Get Product quantity and add to basket/shop cart via API
We are coding on an existing (free) theme (in rain) and having issues getting products quantity as we now learned we need an API key. Since today we have a API key but how to get a product quantity without coding a theme?
We understand we can't do this in the RAIN files but can do this via the API. Support recommended us to post our issue on this community.
Anyone who can help us how to get a product quantity and add to basket/shopcard.