iPhone and HMAC-SHA-1 encoding

Question

im trying to get a call to amazon web service and im stuck on getting the signature, looked at this but i still have a question on it.

using this example what is th

Answer 1

If you are calling the Amazon web service too look up prices or product details, your Amazon web service key will be disabled and your app will stop working.

Look at the terms of service of the Amazon Web Services, use by mobile clients is strictly disallowed:

https://affiliate-program.amazon.com/gp/advertising/api/detail/agreement.html

I found this out the hard way when my own application had my AWS key disabled in a production app. I had read the TOS, but it was not really there as you can see by the link above to some other obscure detail of use. You wouldn't think the affiliate program would have anything to do with the API, but it does.

You can find details of other apps blocked at this TechCrunch article:

http://www.techcrunch.com/2009/07/07/amazon-killing-mobile-apps-that-use-its-data/

Just giving you a heads up and hopefully saving you a lot of work.