returns (uint256);

  function userDepositBalance(address _user) external view returns (uint256);

  function getNeededCollateralFor(uint256 _amount, bool _withFactors)
    external
    view
    returns (uint256);

  function getLiquidationBonusFor(uint256 _amount) external view returns (uint256);

  function getProviders() external view returns (address[] memory);

  function fujiERC1155() external view returns (address);

  //Setter Functions

  function setActiveProvider(address _provider) external;

  function updateF1155Balances() external;

  function protocolFee() external view returns (uint64, uint64);
}

File 6 of 13 : IWETH.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IWETH {
  function approve(address, uint256) external;

  function deposit() external payable;

  function withdraw(uint256) external;
}

File 7 of 13 : IFujiMappings.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface IFujiMappings {
  function addressMapping(address) external view returns (address);
}

File 8 of 13 : IGenCToken.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IGenCToken is IERC20 {
  function redeem(uint256) external returns (uint256);

  function redeemUnderlying(uint256) external returns (uint256);

  function borrow(uint256 borrowAmount) external returns (uint256);

  function exchangeRateCurrent() external returns (uint256);

  function exchangeRateStored() external view returns (uint256);

  function borrowRatePerBlock() external view returns (uint256);

  function balanceOfUnderlying(address owner) external returns (uint256);

  function borrowBalanceCurrent(address account) external returns (uint256);

  function borrowBalanceStored(address account) external view returns (uint256);
}

File 9 of 13 : ICErc20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import "./IGenCToken.sol";

interface ICErc20 is IGenCToken {
  function mint(uint256) external returns (uint256);

  function repayBorrow(uint256 repayAmount) external returns (uint256);

  function repayBorrowBehalf(address borrower, uint256 repayAmount) external returns (uint256);
}

File 10 of 13 : IComptroller.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface IComptroller {
  function markets(address) external returns (bool, uint256);

  function enterMarkets(address[] calldata) external returns (uint256[] memory);

  function exitMarket(address cyTokenAddress) external returns (uint256);

  function claimComp(address holder) external;
}

File 11 of 13 : LibUniversalERC20FTM.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

library LibUniversalERC20FTM {
  using SafeERC20 for IERC20;

  IERC20 private constant _FTM_ADDRESS = IERC20(0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF);
  IERC20 private constant _ZERO_ADDRESS = IERC20(0x0000000000000000000000000000000000000000);

  function isFTM(IERC20 token) internal pure returns (bool) {
    return (token == _ZERO_ADDRESS || token == _FTM_ADDRESS);
  }

  function univBalanceOf(IERC20 token, address account) internal view returns (uint256) {
    if (isFTM(token)) {
      return account.balance;
    } else {
      return token.balanceOf(account);
    }
  }

  function univTransfer(
    IERC20 token,
    address payable to,
    uint256 amount
  ) internal {
    if (amount > 0) {
      if (isFTM(token)) {
        (bool sent, ) = to.call{ value: amount }("");
        require(sent, "Failed to send Ether");
      } else {
        token.safeTransfer(to, amount);
      }
    }
  }

  function univApprove(
    IERC20 token,
    address to,
    uint256 amount
  ) internal {
    require(!isFTM(token), "Approve called on ETH");

    if (amount == 0) {
      token.safeApprove(to, 0);
    } else {
      uint256 allowance = token.allowance(address(this), to);
      if (allowance < amount) {
        if (allowance > 0) {
          token.safeApprove(to, 0);
        }
        token.safeApprove(to, amount);
      }
    }
  }
}

File 12 of 13 : SafeERC20.sol
// SPDX-License-Identifier: MIT

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 13 of 13 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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;
        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");

        (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);
            }
        }
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_asset","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"borrow","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_asset","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_asset","type":"address"}],"name":"getBorrowBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_asset","type":"address"},{"internalType":"address","name":"_who","type":"address"}],"name":"getBorrowBalanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_asset","type":"address"}],"name":"getBorrowRateFor","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_asset","type":"address"}],"name":"getDepositBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_asset","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"payback","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_asset","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"payable","type":"function"}]

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Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Validator ID :
0 FTM

Amount Staked
0

Amount Delegated
0

Staking Total
0

Staking Start Epoch
0

Staking Start Time
0

Proof of Importance
0

Origination Score
0

Validation Score
0

Active
0

Online
0

Downtime
0 s
Address Amount claimed Rewards Created On Epoch Created On
Block Uncle Number Difficulty Gas Used Reward
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