TransferManager
This contract provides the transfer functions for ERC721/ERC1155 for contracts that require them. Collection type "0" refers to ERC721 transfer functions. Collection type "1" refers to ERC1155 transfer functions.
"Safe" transfer functions for ERC721 are not implemented since they come with added gas costs to verify if the recipient is a contract as it requires verifying the receiver interface is valid.
hasUserApprovedOperator
mapping(address => mapping(address => bool)) hasUserApprovedOperator
This returns whether the user has approved the operator address. The first address is the user and the second address is the operator (e.g. LooksRareProtocol).
isOperatorAllowed
mapping(address => bool) isOperatorAllowed
This returns whether the operator address is allowed by this contract's owner.
constructor
constructor(address _owner) public
Constructor
Parameters
| Name | Type | Description |
|---|---|---|
| _owner | address | Owner address |
transferItemsERC721
function transferItemsERC721(address collection, address from, address to, uint256[] itemIds, uint256[] amounts) external
This function transfers items for a single ERC721 collection.
Parameters
| Name | Type | Description |
|---|---|---|
| collection | address | Collection address |
| from | address | Sender address |
| to | address | Recipient address |
| itemIds | uint256[] | Array of itemIds |
| amounts | uint256[] | Array of amounts |
transferItemsERC1155
function transferItemsERC1155(address collection, address from, address to, uint256[] itemIds, uint256[] amounts) external
This function transfers items for a single ERC1155 collection.
It does not allow batch transferring if from = msg.sender since native function should be used.
Parameters
| Name | Type | Description |
|---|---|---|
| collection | address | Collection address |
| from | address | Sender address |
| to | address | Recipient address |
| itemIds | uint256[] | Array of itemIds |
| amounts | uint256[] | Array of amounts |
transferBatchItemsAcrossCollections
function transferBatchItemsAcrossCollections(struct ITransferManager.BatchTransferItem[] items, address from, address to) external
This function transfers items across an array of collections that can be both ERC721 and ERC1155.
Parameters
| Name | Type | Description |
|---|---|---|
| items | struct ITransferManager.BatchTransferItem[] | Array of BatchTransferItem |
| from | address | Sender address |
| to | address | Recipient address |
grantApprovals
function grantApprovals(address[] operators) external
This function allows a user to grant approvals for an array of operators. Users cannot grant approvals if the operator is not allowed by this contract's owner.
Each operator address must be globally allowed to be approved.
Parameters
| Name | Type | Description |
|---|---|---|
| operators | address[] | Array of operator addresses |
revokeApprovals
function revokeApprovals(address[] operators) external
This function allows a user to revoke existing approvals for an array of operators.
Each operator address must be approved at the user level to be revoked.
Parameters
| Name | Type | Description |
|---|---|---|
| operators | address[] | Array of operator addresses |
allowOperator
function allowOperator(address operator) external
This function allows an operator to be added for the shared transfer system. Once the operator is allowed, users can grant NFT approvals to this operator.
Only callable by owner.
Parameters
| Name | Type | Description |
|---|---|---|
| operator | address | Operator address to allow |
removeOperator
function removeOperator(address operator) external
This function allows the user to remove an operator for the shared transfer system.
Only callable by owner.
Parameters
| Name | Type | Description |
|---|---|---|
| operator | address | Operator address to remove |