CurrencySpy¶ ↑

This is a simple gem composed of simple classes using the Mechanize parser to fetch currency rates from various websites. It’s main purpose was to collect the data for a small bank loan comparison site. I’ve decided to publish this as a standalone gem in case anybody wishes to fetch some rates in their application. My classes deal mainly with Polish websites. Feel free to write more or request a source.

The gem uses Mechanize to parse sites. I recommend using bundler to easily install any dependencies. Please consult the gemspec for a list of dependencies (including test and development environment).

The plugin can be installed from rubygems:

sudo gem install currency_spy

To install the dependencies:

bundle

You can also clone my GitHub repository (git://github.com/lbadura/currency_spy.git) and build the gem yourself and / or hack on it.

The usage is really simple. To fetch rates from given source just instantiate
a class which represents that source and call fetch_rates on it:
   nbp = CurrencySpy::Nbp.new
   rates = nbp.fetch_rates
   => {:buy_rate=>3.8482, :sell_rate=>3.926, :rate_time=>#<DateTime:2011-01-07T00:00:00+00:00 (4911137/2,0/1,2299161)>}

Feel free to contact me at lukasz@niebo.net. My website: www.badurowie.org

Copyright © 2011 Lukasz Badura. Released under the MIT license.