Best way\place to get currency data

Dark Light · 30 Mar 2013 at 19:41

I am writing a Windows Store app that needs to get currencies from the internet, what is the best way to do this?

Mr^B · 30 Mar 2013 at 21:29

Can you be a bit more specific? Do you mean a list of currency ISO codes? A list of exchange rates? If so, what exchange rates do you need?

Pho · 30 Mar 2013 at 21:42

If you're after exchange rates the Yahoo Finance API seems to be used by a fair few things. OpenCart uses it. Here's their function.

You'd just have to construct a dynamic URL including the currencies you want as a comma seperated list, curAcurB=X. E.g. for GBP to USD, GBP to EUR and GBP to JPY:

http://download.finance.yahoo.com/d/quotes.csv?s=GBPUSD=X,GBPEUR=X,GBPJPY=X&f=sl1&e=.csv

Dark Light · 30 Mar 2013 at 22:03

Mr^B said:
Can you be a bit more specific? Do you mean a list of currency ISO codes? A list of exchange rates? If so, what exchange rates do you need?

I want a list of exchange rates.

Pho said:
If you're after exchange rates the Yahoo Finance API seems to be used by a fair few things. OpenCart uses it. Here's their function.

You'd just have to construct a dynamic URL including the currencies you want as a comma seperated list, curAcurB=X. E.g. for GBP to USD, GBP to EUR and GBP to JPY:

http://download.finance.yahoo.com/d/quotes.csv?s=GBPUSD=X,GBPEUR=X,GBPJPY=X&f=sl1&e=.csv

Thanks, that is what I was looking for, any idea on how to use this with C++?

Also, random question, do you have to use Windows 8 and Visual Studio 2012 for Windows Store apps?

uniQ · 30 Mar 2013 at 22:15

I've used Google currency API in a couple of projects:

Sample URL:
http://www.google.com/ig/calculator?hl=en&q=1GBP=?EUR

Also open exchange rates has a good API:
https://openexchangerates.org/

Pho · 30 Mar 2013 at 23:45

Dark Light said:
Thanks, that is what I was looking for, any idea on how to use this with C++?

Also, random question, do you have to use Windows 8 and Visual Studio 2012 for Windows Store apps?

Never used these, but you could use libcurl to download the file then parse it it with either your own CSV reader (not too difficult) or something like csvlib.

Mr^B · 2 Apr 2013 at 08:50

+1 for google