Trait hydradx_traits::oracle::AggregatedPriceOracle

pub trait AggregatedPriceOracle<AssetId, BlockNumber, Price> {
    type Error;

    fn get_price(
        asset_a: AssetId,
        asset_b: AssetId,
        period: OraclePeriod,
        source: Source
    ) -> Result<(Price, BlockNumber), Self::Error>;
    fn get_price_weight() -> Weight;
}

An oracle returning a price aggregated over period with the associated oracle age (to allow judging whether the oracle had a chance to settle yet).

Required Associated Types

type Error

Required Methods

fn get_price(
    asset_a: AssetId,
    asset_b: AssetId,
    period: OraclePeriod,
    source: Source
) -> Result<(Price, BlockNumber), Self::Error>

fn get_price_weight() -> Weight

Implementations on Foreign Types

impl<AssetId, BlockNumber, Price> AggregatedPriceOracle<AssetId, BlockNumber, Price> for ()

Default implementation of the oracle trait that always returns Err.

type Error = ()

fn get_price(
    _asset_a: AssetId,
    _asset_b: AssetId,
    _period: OraclePeriod,
    _source: Source
) -> Result<(Price, BlockNumber), Self::Error>

fn get_price_weight() -> Weight

Implementors

impl<AssetId, BlockNumber, Price> AggregatedPriceOracle<AssetId, BlockNumber, Price> for AlwaysPriceOfOnewhere
    Price: One,
    BlockNumber: One,

Mock implementation of the oracle trait that always returns Price::one() and oracle age of BlockNumber::one().

type Error = ()