From: Ben Schumacher <ben@...>
Date: 2003-02-11T07:19:30+09:00
Subject: Trying to build Amazon Web Service class using SOAP4R

Hello-

I'm working on a class to provide easy access to the Amazon Web Service 
API (http://www.amazon.com/webservices/), and am having some weird 
results using SOAP4R. Admittedly, this is the first time I've done 
anything with SOAP, so I have limtied understanding, but I believe I'm 
getting some sort of error in the SOAP4R library, rather than an error 
from Amazon's interface.

Here's a simple program that I've written to access the interface:

#!/usr/local/bin/ruby
require 'soap/driver'

soap = SOAP::Driver.new(nil, nil, 'http://soap.amazon.com',
                         'http://soap.amazon.com/onca/soap2')
soap.addMethodWithSOAPAction('KeywordSearchRequest',
                              'http://soap.amazon.com',
                              'type', 'tag', 'devtag',
                              'mode', 'keyword')
r = soap.send('KeywordSearchRequest', 'soap', 'cyalchemy',
               'D3OSAD7T5NR887', 'books', 'dogs')

p r

My response ends up being:

: Can't use string ("soap") as a HASH ref while "strict refs" in use 
(SOAP::FaultError)

Does this make any sense to anybody?

FYI- The WSDL for Amazon's Web Service API can be found at:
	http://soap.amazon.com/schemas/AmazonWebServices.wsdl

Any help would be greatly appreciated.

bs.