Savon + Rails 2 How to modify XML's request structure - ruby-on-rails

Question

I'm using Savon to develop a Web Service Client. Since I'm a beginner I decided to try at first with an example WDSL, which in my case is:
http://www.webservicex.com/CurrencyConvertor.asmx?wsdl
My controller is very simple:
require 'savon'
class WebServiceController < ApplicationController
def index
puts "web_service: IN"
client = Savon::Client.new do
wsdl.document = "http://www.webservicex.com/CurrencyConvertor.asmx?wsdl"
end
response = client.request :conversion_rate do
soap.body = {
:from_currency => 'USD',
:to_currency => 'EUR'
}
end
puts response.to_hash;
render :text => response.to_hash
end
end
The XML produced by that code is:
<env:Envelope xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:wsdl="http://www.webserviceX.NET/"
xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
<env:Body>
<ConversionRate>
<wsdl:fromCurrency>USD</wsdl:fromCurrency>
<wsdl:toCurrency>EUR</wsdl:toCurrency>
</ConversionRate>
</env:Body>
</env:Envelope>
However, the XML should be (and I know this because I'm using soapUI):
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:web="http://www.webserviceX.NET/">
<soapenv:Header/>
<soapenv:Body>
<web:ConversionRate>
<web:FromCurrency>USD</web:FromCurrency>
<web:ToCurrency>EUR</web:ToCurrency>
</web:ConversionRate>
</soapenv:Body>
</soapenv:Envelope>
I know my XML Request isn't working because I always get '0' (zero) as response, and with the "right" XML Request generated by soapUI I get correct values (such as '0.6959' ...).
Is something missing in my code?
Thank you!!!

Answer 1

two things:
you need to add :wsdl to the call
you need to make sure the spelling of the tags is correct
change to
response = client.request :wsdl, :conversion_rate do
and to
"FromCurrency" => 'USD',
"ToCurrency" => 'EUR'
that should do it for you.