EncodeType

EncodeType

Git Source

Struct needed for endodeType and encodeData, see https://eips.ethereum.org/EIPS/eip-712#definition-of-encodetype

Structs

TokenVoucher

struct TokenVoucher {
    bytes32 tokenURI;
    uint256 price;
    uint256 endTime;
    uint256 tokenId;
    uint256 ERC1155Value;
    uint256 salt;
    address buyer;
    address ERC1271Account;
    address royaltyRecipient;
    uint96 royaltyBps;
    uint96[] commissionBps;
    address[] commissionRecipients;
}

Properties

Name	Type	Description
tokenURI	bytes32	the IPFS hash of the metadata
price	uint256
endTime	uint256	salt for when the signed voucher should expire, if no expiration is needed, salt should be type(uint256).max i.e. 2**256 - 1, or anything above 2^32, i.e. 4294967296, i.e. voucher expires after 2106 (in 83 years time)
tokenId	uint256	the id of the token to sell
ERC1155Value	uint256
salt	uint256	salt for the signature, to prevent replay attacks, also because it is the only way to make the same voucher unique, or else it would not be possible to sign the same encodeData twice because the signature is voided after lazyBuy is executed The voucher is not voided after lazyMint because it is not supposed to be used more than once; enforced in ERC721Metadata_URI-_mint() to avoid repolay attacks
buyer	address	if not empty, indicates that the voucher is for a specific address
ERC1271Account	address	if not empty, indicates that the signer is a contract that implements ERC1271
royaltyRecipient	address
royaltyBps	uint96	royalty basis points. Will be ignored in lazyBuy, while it must be used in lazyMint
commissionBps	uint96[]	array of commission basis points, i.e. 10000 = 100%, commissionBps.length must be the same as commissionRecipients.length
commissionRecipients	address[]	array of commission recipients

MarketplaceVoucher

struct MarketplaceVoucher {
    uint256 price;
    uint256 endTime;
    uint256 tokenId;
    uint256 ERC1155Value;
    uint256 salt;
    address collection;
    address buyer;
    address ERC1271Account;
    uint96[] commissionBps;
    address[] commissionReceivers;
}

Properties

Name	Type	Description
price	uint256
endTime	uint256	salt for when the signed voucher should expire, if no expiration is needed, salt should be type(uint256).max i.e. 2**256 - 1, or anything above 2^32, i.e. 4294967296, i.e. voucher expires after 2106 (in 83 years time)
tokenId	uint256	the tokenId will be ignored in lazyMint, because it will be _owners.length while it must beused in lazyBuy
ERC1155Value	uint256
salt	uint256	salt for the signature, to prevent replay attacks, also because it is the only way to make the same voucher unique, or else it would not be possible to sign the same encodeData twice because the signature is voided after lazyBuy is executed The voucher is not voided after lazyMint because it is not supposed to be used more than once; enforced in ERC721Metadata_URI-_mint() to avoid repolay attacks
collection	address
buyer	address	if not empty, indicates that the voucher is for a specific address, and that the voucher
ERC1271Account	address	if not empty, indicates that the signer is a contract that implements ERC1271
commissionBps	uint96[]	array of commission basis points, i.e. 10000 = 100%, commissionBps.length must be the same as commissionReceivers.length
commissionReceivers	address[]	array of commission receivers