ERC1155URIStorageUpgradeable

Inherits: Initializable, ERC1155Upgradeable

ERC-1155 token with storage based token URI management. Inspired by the {ERC721URIStorage} extension

State Variables

ERC1155URIStorageStorageLocation

bytes32 private constant ERC1155URIStorageStorageLocation =
    0x89fc852226e759c7c636cf34d732f0198fc56a54876b2374a52beb7b0c558600;

Functions

_getERC1155URIStorageStorage

function _getERC1155URIStorageStorage() private pure returns (ERC1155URIStorageStorage storage $);

__ERC1155URIStorage_init

function __ERC1155URIStorage_init() internal onlyInitializing;

__ERC1155URIStorage_init_unchained

function __ERC1155URIStorage_init_unchained() internal onlyInitializing;

uri

*See IERC1155MetadataURI-uri. This implementation returns the concatenation of the _baseURI and the token-specific uri if the latter is set This enables the following behaviors:

• if _tokenURIs[tokenId] is set, then the result is the concatenation of _baseURI and _tokenURIs[tokenId] (keep in mind that _baseURI is empty per default);
• if _tokenURIs[tokenId] is NOT set then we fallback to super.uri() which in most cases will contain ERC1155._uri;
• if _tokenURIs[tokenId] is NOT set, and if the parents do not have a uri value set, then the result is empty.*

function uri(uint256 tokenId) public view virtual override returns (string memory);

_setURI

Sets tokenURI as the tokenURI of tokenId.

function _setURI(uint256 tokenId, string memory tokenURI) internal virtual;

_setBaseURI

Sets baseURI as the _baseURI for all tokens

function _setBaseURI(string memory baseURI) internal virtual;

Structs

ERC1155URIStorageStorage

Note: storage-location: erc7201:openzeppelin.storage.ERC1155URIStorage

struct ERC1155URIStorageStorage {
    string _baseURI;
    mapping(uint256 tokenId => string) _tokenURIs;
}