Call to Amazon Product Advertising API results in error due to unregistered stub

[sbambey]

I am stubbing a request to the Amazon Product advertising exactly as is recommended in the error message I am receiving:

Failure/Error: service_response = service.search
     WebMock::NetConnectNotAllowedError:
       Real HTTP connections are disabled. Unregistered request: GET http://webservices.amazon.com/onca/xml?AWSAccessKeyId=AKIAIWO3OEDYYTGZ5HOQ&AssociateTag=readinglist09-20&IdType=ISBN&ItemId=9780313364587&Operation=ItemLookup&ResponseGroup=ItemAttributes&SearchIndex=Books&Service=AWSECommerceService&Signature=kPXl6Vdrk0J%2BCkX1vEHZiyLNJJNOHoKCJUnzVhd5gkI=&SignatureMethod=HmacSHA256&SignatureVersion=2&Timestamp=2015-03-08T01:21:47Z&Version=2011-08-01 with headers {'Host'=>'webservices.amazon.com', 'User-Agent'=>'Jeff/1.2.0 (Language=Ruby; Simons-MacBook-Pro-2.local)'}

       You can stub this request with the following snippet:

       stub_request(:get, "http://webservices.amazon.com/onca/xml?AWSAccessKeyId=AKIAIWO3OEDYYTGZ5HOQ&AssociateTag=readinglist09-20&IdType=ISBN&ItemId=9780313364587&Operation=ItemLookup&ResponseGroup=ItemAttributes&SearchIndex=Books&Service=AWSECommerceService&Signature=kPXl6Vdrk0J%2BCkX1vEHZiyLNJJNOHoKCJUnzVhd5gkI=&SignatureMethod=HmacSHA256&SignatureVersion=2&Timestamp=2015-03-08T01:21:47Z&Version=2011-08-01").
         with(:headers => {'Host'=>'webservices.amazon.com', 'User-Agent'=>'Jeff/1.2.0 (Language=Ruby; Simons-MacBook-Pro-2.local)'}).
         to_return(:status => 200, :body => "", :headers => {})

       registered request stubs:

       stub_request(:get, "http://webservices.amazon.com/onca/xml?AWSAccessKeyId=AKIAIWO3OEDYYTGZ5HOQ&AssociateTag=readinglist09-20&IdType=ISBN&ItemId=9780313364587&Operation=ItemLookup&ResponseGroup=ItemAttributes&SearchIndex=Books&Service=AWSECommerceService&Signature=am8BWpCI8de53jAYR2%2B6rGEr/UxwY/0fJz%2BDRVyNo%2Bc=&SignatureMethod=HmacSHA256&SignatureVersion=2&Timestamp=2015-03-08T01:16:12Z&Version=2011-08-01").
         with(:headers => {'Host'=>'webservices.amazon.com', 'User-Agent'=>'Jeff/1.2.0 (Language=Ruby; Simons-MacBook-Pro-2.local)'})

My code can be seen here:

require 'rails_helper'

RSpec.describe AmazonBooksService do
  let(:service) { AmazonBooksService.new({isbns: ["9780313364587"]}) }

  subject { service }

  it "searches google books and returns proper item" do
    api_response = File.new "#{Rails.root}/spec/services/amazon_books_canned_response.xml"
    stub_request(:get, "http://webservices.amazon.com/onca/xml?AWSAccessKeyId=AKIAIWO3OEDYYTGZ5HOQ&AssociateTag=readinglist09-20&IdType=ISBN&ItemId=9780313364587&Operation=ItemLookup&ResponseGroup=ItemAttributes&SearchIndex=Books&Service=AWSECommerceService&Signature=am8BWpCI8de53jAYR2%2B6rGEr/UxwY/0fJz%2BDRVyNo%2Bc=&SignatureMethod=HmacSHA256&SignatureVersion=2&Timestamp=2015-03-08T01:16:12Z&Version=2011-08-01").
         with(:headers => {'Host'=>'webservices.amazon.com', 'User-Agent'=>'Jeff/1.2.0 (Language=Ruby; Simons-MacBook-Pro-2.local)'}).
         to_return(:status => 200, :body => "", :headers => {})
    service_response = service.search
    expect(service_response["ItemAttributes"]["ISBN"]).to_not be_nil
  end
end

Note the missing to_return in the registered stub. I can't seem to figure out what I am doing wrong.

[bblimke]

@sbambey you are making signed requests to AWS so each request has a unique signature and timestamp.

I suggest you use partial query matching and only focus on these attributes that don't change: https://github.com/bblimke/webmock#matching-partial-query-params-using-hash

[sbambey]

That solved it for me. Thanks so much!