I annoyed the forum now a couple of times regarding the Amazon Product Advertising API (sorry guys…). The incredible guys from https://airdev.co/ @gaurav now helped me and have setup the API Call for me.
The only problem is that the API Call requires a signature and a timestamp. The signature is a “base64-encoded HMAC-SHA256 signature” (see here for more information: http://docs.aws.amazon.com/AWSECommerceService/latest/DG/HMACSignatures.html)
Since I am really clueless and far away from a coder I am posting @gaurav’s answer to me:
"It looks like there are 2 more parameters required: Signature and Timestamp. The endpoint doesnt seem to accept unsigned requests (i.e. without signature)
_Couldnt get it to work due to requirement of a ‘base64-encoded HMAC-SHA256 signature’ to be generated by using the access key."
Is this something where you can help us out here? This is really the last big issue which is keeping me away from publishing my app. I am sorry for annoying you guys I know you have enough things on your list but if you could help out here I would really appreciate it.