WETH Gateway

If you need to use native ETH in the protocol, it must first be wrapped into WETH. The WETH Gateway contract is a helper contract to easily wrap and unwrap ETH as necessary when interacting with the protocol, since only ERC20 is used within protocol interactions.

Methods

depositETH

function depositETH(address onBehalfOf, uint16 referralCode)

Deposits WETH into the reserve, using native ETH. A corresponding amount of the overlying asset (bTokens) is minted.

Parameter Name	Type	Description
onBehalfOf	address	The address of the user who will receive the bTokens representing the deposit
referralCode	uint16	referral code for our referral program. Use 0 for no referral

withdrawETH

function withdrawETH(uint256 amount, address to)

Withdraws the WETH _reserves of msg.sender.

Parameter Name	Type	Description
amount	uint256	amount of aWETH to withdraw and receive native ETH
to	address	address of the user who will receive native ETH

borrowETH

function borrowETH( uint256 amount, address nftAsset, uint256 nftTokenId, address onBehalfOf, uint16 referralCode )

Borrow WETH, unwraps to ETH and send both the ETH and DebtTokens to msg.sender, via onBehalf argument in LendPool.borrow.

Parameter Name	Type	Description
amount	uint256	the amount of ETH to borrow
nftAsset	address	The address of the underlying NFT used as collateral
nftTokenId	uint256	The token ID of the underlying NFT used as collateral
onBehalfOf	address	Address of the user who will receive the loan. Should be the address of the borrower itself calling the function if he wants to borrow against his own collateral, or the address of the credit delegator if he has been given credit delegation allowance
referralCode	uint16	referral code for our referral program. Use 0 for no referral.

repayETH

function repayETH( address nftAsset, uint256 nftTokenId, uint256 amount )

Repays a borrow on the WETH reserve, for the specified amount (or for the whole amount, if type(uint256).max is specified).

Parameter Name	Type	Description
nftAsset	address	The address of the underlying NFT used as collateral
nftTokenId	uint256	The token ID of the underlying NFT used as collateral
amount	uint256	the amount to repay, or type(uint256).max if the user wants to repay everything

auctionETH

function auctionETH( address nftAsset, uint256 nftTokenId, address onBehalfOf )

Auction a borrow on the WETH reserve.

Parameter Name	Type	Description
nftAsset	address	The address of the underlying NFT used as collateral
nftTokenId	uint256	The token ID of the underlying NFT used as collateral
onBehalfOf	address	Address of the user who will receive the loan. Should be the address of the borrower itself calling the function if he wants to borrow against his own collateral, or the address of the credit delegator if he has been given credit delegation allowance

redeemETH

function redeemETH( address nftAsset, uint256 nftTokenId, uint256 amount, uint256 bidFine)

Redeems a borrow on the WETH reserve.

Parameter Name	Type	Description
nftAsset	address	The address of the underlying NFT used as collateral
nftTokenId	uint256	The token ID of the underlying NFT used as collateral
amount	uint256	The amount to repay the debt
bidFine	uint256	The amount of bid fine

liquidateETH

function liquidateETH( address nftAsset, uint256 nftTokenId, uint256 amount)

Liquidates a borrow on the WETH reserve.

Parameter Name	Type	Description
nftAsset	address	The address of the underlying NFT used as collateral
nftTokenId	uint256	The token ID of the underlying NFT used as collateral
amount	uint256	The extra amount to repay the debt