IWstETH

Inherits: IERC20Metadata, IERC20Permit

Functions

Exchanges stETH to wstETH

*Requirements:

_stETHAmount must be non-zero
msg.sender must approve at least _stETHAmount stETH to this contract
msg.sender must have at least _stETHAmount of stETH User should first approve _stETHAmount to the wstETH contract*

function wrap(uint256 _stETHAmount) external returns (uint256);

Parameters

Name	Type	Description
`_stETHAmount`	`uint256`	The amount of stETH to wrap in exchange for wstETH

Returns

Name	Type	Description
`<none>`	`uint256`	Amount of wstETH user receives after wrap

Exchanges wstETH to stETH

*Requirements:

function unwrap(uint256 _wstETHAmount) external returns (uint256);

Parameters

Name	Type	Description
`_wstETHAmount`	`uint256`	The amount of wstETH to unwrap in exchange for stETH

Returns

Name	Type	Description
`<none>`	`uint256`	The amount of stETH user receives after unwrap

Get the amount of wstETH for a given amount of stETH

function getWstETHByStETH(uint256 _stETHAmount) external view returns (uint256);

Parameters

Name	Type	Description
`_stETHAmount`	`uint256`	The amount of stETH

Returns

Name	Type	Description
`<none>`	`uint256`	The amount of wstETH for a given stETH amount

Get the amount of stETH for a given amount of wstETH

function getStETHByWstETH(uint256 _wstETHAmount) external view returns (uint256);

Parameters

Name	Type	Description
`_wstETHAmount`	`uint256`	The amount of wstETH

Returns

Name	Type	Description
`<none>`	`uint256`	The amount of stETH for a given wstETH amount

Get the amount of stETH for a one wstETH

function stEthPerToken() external view returns (uint256);

Returns

Name	Type	Description
`<none>`	`uint256`	The amount of stETH for 1 wstETH

Get the amount of wstETH for a one stETH

function tokensPerStEth() external view returns (uint256);

Returns

Name	Type	Description
`<none>`	`uint256`	The amount of wstETH for a 1 stETH

Get the address of stETH

function stETH() external view returns (address);

Returns

Name	Type	Description
`<none>`	`address`	The address of stETH