Integration: Custom Oracle

For advanced users, you can integrate your own data feeds into Foresure markets.

The IOracle Interface

Any contract that implements the IOracle interface can be used as a resolution source.

interface IOracle {
    function getOutcome(bytes32 marketId) external view returns (uint256);
    function isFinalized(bytes32 marketId) external view returns (bool);
}

Using Chainlink

You can wrap a Chainlink Price Feed to resolve scalar markets.

contract ChainlinkAdapter is IOracle {
    AggregatorV3Interface internal priceFeed;

    constructor(address _feed) {
        priceFeed = AggregatorV3Interface(_feed);
    }

    function getOutcome(bytes32) external view returns (uint256) {
        (, int price, , , ) = priceFeed.latestRoundData();
        return uint256(price);
    }
}

Using API3 / Pyth

Similar adapters can be built for API3 Airnodes or Pyth Network updates, allowing for low-latency resolution of crypto price markets.