Sprouter commented on How do I get Product Variant Quantity using AJAX ?

So I have the following : 

product id : 389718792

variant id : 1043488712

and I want to get a JSON that will contain the inventory amount for the above variant

I'm trying this path :

https://xxxxx.myshopify.com/products/#389718792/variants/#1043488712

but I get nothing. Not sure what the correct syntax should be I'm afraid.

Thanks for your help by the way !