You need the upc scan, it is part of the Query parameters. Issue is in the API response, not the parameters.
I tested by adding the UPC code in the Query parameters, and as you can see it gave results (This UPC code existed in the DB), but the response is still not properly formatted for Adalo.
If you take a look at the Cocktails API and add “drinks” to the “Results Key” it returns a proper array:
As I mentioned, ADALO cannot handle the 1 Result “JSON Object”.