Ruby, Savon with WSDL, Nokogiri

A very simple example on how to call a SOAP Web service with Ruby and Savon. The call returns a XML document. Nokogiri helps to extract the data we're interested in.

How to use Nokogiri with XML namespace in Ruby

I recently wanted to fetch some data published by the ECB in XML format. Ruby + Nokogiri were very handy doing it. The tricky thing was to include the namespace in the XPath query.