The contract to call multiple external contracts in one transaction. This Contract uses TransparentUpgradeableProxy.

    function initialize(address _owner) public initializer

This function is called to initialize the contract

function multiCall(
         calldata targets,
        bytes[] calldata data
    ) external onlyOwner nonReentrant returns (bytes[] memory)

Batchs multiple transactions in one transaction.

Parameters

function onERC721Received(
        address,
        address,
        uint256,
        bytes calldata
    ) external pure returns (bytes4)

ERC721 callback function to receive NFTs.

When using the safeTransferFrom function to send ERC721 tokens to a contract address, it will fail unless the receiving contract properly implements the ERC721TokenReceiver interface. (See the ERC721 Standard for details).

the onERC721Received function and will return bytes4(keccak256("onERC721Received(address,uint256,bytes)")).

   event MulticallExecuted(address[] targets, bytes[] data);

emits an event with params when the multiCall function is executed.

    error CallFailed(address _target, bytes _data);

Error thrown when the call to the external contract fails.

yarn

yarn compile

yarn flatten

yarn deploy