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Product Advertising API
Developer Guide (API Version 2013-08-01)

Service

The Service segment of the WSDL specifies the web service used, which, in this case, is Product Advertising API, as shown in the following WSDL snippet:

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<service name="AWSECommerceService"> <port name="AWSECommerceServicePort" binding="tns:AWSECommerceServiceBinding"> <soap:address location= "http://soap.amazon.com/onca/soap?Service= AWSECommerceService" /> </port> </service>

This information changes very rarely and so you need not pay much attention to it.

Every Product Advertising API request includes this service declaration, as shown in the following example.

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http://webservices.amazon.com/onca/xml? Service=AWSECommerceService& Operation=ItemSearch& SearchIndex=Books& Keywords=Saving%20Miss%20Oliver's &Timestamp=[YYYY-MM-DDThh:mm:ssZ] &Signature=[Request Signature]