WstETHInvertCenterPrice

Gets the exchange rate between wstETH and stETH directly from the wstETH contract: wstETH per stETH.

constructor

constructor(string infoName_, contract IWstETH wstETH_) public

constructor sets the wstETH wstETH_ token address.

centerPrice

function centerPrice() external view returns (uint256 price_)

Retrieves the center price for the pool

This function is marked as non-constant (potentially state-changing) to allow flexibility in price fetching mechanisms. While typically used as a read-only operation, this design permits write operations if needed for certain token pairs (e.g., fetching up-to-date exchange rates that may require state changes).

Return Values

Name	Type	Description
price_	uint256	The current price ratio of token1 to token0, expressed with 27 decimal places