How to integrate shop into EE 3 site?

Hi,

Our client has an EE 3 powered website and an OXID eSales shop. Both run on two separate domains.

The client is very happy with his EE 3 website and now wants to integrate the shop products directly into his website, so that clients won’t have to go to the (external) shop domain any more.

Is this possible with EE 3? What would be the standard / best way of pulling products from an external shop system and embedding them into my own website?

Thanks for any help.