ERC721Facet
function tokenIdsOfOwner(address _owner) external view returns (uint256[] tokenIds_)
function totalSupply() external view returns (uint256)
function tokenByIndex(uint256 _index) external view returns (uint256 tokenId_)
Enumerate valid NFTs
Throws if
_index >= totalSupply().Name | Type | Description |
|---|---|---|
_index | uint256 | A counter less than totalSupply() |
Name | Type | Description |
|---|---|---|
tokenId_ | uint256 | The token identifier for the _indexth NFT, (sort order not specified) |
function balanceOf(address _owner) external view returns (uint256 balance_)
Count all NFTs assigned to an owner
NFTs assigned to the zero address are considered invalid, and this. function throws for queries about the zero address.
Name | Type | Description |
|---|---|---|
_owner | address | An address for whom to query the balance |
Name | Type | Description |
|---|---|---|
balance_ | uint256 | The number of NFTs owned by _owner, possibly zero |
function ownerOf(uint256 _tokenId) external view returns (address owner_)
Find the owner of an NFT
NFTs assigned to zero address are considered invalid, and queries about them do throw.
Name | Type | Description |
|---|---|---|
_tokenId | uint256 | The identifier for an NFT |
Name | Type | Description |
|---|---|---|
owner_ | address | The address of the owner of the NFT |
function getApproved(uint256 _tokenId) external view returns (address approved_)
Get the approved address for a single NFT
Throws if
_tokenId is not a valid NFT.Name | Type | Description |
|---|---|---|
_tokenId | uint256 | The NFT to find the approved address for |
Name | Type | Description |
|---|---|---|
approved_ | address | The approved address for this NFT, or the zero address if there is none |
function isApprovedForAll(address _owner, address _operator) external view returns (bool approved_)
Query if an address is an authorized operator for another address
Name | Type | Description |
|---|---|---|
_owner | address | The address that owns the NFTs |
_operator | address | The address that acts on behalf of the owner |
Name | Type | Description |
|---|---|---|
approved_ | bool | True if _operator is an approved operator for _owner, false otherwise |
function safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes _data) public
Transfers the ownership of an NFT from one address to another address
Throws unless
msg.sender is the current owner, an authorized operator, or the approved address for this NFT. Throws if _from is not the current owner. Throws if _to is the zero address. Throws if _tokenId is not a valid NFT. When transfer is complete, this function checks if _to is a smart contract (code size > 0). If so, it calls onERC721Received on _to and throws if the return value is not bytes4(keccak256("onERC721Received(address,address,uint256,bytes)")).Name | Type | Description |
|---|---|---|
_from | address | The current owner of the NFT |
_to | address | The new owner |
_tokenId | uint256 | The NFT to transfer |
_data | bytes | Additional data with no specified format, sent in call to _to |
function safeTransferFrom(address _from, address _to, uint256 _tokenId) external
Transfers the ownership of an NFT from one address to another address
This works identically to the other function with an extra data parameter, except this function just sets data to "".
Name | Type | Description |
|---|---|---|
_from | address | The current owner of the NFT |
_to | address | The new owner |
_tokenId | uint256 | The NFT to transfer |
function transferFrom(address _from, address _to, uint256 _tokenId) external
Transfer ownership of an NFT -- THE CALLER IS RESPONSIBLE TO CONFIRM THAT
_to IS CAPABLE OF RECEIVING NFTS OR ELSE THEY MAY BE PERMANENTLY LOSTThrows unless
msg.sender is the current owner, an authorized operator, or the approved address for this NFT. Throws if _from is not the current owner. Throws if _to is the zero address. Throws if _tokenId is not a valid NFT.Name | Type | Description |
|---|---|---|
_from | address | The current owner of the NFT |
_to | address | The new owner |
_tokenId | uint256 | The NFT to transfer |
function approve(address _approved, uint256 _tokenId) external
Change or reaffirm the approved address for an NFT
The zero address indicates there is no approved address. Throws unless
msg.sender is the current NFT owner, or an authorized operator of the current owner.Name | Type | Description |
|---|---|---|
_approved | address | The new approved NFT controller |
_tokenId | uint256 | The NFT to approve |
function setApprovalForAll(address _operator, bool _approved) external
Enable or disable approval for a third party ("operator") to manage all of
msg.sender's assetsEmits the ApprovalForAll event. The contract MUST allow multiple operators per owner.
Name | Type | Description |
|---|---|---|
_operator | address | Address to add to the set of authorized operators |
_approved | bool | True if the operator is approved, false to revoke approval |
function name() external pure returns (string)
function symbol() external pure returns (string)
An abbreviated name for NFTs in this contract
function tokenURI(uint256 _tokenId) external pure returns (string)
A distinct Uniform Resource Identifier (URI) for a given asset.
Throws if
_tokenId is not a valid NFT. URIs are defined in RFC 3986. The URI may point to a JSON file that conforms to the "ERC721 Metadata JSON Schema".function setIndex(uint256 _tokenId) external
struct MintParcelInput {
uint256 coordinateX;
uint256 coordinateY;
uint256 parcelId;
uint256 size;
uint256 fomoBoost;
uint256 fudBoost;
uint256 kekBoost;
uint256 alphaBoost;
}
function safeBatchTransfer(address _from, address _to, uint256[] _tokenIds, bytes _data) external