Rails - Jul 2006 - Net::HTTP.get_reponse issues ...

Hi,

I''m struggling a bit trying to interface with the Amazon ECS web
service
using Net::HTTP.

The code I''ve got so far is ...

def index
   
    search_artist = ''Pink Floyd''
       
    amazon_params = {''Service'' =>
''AWSECommerceService'',
      ''AWSAccessKeyId'' => ''[Removed for
security]'',
      ''AssociateTag'' => ''[Removed for
security]'',
      ''Operation'' => ''ItemSearch'',
      ''ResponseGroup'' => ''Small,Images'',
      ''SearchIndex'' => ''Music'',
      ''Artist'' => search_artist}.map { |key,value| 
"#{key}=#{value}"}.join("&")
   
   amazon_response =
Net::HTTP.get_response(''webservices.amazon.co.uk'',
''/onca/xml?'' << amazon_params, 80)
   
    @xml = amazon_response.code
   
end

But it will only ever return a 500 - Internal Server Error response, yet 
if I type the URL in manually the response comes back as it should.

This is my first dabble with the Net:HTTP library so I apologize if the 
answer is really simple.

All help would be greatly appreciated.

Thanks

-Mic