Warning: deeply dull post ahead. But, we’ve had a lot of discussion about bookdata, APIs, and Amazon on this blog, so it would be remiss of me not to post this.
From August 15th, Amazon requires all API requests to be signed, which to the layman means that you need to add a timestamp, and a ‘signature’, which is a hash of the entire request, and your private Amazon key.
There are a bunch of PHP examples for doing this on the web, but because I had to tweak them all slightly to get them to work, I…
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