# Using Amazon's WSDL services **URL:** \ **Category:** Ruby\ **Created:** [November 29, 2005, 3:00pm UTC](https://www.ruby-forum.com/t/using-amazons-wsdl-services/49075 "2005-11-29T15:00:31Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![minter](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/278dde/32.png) [@minter](https://www.ruby-forum.com/u/minter)\ **Post date:** [November 29, 2005, 3:00pm UTC](https://www.ruby-forum.com/t/using-amazons-wsdl-services/49075/1 "2005-11-29T15:00:31Z")
I’m trying to create a simple test script to hit Amazon’s web services via their WSDL listing (specifically the Wishlist Lookup). I’m going on the examples in the Pickaxe. Here’s my sample script: ##### #!/usr/bin/env ruby require ‘soap/wsdlDriver’ wsdl = ‘[http://webservices.amazon.com/AWSECommerceService/AWSECommerceService.wsdl](http://webservices.amazon.com/AWSECommerceService/AWSECommerceService.wsdl)’ soap = SOAP::WSDLDriverFactory.new(wsdl).createDriver result = soap.ListLookup ##### However, when I run it, I’m getting a ton of error messages to the screen that look like: Unknown element {[XML Schema](http://www.w3.org/2001/XMLSchema)}annotation. Unknown attr {}ref. Unknown attr {}ref. Followed by a final error like: soap.rb:10: undefined method `ListLookup’ for #SOAP::WSDLDriver:0x84f7898 (NoMethodError) I’m not a WSDL expert, so I’m confused as to whether the problem is on my end, or on the Amazon end. Anyone better-versed than I willing to take a look? Thanks, Wade ---
**Author:** ![minter](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/278dde/32.png) [@minter](https://www.ruby-forum.com/u/minter)\ **Post date:** [November 29, 2005, 4:05pm UTC](https://www.ruby-forum.com/t/using-amazons-wsdl-services/49075/2 "2005-11-29T16:05:22Z")
On 29 Nov 2005, at 13:57, H. Wade M. wrote: > However, when I run it, I’m getting a ton of error messages to the > 0x84f7898\> > (NoMethodError) > > I’m not a WSDL expert, so I’m confused as to whether the problem is > on my > end, or on the Amazon end. Anyone better-versed than I willing to > take a > look? > > Thanks, > Wade Try using the ruby amazon library [http://www.caliban.org/ruby/ruby-amazon.shtml](http://www.caliban.org/ruby/ruby-amazon.shtml) makes this type of thing so easy. I used it to pull album art: require ‘open-uri.rb’ require ‘amazon/search’ include Amazon DEV\_TOKEN = “XXXXXXXXXXXXXXXX” # you need to register to get one of these def getArtwork (artist, album) image = nil re = Regexp.new(album, Regexp::IGNORECASE) print “Looking for #{artist}, #{album} …” req = Search::Request.new(DEV\_TOKEN, nil, ‘uk’) resp = req.artist\_search(artist, ‘music’, Search::LITE) prods = resp.products pr = prods.find {|pr| pr.product\_name =~ re} if pr image = open(pr.image\_url\_small).read print “got artwork\n” else print " not found.\n Possible album names:" prods.each {|pr| puts “\t#{pr.product\_name}”} end sleep 1 # don’t access amazon too quickly image end Dave. ---
**Author:** ![minter](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/278dde/32.png) [@minter](https://www.ruby-forum.com/u/minter)\ **Post date:** [November 29, 2005, 4:33pm UTC](https://www.ruby-forum.com/t/using-amazons-wsdl-services/49075/3 "2005-11-29T16:33:40Z")
Dave B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Try using the ruby amazon library > [Ruby/Amazon](http://www.caliban.org/ruby/ruby-amazon.shtml) > > makes this type of thing so easy. I used it to pull album art: I’d checked that out, but I’m trying to make this as dependent on the Ruby base as possible, so people don’t have to install extra modules. The ruby-amazon is my fallback, but I’d like to get it working with the pure standard soap module. –Wade ---
**Author:** ![minter](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/278dde/32.png) [@minter](https://www.ruby-forum.com/u/minter)\ **Post date:** [November 29, 2005, 4:41pm UTC](https://www.ruby-forum.com/t/using-amazons-wsdl-services/49075/4 "2005-11-29T16:41:46Z")
Although Amazon::Search works, I’d love to see an example that actually uses Soap4r and doesn’t just do the HTTP requests itself. j. On 11/29/05, Dave B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > Here’s my sample script: > > > > look? > > require ‘open-uri.rb’ > > req = Search::Request.new(DEV\_TOKEN, nil, ‘uk’) > > sleep 1 # don’t access amazon too quickly > > image > > end > > Dave. > > > – “Remember. Understand. Believe. Yield! → [http://ruby-lang.org](http://ruby-lang.org)” Jeff W. ---
**Author:** ![minter](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/278dde/32.png) [@minter](https://www.ruby-forum.com/u/minter)\ **Post date:** [February 4, 2006, 10:37am UTC](https://www.ruby-forum.com/t/using-amazons-wsdl-services/49075/5 "2006-02-04T10:37:07Z")
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Sorry for late reply. H. Wade M. wrote: > wsdl = ‘[http://webservices.amazon.com/AWSECommerceService/AWSECommerceService.wsdl](http://webservices.amazon.com/AWSECommerceService/AWSECommerceService.wsdl)’ > > soap = SOAP::WSDLDriverFactory.new(wsdl).createDriver Please call a method ‘create\_rpc\_driver’ instead of ‘createDriver’. ‘createDriver’ should work but it is deprecated method. > result = soap.ListLookup I tried above (with createDriver → create\_rpc\_driver modification) under ruby-1.8.4 and got different result; > /usr/local/lib/ruby/1.8/soap/rpc/driver.rb:230:in `listLookup': wrong number of arguments (0 for 1) (ArgumentError) from /usr/local/lib/ruby/1.8/soap/wsdlDriver.rb:117:in `ListLookup’ > from list.rb:10 I think the method ‘ListLookup’ requires a parameter which is defined as ‘ListLookupRequest’ in the WSDL. soap.listLookup(:ListLookup =\> “123”) returns something for me. Regards, // NaHi -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (Cygwin) iD8DBQFD5HT2f6b33ts2dPkRApM7AKCMNVJnGu+3ztX5pwKZOmWxa7mqsQCgo38M BOd+K0Z7pbMbQTIhYHZsWbw= =yntq -----END PGP SIGNATURE-----