IERC721Permit

Extension to ERC721 that includes a permit function for signature based approvals

Functions

  function PERMIT_TYPEHASH(
  ) external returns (bytes32)

The permit typehash used in the permit signature

Type	Description
bytes32	typehash for the permit

  function DOMAIN_SEPARATOR(
  ) external returns (bytes32)

The domain separator used in the permit signature

Name	Type	Description
`The`		domain seperator used in encoding of permit signature

  function permit(
    address spender,
    uint256 tokenId,
    uint256 deadline,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) external

Approve of a specific token ID for spending by spender via signature

Name	Type	Description
`spender`	address	The account that is being approved
`tokenId`	uint256	The ID of the token that is being approved for spending
`deadline`	uint256	The deadline timestamp by which the call must be mined for the approve to work
`v`	uint8	Must produce valid secp256k1 signature from the holder along with `r` and `s`
`r`	bytes32	Must produce valid secp256k1 signature from the holder along with `v` and `s`
`s`	bytes32	Must produce valid secp256k1 signature from the holder along with `r` and `v`