Retrieve currency exchange rates from Yahoo! Finance.
The Yahoo! Finance Service
URL to fetch the AUD to USD exchange rate
Although the Yahoo! service supports multiple rates values from one request, this class does not yet support this functionality yet.
$ curl "http://download.finance.yahoo.com/d/quotes.csv?s=USDCAD=X+JPYUSD=X+GBPUSD=X+USDJPY=X+EURUSD=X&f=nl1d1t1" "USD to CAD",1.0191,"6/18/2008","2:45am" "JPY to USD",0.0093,"6/18/2008","2:45am" "GBP to USD",1.9514,"6/18/2008","2:44am" "USD to JPY",108.085,"6/18/2008","2:45am" "EUR to USD",1.5493,"6/18/2008","2:44am"
So easy to use, even a baby could find out what his currency is trading at.
Tested with Ruby 1.8.7 and 1.9.1
exchange_rate = YahooCurrency.get_rate!("JPY", "USD") exchange_rate.from #=> "JPY" exchange_rate.to #=> "USD" exchange_rate.rate #=> 0.0111 exchange_rate.timestamp #=> Wed Feb 11 22:20:00 +0800 2009
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