Contract template

Destructible ERC721 token

The ERC721 token is a non-homogeneous token. The fully functional ERC721 token contains the metadata and enumerability of ERC721. Destructible ERC721 tokens refer to the addition of the destruction logic to the fully functional ERC721 tokens, and the account can only destroy the tokens it holds.

Contract Document: ERC721Burnable.sol (opens new window)

test scripts: ERC721Burnable.js (opens new window)

Deployment script: 23_deploy_ERC721Burnable.js (opens new window)

Define the following variables when deploying the contract

string memory name,     //Token name
string memory symbol,   //tokens for
string memory baseURI,   // Token base link

Calling methods

//Return the token name
name() public view returns (string memory)
// Return token abbreviation
symbol() public view returns (string memory)
// Token base link address
BaseURI external View returns (String Memory)
// Add the Token method, passing in the owner's address and the Token's data link address
awardItem(address player, string memory tokenURI) public returns (uint256)
// Return the data connection address according to tokenID
tokenURI(uint256 tokenId) external view returns (string memory)
// Returns the number of tokens owned by the specified account
balanceOf(address owner) public view returns (uint256)
// Returns the owner according to tokenID
ownerOf(uint256 tokenId) public view returns (address)
// Approve tokens
approve(address to, uint256 tokenId) public
// Get the approved address of the token ID; If no address is set or tokenID does not exist, zero is returned; .
getApproved(uint256 tokenId) public view returns (address)
// Approve all the owner's tokens to the specified address
setApprovalForAll(address to, bool approved) public
// Get whether the operator approves all tokens to the specified address
isApprovedForAll(address owner, address operator) public view returns (bool)
// Send approval
transferFrom(address from, address to, uint256 tokenId) public
// Securely send the approval
safeTransferFrom(address from, address to, uint256 tokenId) public
// Gets the token ID at the given index of the token list for the owner of the request
tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256)
// Get the total amount of tokens for the contract
totalSupply() public view returns (uint256)
// Get tokens by indexing
tokenByIndex(uint256 index) public view returns (uint256)
// The token destruction method
burn(uint256 tokenId) public