How to get Exchange rate between two currencies for a certain date

We can utilize the currency module to get the exchange rate between two currencies on a specific date. The following example illustrates the conversion from the Canadian dollar to the US dollar. var canadianAmount = 100; var rate = currency.exchangeRate({ source: ‘CAD’, target: ‘USD’, date: new Date(‘7/28/2015’) }); var usdAmount = canadianAmount * rate;