BasicInfo

Check DID Name

Check whether a DID name has been claimed or not.

function didClaimed(string memory did) public view returns (bool);

• did: DID name

Verify DID Format

To verify the DID format, ensure that the DID name has a length between 5 and 54 characters, and only contains the characters 0-9 and lowercase letters a-z.

function verifyDIDFormat(string memory did) public pure returns (bool);

• did: DID name

Check address

Check whether an address has been claimed or not.

function addrClaimed(address addr) public view returns(bool);

• addr: user address

Get DID

Retrieve the DID name by token id.

function tokenId2Did(uint256 tokenId) public view returns (string memory);

• tokenId: token id

Get DID tokenId

Retrieve the token id by DID name.

function did2TokenId(string memory did) public view returns (uint256);

• did: DID name

Get issuer address

Retrieve the issuer address by DeedGrain contract address.

function deedGrainAddrToIssur(address dgAddr) public view returns(address);

• dgAddr: DeedGrain contract address

Get all authorization addresses

Retrieve all authorization addresses for specific DID.

function getAuthorizedAddrs(uint256 tokenId) public view returns (address[] memory);

• tokenId: DID token id

Check if address authorized

Check whether a DID has been authorized to the address or not.

function isAddrAuthorized(uint256 tokenId, address addr) public view returns (bool);

• tokenId: DID token id

• addr: authorization address