INNER CODE UNIT · TypeScript

currencyPair

aelassas/movinin · packages/currency-converter/index.ts:525

      let currencyPair = this.currencyFrom.toUpperCase() + this.currencyTo.toUpperCase()
      let now = new Date()
      if (currencyPair in this.ratesCache && now < this.ratesCache[currencyPair].expiryDate) {
        return new Promise((resolve, _) => {
          resolve(this.ratesCache[currencyPair].rate)
        })
      } else {
        return new Promise((resolve, reject) => {
          Convert(this.currencyAmount).from(this.currencyFrom).to(this.currencyTo)
            .then((res) => resolve(res))
            .catch((err) => reject(err))
        })
          .then((rates: unknown) => {
            const ratesNum = rates as number / this.currencyAmount
            if (this.isRatesCaching) {
              this.addRateToRatesCache(currencyPair, ratesNum)
            }
            return ratesNum

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