I use the Selling Partner API for PHP from jlevers (https://github.com/jlevers/selling-partner-api)
Connection works after a lot of reading posts. I can get orders, order items and so on.
Now I want to try to upload product data to amazon.
Is it possible to upload the product in json format ? Or is it normal that we still upload the product data in xml format? I cant find a PHP example with json format.
I found this example: https://spapi.cyou/en/use-case/feeds-api-use-case-guide_2021-06-30.html#xml-feeds
My second question is, if I can get the categories from amazon with a Api call or is it still just an XSD file?