BendExchange

It is the core contract of the Bend exchange.

Methods

matchAskWithTakerBid​

function matchAskWithTakerBid(OrderTypes.TakerOrder takerBid, OrderTypes.MakerOrder makerAsk) external nonpayable

Match a takerBid with a matchAsk

Parameters​

Name	Type	Description
takerBid	OrderTypes.TakerOrder	taker bid order
makerAsk	OrderTypes.MakerOrder	maker ask order

matchAskWithTakerBidUsingETHAndWETH​

function matchAskWithTakerBidUsingETHAndWETH(OrderTypes.TakerOrder takerBid, OrderTypes.MakerOrder makerAsk) external payable

Match ask with a taker bid order using ETH

Parameters​

Name	Type	Description
takerBid	OrderTypes.TakerOrder	taker bid order
makerAsk	OrderTypes.MakerOrder	maker ask order

matchBidWithTakerAsk​

function matchBidWithTakerAsk(OrderTypes.TakerOrder takerAsk, OrderTypes.MakerOrder makerBid) external nonpayable

Match a takerAsk with a makerBid

Parameters​

Name	Type	Description
takerAsk	OrderTypes.TakerOrder	taker ask order
makerBid	OrderTypes.MakerOrder	maker bid order

cancelAllOrdersForSender​

function cancelAllOrdersForSender(uint256 minNonce) external nonpayable

Cancel all pending orders for a sender

Parameters​

Name	Type	Description
minNonce	uint256	minimum user nonce

cancelMultipleMakerOrders​

function cancelMultipleMakerOrders(uint256[] orderNonces) external nonpayable

Cancel maker orders

Parameters​

Name	Type	Description
orderNonces	uint256[]	array of order nonces

CancelMultipleOrders​

event CancelMultipleOrders(address indexed user, uint256[] orderNonces)

Parameters​

Name	Type	Description
user indexed	address	user address
orderNonces	uint256[]	array of order nonces that are cancelled

renounceOwnership​

function renounceOwnership() external nonpayable

Leaves the contract without owner. It will not be possible to call onlyOwner functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.

transferOwnership​

function transferOwnership(address newOwner) external nonpayable

Transfers ownership of the contract to a new account (newOwner). Can only be called by the current owner.

Parameters​

Name	Type	Description
newOwner	address	address of the new owner

updateAuthorizationManager​

function updateAuthorizationManager(address _authorizationManager) external nonpayable

Update authorization manager

Parameters​

Name	Type	Description
_authorizationManager	address	new authorization manager address

updateCurrencyManager​

function updateCurrencyManager(address _currencyManager) external nonpayable

Update currency manager

Parameters​

Name	Type	Description
_currencyManager	address	new currency manager address

updateExecutionManager​

function updateExecutionManager(address _executionManager) external nonpayable

Update execution manager

Parameters​

Name	Type	Description
_executionManager	address	new execution manager address

updateProtocolFeeRecipient​

function updateProtocolFeeRecipient(address _protocolFeeRecipient) external nonpayable

Update protocol fee and recipient

Parameters​

Name	Type	Description
_protocolFeeRecipient	address	new recipient for protocol fees

updateRoyaltyFeeManager​

function updateRoyaltyFeeManager(address _royaltyFeeManager) external nonpayable

Update royalty fee manager

Parameters​

Name	Type	Description
_royaltyFeeManager	address	new fee manager address

updateTransferManager​

function updateTransferManager(address _transferManager) external nonpayable

Update transfer manager

Parameters​

Name	Type	Description
_transferManager	address	new transfer manager address

updateInterceptorManager​

function updateInterceptorManager(address _interceptorManager) external nonpayable

Update interceptor manager

Parameters​

Name	Type	Description
_interceptorManager	address	new interceptor manager address

View methods

DOMAIN_SEPARATOR​

function DOMAIN_SEPARATOR() external view returns (bytes32)

Returns​

Name	Type	Description
DOMAIN_SEPARATOR	bytes32	EIP-712 domain separator for the exchange​

WETH​

function WETH() external view returns (address)

Returns​

Name	Type	Description
WETH	address	address of the WETH ("Wrapped Ether") contract

authorizationManager​

function authorizationManager() external view returns (contract IAuthorizationManager)

Returns​

Name	Type	Description
authorizationManager	contract IAuthorizationManager	address of the AuthorizationManager

currencyManager​

function currencyManager() external view returns (contract ICurrencyManager)

Returns​

Name	Type	Description
currencyManager	contract ICurrencyManager	address of the CurrencyManager

executionManager​

function executionManager() external view returns (contract IExecutionManager)

Returns​

Name	Type	Description
executionManager	contract IExecutionManager	address of the ExecutionManager

royaltyFeeManager​

function royaltyFeeManager() external view returns (contract IRoyaltyFeeManager)

Returns​

Name	Type	Description
royaltyFeeManager	contract IRoyaltyFeeManager	address of the RoyaltyFeeManager

transferManager​

function transferManager() external view returns (contract ITransferManager)

Returns​

Name	Type	Description
transferManager	contract ITransferManager	address of the TransferManager contract

interceptorManager​

function interceptorManager() external view returns (contract IInterceptorManager)

Returns​

Name	Type	Description
interceptorManager	contract IInterceptorManager	address of the InterceptorManager contract

isUserOrderNonceExecutedOrCancelled​

function isUserOrderNonceExecutedOrCancelled(address user, uint256 orderNonce) external view returns (bool)

Check whether user order nonce is executed or cancelled

Parameters​

Name	Type	Description
user	address	address of user
orderNonce	uint256	nonce of the order

Returns​

Name	Type	Description
-	bool	whether the user order nonce is executed or cancelled (for cancels, it needs to be checked against the minOrderNonce too)

protocolFeeRecipient​

function protocolFeeRecipient() external view returns (address)

Returns​

Name	Type	Description
protocolFeeRecipient	address	address of the protocol fee recipient

owner​

function owner() external view returns (address)

Returns the address of the current owner.

Returns​

Name	Type	Description
owner	address	address of the current owner

userMinOrderNonce​

function userMinOrderNonce(address) external view returns (uint256)

Parameters​

Name	Type	Description
user	address	user address

Returns​

Name	Type	Description
minOrderNonce	uint256	minimum order nonce that defines the validity of user orders. If an order has a nonce inferior to the minOrderNonce, it cannot be executed.

Events

CancelAllOrders​

event CancelAllOrders(address indexed user, uint256 newMinNonce)

Parameters​

Name	Type	Description
user indexed	address	user address
newMinNonce	uint256	new minimum order nonce

NewAuthorizationManager​

event NewAuthorizationManager(address indexed authorizationManager)

Parameters​

Name	Type	Description
authorizationManager indexed	address	address of the new AuthorizationManager

NewCurrencyManager​

event NewCurrencyManager(address indexed currencyManager)

Parameters​

Name	Type	Description
currencyManager indexed	address	address of the new CurrencyManager

NewExecutionManager​

event NewExecutionManager(address indexed executionManager)

Parameters​

Name	Type	Description
executionManager indexed	address	address of the new ExecutionManager

NewProtocolFeeRecipient​

event NewProtocolFeeRecipient(address indexed protocolFeeRecipient)

Parameters​

Name	Type	Description
protocolFeeRecipient indexed	address	address of the new protocol fee recipient

NewRoyaltyFeeManager​

event NewRoyaltyFeeManager(address indexed royaltyFeeManager)

Parameters​

Name	Type	Description
royaltyFeeManager indexed	address	address of the new RoyaltyFeeManager

NewTransferManager​

event NewTransferManager(address indexed transferManager)

Parameters​

Name	Type	Description
transferManager indexed	address	address of the new TransferManager

NewInterceptorManager​

event NewInterceptorManager(address indexed interceptorManager)

Parameters​

Name	Type	Description
interceptorManager indexed	address	address of the new InterceptorManager

OwnershipTransferred​

event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)

Parameters​

Name	Type	Description
previousOwner indexed	address	address of the previous owner
newOwner indexed	address	address of the new owner

RoyaltyPayment​

event RoyaltyPayment(address indexed collection, uint256 indexed tokenId, address indexed royaltyRecipient, address currency, uint256 amount)

Parameters​

Name	Type	Description
collection indexed	address	collection address
tokenId indexed	uint256	tokenId
royaltyRecipient indexed	address	royalty fee recipient
currency	address	currency used (e.g., WETH)
amount	uint256	royalty amount transferred

ProtocolFeePayment​

event ProtocolFeePayment(address indexed collection,uint256 indexed tokenId,address indexed protocolFeeRecipient,address currency,uint256 amount);

Parameters​

Name	Type	Description
collection indexed	address	collection address
tokenId indexed	uint256	tokenId
protocolFeeRecipient indexed	address	protocol fee recipient
currency	address	currency used (e.g., WETH)
amount	uint256	royalty amount transferred

TakerAsk​

event TakerAsk(bytes32 orderHash, uint256 orderNonce, address indexed taker, address indexed maker, address indexed strategy, address currency, address collection, uint256 tokenId, uint256 amount, uint256 price)

Parameters​

Name	Type	Description
orderHash	bytes32	order hash
orderNonce	uint256	user order nonce (for the maker)
taker indexed	address	taker address
maker indexed	address	maker address
strategy indexed	address	address of the execution strategy
currency	address	currency address
collection	address	collection address
tokenId	uint256	tokenId
amount	uint256	amount of tokens transferred
price	uint256	gross transaction price

TakerBid​

event TakerBid(bytes32 orderHash, uint256 orderNonce, address indexed taker, address indexed maker, address indexed strategy, address currency, address collection, uint256 tokenId, uint256 amount, uint256 price)

Parameters​

Name	Type	Description
orderHash	bytes32	order hash
orderNonce	uint256	user order nonce (for the maker)
taker indexed	address	taker address
maker indexed	address	maker address
strategy indexed	address	address of the execution strategy
currency	address	currency address
collection	address	collection address
tokenId	uint256	tokenId
amount	uint256	amount of tokens transferred
price	uint256	gross transaction price