When accessing any Amazon.com web service, including A2S, you can send the request
either by using REST or by sending a SOAP message. The web service will return an XML
response with the data you requested.
In this chapter, we??™ll touch just a bit of the functionality provided by the Amazon AWS,
and even by A2S in particular. A serious discussion on the subject would need a separate book,
but what you??™ll see in this chapter is enough to get you on the right track. Also, be aware that
in this chapter we integrate functionality from Amazon U.S., but using the same AWS account,
you can access services from Amazon.fr, Amazon.ca, Amazon.de, Amazon.co.jp, and Amazon.co.uk.
Creating Your Amazon.com Web Services Account
The official AWS web site is located at http://www.amazon.com/webservices. You can find the
latest version of the documentation at http://developer.amazonwebservices.com/connect/??”
be sure to bookmark this URL because you??™ll find it very useful.
Before moving on, you need to create your account with AWS. To access AWS, you need an
access key ID, which identifies your account in the AWS system. If you don??™t already have one,
apply now at http://www.amazon.com/gp/aws/registration/registration-form.html. The
access key ID is a 20-character alphanumeric string.
?– Note Before October 11, 2005, Amazon.com used to provide something called a subscription ID, instead
of an access key ID.
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