ERC1155Internal

ERC1155Internal

_beforeTokenTransfer

function _beforeTokenTransfer(address operator, address from, address to, uint256[] ids, uint256[] amounts, bytes data) internal virtual

ERC1155 hook, called before all transfers including mint and burn

function should be overridden and new implementation must call super called for both single and batch transfers

Parameters

Name	Type	Description
operator	address	executor of transfer
from	address	sender of tokens
to	address	receiver of tokens
ids	uint256[]	token IDs
amounts	uint256[]	quantities of tokens to transfer
data	bytes	data payload