IERC1155TokenReceiver

Functions

onERC1155Received

function onERC1155Received(address operator, address from, uint256 id, uint256 value, bytes data) external returns (bytes4)

Handles the receipt of a single ERC1155 token type. This function is called at the end of a safeTransferFrom after the balance has been updated. To accept the transfer, this must return bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)")) (i.e. 0xf23a6e61, or its own function selector).

Parameters

Name	Type	Description
operator	address	The address which initiated the transfer (i.e. msg.sender)
from	address	The address which previously owned the token
id	uint256	The ID of the token being transferred
value	uint256	The amount of tokens being transferred
data	bytes	Additional data with no specified format

Return Values

Name	Type	Description
[0]	bytes4	bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)")) if transfer is allowed

onERC1155BatchReceived

function onERC1155BatchReceived(address operator, address from, uint256[] ids, uint256[] values, bytes data) external returns (bytes4)

Handles the receipt of a multiple ERC1155 token types. This function is called at the end of a safeBatchTransferFrom after the balances have been updated. To accept the transfer(s), this must return bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)")) (i.e. 0xbc197c81, or its own function selector).

Parameters

Name	Type	Description
operator	address	The address which initiated the batch transfer (i.e. msg.sender)
from	address	The address which previously owned the token
ids	uint256[]	An array containing ids of each token being transferred (order and length must match values array)
values	uint256[]	An array containing amounts of each token being transferred (order and length must match ids array)
data	bytes	Additional data with no specified format

Return Values

Name	Type	Description
[0]	bytes4	bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)")) if transfer is allowed