A Currency broker company has asked us to build a system that notifies them when a currency pair rate reaches the target rate. User configures the currency pair and target rate.
The URL to get the Rates in XML form: “http://rates.fxcm.com/RatesXML”
Example of the rate:
<Rate Symbol=”EURUSD”
<Bid1.38022</Bid
<Ask1.38042</Ask
<High1.38266</High
<Low1.37634</Low
<Direction0</Direction
<Last10:42:43</Last
</Rate
Here “Bid” is the current rate. “Ask” is the suggested sell rate. “High” is day high, “Low” is day low, “Direction” is 1=up, -1=down, 0=no change compared to last rate, and “Last” is the time for last tick.
Design considerations:
———————-
1. You will need a parser to parse the XML. There are several examples online.
2. Start with hard coded user configuration. For example. Pair: EURUSD, Target rate: 1.381
3. Make it user entry once you have working code.
4. You will periodically check the rates, consider using a schedular.
4. For notification, we will assume that there is a system that will be called to notify users. You only display it on the screen if target has been reached.
