Service
<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.
http://ecs.amazonaws.comonca/xml? Service=AWSECommerceService& Operation=ItemSearch& SearchIndex=Books& Keywords=Saving%20Miss%20Oliver's