Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Similar
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

// Import the IERC721 interface from OpenZeppelin
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";

contract BatchTransfer {
    address public nftContractAddress;

    // Constructor to initialize the NFT contract address
    constructor(address _nftContractAddress) {
        nftContractAddress = _nftContractAddress;
    }

    // Function to approve the contract to transfer tokens on behalf of the user
    function approveContractForTransfers() external {
        IERC721 nftContract = IERC721(nftContractAddress);
        bool isApproved = nftContract.isApprovedForAll(msg.sender, address(this));

        // If not approved, set approval
        if (!isApproved) {
            nftContract.setApprovalForAll(address(this), true);
        }
    }

    // Internal function to check and set approval for all tokens (called within batch transfer)
    function setApprovalIfNeeded() internal {
        IERC721 nftContract = IERC721(nftContractAddress);
        bool isApproved = nftContract.isApprovedForAll(msg.sender, address(this));

        // If not approved, set approval
        if (!isApproved) {
            nftContract.setApprovalForAll(address(this), true);
        }
    }

    // Batch transfer function
    function batchTransfer(address[] calldata to, uint256[] calldata tokenIds) external {
        require(to.length == tokenIds.length, "Arrays must be the same length");

        // First, ensure approval is granted to the contract
        setApprovalIfNeeded();

        IERC721 nftContract = IERC721(nftContractAddress);

        // Loop through all tokens and perform transfers
        for (uint256 i = 0; i < tokenIds.length; i++) {
            address tokenOwner = nftContract.ownerOf(tokenIds[i]);
            require(tokenOwner == msg.sender, "You do not own this token");

            // Transfer each token from the sender to the recipient
            nftContract.transferFrom(msg.sender, to[i], tokenIds[i]);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC-721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
     *   a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC-721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or
     *   {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
     *   a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC-721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the address zero.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_nftContractAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"approveContractForTransfers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"to","type":"address[]"},{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"batchTransfer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"nftContractAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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

00000000000000000000000022526ada48dd610fb48e7f8b7b496b597c043fc4

-----Decoded View---------------
Arg [0] : _nftContractAddress (address): 0x22526aDa48Dd610Fb48E7f8b7B496b597C043fC4

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000022526ada48dd610fb48e7f8b7b496b597c043fc4