Function fetchCryptoRates

src/main/currencyRates.ts:79–105

()

}

async function fetchCryptoRates(): Promise<Record<string, number>> {
  const ids = Object.values(CRYPTO_IDS).join(',')
  const response = await fetch(
    `https://api.coingecko.com/api/v3/simple/price?ids=${ids}&vs_currencies=usd`,
  )

  if (!response.ok) {
    if (response.status === 429) {
      throw new Error('rate_limit')
    }
    throw new Error(
      `Crypto rates request failed with status ${response.status}`,
    )
  }

  const data = (await response.json()) as Record<string, { usd?: number }>
  const rates: Record<string, number> = {}

  for (const [code, coinId] of Object.entries(CRYPTO_IDS)) {
    const usdPrice = data[coinId]?.usd
    if (usdPrice && usdPrice > 0) {
      rates[code] = 1 / usdPrice
    }
  }

  return rates
}

export async function getCurrencyRates(): Promise<CurrencyRatesPayload> {
  const cached = store.currencyRates.get('cache')