Trandent API
POST
Send Url :: http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.xchange%20where%20pair%3D%22USDKRW%22&format=xml&diagnostics=true&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys
1. 환율기준
USDKRW - 미국
JPYKRW - 일본
EURKRW - 유럽
CNYKRW - 중국 등
2. 포맷
xml or json
호출 결과
1. xml
2. json
