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 ETH is no longer used within protocol interactions.
The source code can be found here, with the latest deployed address listed in the Deployed Contracts.
function depositETH(address onBehalfOf, uint16 referralCode)
Deposits the msg.value
amount of ETH into the protocol, minting the same amount of corresponding aWETH, and transferring them to the onBehalfOf
address.
For referralCode
input explanations, please refer to the referral program section of the documentation. During testing, you can use the referral code: 0
.
Ensure that the depositETH()
transaction also includes the amount of ETH you are depositing in the msg.value
.
Parameter Name | Type | Description |
| address | address whom will receive the aWETH.
Use |
| uint16 | referral code for our referral program. Use 0 for no referral. |
function withdrawETH(uint256 amount, address to)
Withdraws amount
of the WETH, unwraps it to ETH, and transfers the ETH to the to
address.
Ensure you set the relevant ERC20 allowance of aWETH, before calling this function, so the WETHGateway
contract can burn the associated aWETH.
Parameter Name | Type | Description |
| uint256 | amount deposited, expressed in wei units.
Use |
| address | address that will receive the unwrapped ETH |
function repayETH(uint256 amount, uint256 rateMode, address onBehalfOf)
Repays onBehalfOf
's debt amount
of ETH which has a rateMode
.
Ensure that the repayETH()
transaction also includes the amount of ETH you are repaying in the msg.value
.
Parameter Name | Type | Description |
| uint256 | amount to be borrowed, expressed in wei units. Use In case of repayments on behalf of another user, it's recommended to send an |
| uint256 | the type of borrow debt. Stable: 1, Variable: 2 |
| address | address of user who will incur the debt. Use |
function borrowETH(uint256 amount, uint256 interestRateMode, uint16 referralCode)
Borrows amount
of WETH with interestRateMode
, sending the amount
of unwrapped WETH to msg.sender
.
Parameter Name | Type | Description |
| uint256 | amount to be borrowed, expressed in wei units |
| uint256 | the type of borrow debt. Stable: 1, Variable: 2 |
| uint16 | referral code for our referral program. Use 0 for no referral code. |
function getWETHAddress()
Returns the WETH address used by the WETHGateway.
function getAWETHAddress()
Returns the aWETH address used by the WETHGateway.
function getLendingPoolAddress()
Returns the LendingPool address used by the WETHGateway.