RelayPoolNativeGateway
Solidity API
RelayPoolNativeGateway
Gateway contract for depositing and withdrawing native ETH to/from WETH-based RelayPools
Handles wrapping/unwrapping of ETH and provides slippage protection for all operations
EthTransferFailed
Error when ETH transfer fails
OnlyWethCanSendEth
Error when contract receives ETH from non-WETH address
RemainingEth
Error when ETH remains in contract after operation
SlippageExceeded
Error when slippage protection is triggered
WETH
The Wrapped ETH (WETH) contract
Used to wrap/unwrap native ETH for pool operations
constructor
Initializes the gateway with the WETH contract address
Parameters
| Name | Type | Description |
|---|---|---|
| wethAddress | address | Address of the Wrapped Native token contract |
deposit
Deposits native ETH into a WETH-based pool
Wraps ETH to WETH, then deposits to the pool with slippage protection
Parameters
| Name | Type | Description |
|---|---|---|
| pool | address | The address of the ERC4626 pool to deposit into |
| receiver | address | The address that will receive the pool shares |
| minSharesOut | uint256 | Minimum amount of shares to receive (slippage protection) |
Return Values
| Name | Type | Description |
|---|---|---|
| shares | uint256 | The amount of pool shares minted to the receiver |
mint
Mints pool shares by depositing native ETH
Wraps ETH, calculates shares, then mints with slippage protection
Parameters
| Name | Type | Description |
|---|---|---|
| pool | address | The address of the ERC4626 pool to mint shares from |
| receiver | address | The address that will receive the pool shares |
| minSharesOut | uint256 | Minimum amount of shares to receive (slippage protection) |
Return Values
| Name | Type | Description |
|---|---|---|
| shares | uint256 | The amount of pool shares minted to the receiver |
withdraw
Withdraws a specific amount of native ETH from a WETH-based pool
Withdraws WETH from pool, unwraps to ETH, with slippage protection
Parameters
| Name | Type | Description |
|---|---|---|
| pool | address | The address of the ERC4626 pool to withdraw from |
| assets | uint256 | Amount of native ETH to withdraw |
| receiver | address | The address that will receive the native ETH |
| maxSharesIn | uint256 | Maximum amount of shares to burn (slippage protection) |
Return Values
| Name | Type | Description |
|---|---|---|
| shares | uint256 | The amount of pool shares burned |
redeem
Redeems pool shares for native ETH
Redeems shares for WETH, unwraps to ETH, with slippage protection
Parameters
| Name | Type | Description |
|---|---|---|
| pool | address | The address of the ERC4626 pool to redeem from |
| shares | uint256 | Amount of pool shares to redeem |
| receiver | address | The address that will receive the native ETH |
| minAssetsOut | uint256 | Minimum amount of ETH to receive (slippage protection) |
Return Values
| Name | Type | Description |
|---|---|---|
| assets | uint256 | The amount of native ETH sent to receiver |
safeTransferETH
Safely transfers ETH to an address
Reverts if the ETH transfer fails
Parameters
| Name | Type | Description |
|---|---|---|
| to | address | Recipient of the ETH transfer |
| value | uint256 | Amount of ETH to transfer |
receive
Receives ETH only from WETH contract
Required for WETH unwrapping operations