Solidity API

PropsReceiver

This contract allows the inheriting contract to receive ERC721 and ERC1155 tokens.

Abstract contract implementing receiver functions for ERC721 and ERC1155 tokens.

onERC721Received

function onERC721Received(address operator, address from, uint256 tokenId, bytes data) public virtual returns (bytes4)

Handles the receipt of a single ERC721 token

Parameters

Name	Type	Description
operator	address	The address which called safeTransferFrom function
from	address	The address which previously owned the token
tokenId	uint256	The NFT identifier which is being transferred
data	bytes	Additional data with no specified format

Return Values

Name	Type	Description
[0]	bytes4	bytes4 bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))

onERC1155Received

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

Handles the receipt of a single ERC1155 token type

Parameters

Name	Type	Description
operator	address	The address which called safeTransferFrom function
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 bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))

onERC1155BatchReceived

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

Handles the receipt of multiple ERC1155 token types

Parameters

Name	Type	Description
operator	address	The address which called safeBatchTransferFrom function
from	address	The address which previously owned the tokens
ids	uint256[]	An array containing ids of each token being transferred
values	uint256[]	An array containing amounts of each token being transferred
data	bytes	Additional data with no specified format

Return Values

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

_findFacet

function _findFacet(bytes4 functionSelector) internal view returns (address facet)

Internal function to find a facet that implements a given function selector

Parameters

Name	Type	Description
functionSelector	bytes4	The function selector to look for

Return Values

Name	Type	Description
facet	address	The address of the facet that implements the function, or address(0) if none found