IERC 1155 Metadata URI

Interface of the optional ERC1155MetadataExtension interface, as defined in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP]. Available since v3.1.

Methods

balanceOf

function balanceOf(address account, uint256 id) external view returns (uint256)

Returns the amount of tokens of token type id owned by account. Requirements: - account cannot be the zero address.

Parameters

Name	Type	Description
account	address	undefined
id	uint256	undefined

Returns

Name	Type	Description
_0	uint256	undefined

balanceOfBatch

function balanceOfBatch(address[] accounts, uint256[] ids) external view returns (uint256[])

xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}. Requirements: - accounts and ids must have the same length.

Parameters

Name	Type	Description
accounts	address[]	undefined
ids	uint256[]	undefined

Returns

Name	Type	Description
_0	uint256[]	undefined

isApprovedForAll

function isApprovedForAll(address account, address operator) external view returns (bool)

Returns true if operator is approved to transfer account's tokens. See {setApprovalForAll}.

Parameters

Name	Type	Description
account	address	undefined
operator	address	undefined

Returns

Name	Type	Description
_0	bool	undefined

safeBatchTransferFrom

function safeBatchTransferFrom(address from, address to, uint256[] ids, uint256[] amounts, bytes data) external nonpayable

xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}. Emits a {TransferBatch} event. Requirements: - ids and amounts must have the same length. - If to refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the acceptance magic value.

Parameters

Name	Type	Description
from	address	undefined
to	address	undefined
ids	uint256[]	undefined
amounts	uint256[]	undefined
data	bytes	undefined

safeTransferFrom

function safeTransferFrom(address from, address to, uint256 id, uint256 amount, bytes data) external nonpayable

Transfers amount tokens of token type id from from to to. Emits a {TransferSingle} event. Requirements: - to cannot be the zero address. - If the caller is not from, it must be have been approved to spend from's tokens via {setApprovalForAll}. - from must have a balance of tokens of type id of at least amount. - If to refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the acceptance magic value.

Parameters

Name	Type	Description
from	address	undefined
to	address	undefined
id	uint256	undefined
amount	uint256	undefined
data	bytes	undefined

setApprovalForAll

function setApprovalForAll(address operator, bool approved) external nonpayable

Grants or revokes permission to operator to transfer the caller's tokens, according to approved, Emits an {ApprovalForAll} event. Requirements: - operator cannot be the caller.

Parameters

Name	Type	Description
operator	address	undefined
approved	bool	undefined

supportsInterface

function supportsInterface(bytes4 interfaceId) external view returns (bool)

Returns true if this contract implements the interface defined by interfaceId. See the corresponding https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] to learn more about how these ids are created. This function call must use less than 30 000 gas.

Parameters

Name	Type	Description
interfaceId	bytes4	undefined

Returns

Name	Type	Description
_0	bool	undefined

uri

function uri(uint256 id) external view returns (string)

Returns the URI for token type id. If the \{id\} substring is present in the URI, it must be replaced by clients with the actual token type ID.

Parameters

Name	Type	Description
id	uint256	undefined

Returns

Name	Type	Description
_0	string	undefined

Events

ApprovalForAll

event ApprovalForAll(address indexed account, address indexed operator, bool approved)

Parameters

Name	Type	Description
account indexed	address	undefined
operator indexed	address	undefined
approved	bool	undefined

TransferBatch

event TransferBatch(address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values)

Parameters

Name	Type	Description
operator indexed	address	undefined
from indexed	address	undefined
to indexed	address	undefined
ids	uint256[]	undefined
values	uint256[]	undefined

TransferSingle

event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value)

Parameters

Name	Type	Description
operator indexed	address	undefined
from indexed	address	undefined
to indexed	address	undefined
id	uint256	undefined
value	uint256	undefined

URI

event URI(string value, uint256 indexed id)

Parameters

Name	Type	Description
value	string	undefined
id indexed	uint256	undefined