IBaseOracle

Basic interface for a system price feed All price feeds should be translated into an 18 decimals format

Functions

Symbol of the quote: token / baseToken (e.g. 'ETH / USD')

function symbol() external view returns (string memory _symbol);

Fetch the latest oracle result and whether it is valid or not

This method should never revert

function getResultWithValidity() external view returns (uint256 _result, bool _validity);

Fetch the latest oracle result

Will revert if is the price feed is invalid

function read() external view returns (uint256 _value);

error InvalidPriceFeed();