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.
The source code can be found here, with the latest deployed address listed in the Deployed Contracts.

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
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Methods
depositETH
withdrawETH
borrowETH
repayETH
auctionETH
redeemETH
liquidateETH