Ebay API, php - synchronization of leftovers. There are examples?

Question

PHP

There is a store on Ebay, there is a developer account on developer.ebay.com, an ebay account is tied to a developer account - there is a key.
But there is no clear idea how to get the rest of the goods in the store, how to synchronize them with the data in another database - I can’t understand the mechanism.

Answer 1

This is how I get data on the product, but there is no UPC, but I also need a barcode

$url="http://open.api.ebay.com/shopping?callname=GetSingleItem&responseencoding=JSON&appid=my-api-id&siteid=0&version=967&IncludeSelector=galleryURL,Variations,Details,ItemSpecifics&ItemID=ItemID";  
  $item_data=json_decode(trim(file_get_contents($url)));     
   
  print_r($item_data); 
    exit;