Class AssetPriceService

constructor

• new AssetPriceService(__namedParameters: { db: B2bDatabase }): AssetPriceService

  Parameters

  • __namedParameters: { db: B2bDatabase }

  Returns AssetPriceService

Staticinstance

price

• price(__namedParameters: { symbols: string[] }): Promise<{ ok: true; value: T }>

  Each symbol's latest USD price, however old, keyed by the symbol as held. null for a symbol never quoted: the caller shows its amount and leaves it out of a USD total, never counting it as zero.

  Parameters

  • __namedParameters: { symbols: string[] }

  Returns Promise<{ ok: true; value: T }>

series

• series(
      __namedParameters: { from: Instant; symbol: string; to: Instant },
  ): Promise<
      { ok: true; value: { items: { asOf: Instant; usd: BigNumber }[] } },
  >

  One symbol's recorded quotes between from and to inclusive, oldest first. A fixed-price symbol has none.

  Parameters

  • __namedParameters: { from: Instant; symbol: string; to: Instant }

  Returns Promise<{ ok: true; value: { items: { asOf: Instant; usd: BigNumber }[] } }>

value

• value(
      __namedParameters: { holdings: WalletAssetHolding[] },
  ): Promise<{ ok: true; value: HoldingsValuation }>

  Holdings marked to market, for display; an unpriced asset stays out of the total.

  Parameters

  • __namedParameters: { holdings: WalletAssetHolding[] }

  Returns Promise<{ ok: true; value: HoldingsValuation }>