Use UPC to look up Amazon Items in addition to ASIN

I don't believe that even the UPC data is available from the Amazon API, not to mention a search based on it. The docs are at http://docs.amazonwebservices.com/AWSECommerceService/latest/DG/index.ht....

-Randy

Ah, I was looking at ItemSearch (and it was too late at night). ItemLookup would be better anyway.

Patches are welcome.

To implement this there would have to be a clear way to distinguish between a UPC, a 10-digit ASIN, and a 13-digit ISBN. I do hate to keep making this more complex. (We added 13-digit ISBN not long ago).

I agree UPC numbers are very important.

Using the Zend Framework:
http://framework.zend.com/manual/en/zend.service.amazon.html

It is possible to use itemSearch for UPC numbers. This should be rather easy to do.

Much like the standard search in Amazon supports it:
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keyw...

Don't know how well this translate to the way you created the module.

Hope it helps.

I needed a function that would allow me to look up ASINs based on UPCs. That function

amazon_upc_lookup($upc);

...and the corresponding table to store the UPC-to-ASIN translation is included in the attached patch. This allows the results to be stored as the usual ISBN lookups are and improves performance.

This patch is against the latest dev as of today.

Although this is an old thread this answer can help people who run into this thread by searching google.
If you are looking for a a way to convert your UPC to ASIN programmatically you can use amazon's tool:
http://webservices.amazon.com/scratchpad/index.html
This tool will generate the code for you.
If you are just looking for a convenient way to convert UPC to ASIN online you can use
http://www.asinlab.com/upc-to-asin/
Search google for 'UPC to ASIN converter" and you can find many others...