Develop apps that need to use Shopify Plus only features

[TamirK]

I'm trying to develop a custom app for a Shopify plus merchant that creates giftcards using the Shopify CLI. The merchant created a sandbox store in his plus organisation as per my request because the gifcard API is only available for plus stores.

The problem is you can't choose a plus store when running 'npm run dev' (not even a plus sandbox store). There are some workarounds but none of them are as good as being able to run the dev environment and connect it to the store.

Is there a way to either have access to the giftcard API on a development store or to run the 'npm run dev' command on a plus store? There is no "developer preview" on development store that grants you access to Shopify plus features (giftcard API or others)