SOAP on Rails, can not call a method with WSDL using Savon

Question

I want to use a financial institution webservice to "verifyTransaction" The method gets two strings as input and return a double as output.

double verifyTransaction (
String      RefNum, 
String      MerchantID
)

I used Savon in rails 3.1 to call the method.

client = Savon::Client.new do |wsdl|
    wsdl.document = "https://acquirer.sb24.com/ref-payment/ws/ReferencePayment?WSDL"
end

response = client.request :wsdl, "verifyTransaction" do
  soap.body ={"RefNum" => "ReferenceNumber", "MerchantID" => "MymerchantId"}
end

but the I got this error:

Savon::SOAP::Fault ((env:Client) caught exception while handling request: unexpected encoding style: expected=http://schemas.xmlsoap.org/soap/encoding/, actual=)

Any thought on how to solve this?

Answer 1

I solved the problem by using SoapUI.

I've opened the WSDL in SoapUI, generate a sample requests and copy/paste it into Savon like this:

client = Savon::Client.new do |wsdl|
    wsdl.document = "https://acquirer.sb24.com/ref-payment/ws/ReferencePayment?WSDL"
end

response = client.request "verifyTransaction" do
  soap.xml = 'XML will be here'
end

It worked fine! :)