Integrate G2A into Shopify

I'm looking for someone who's able to create me a Shopify app that imports G2A products within to my shop, from their API. I need to able to select/filter as to which products get published into the store. I also need to able to control the cut the store takes in-between each purchase, this will be calculated in % during when an order is created to G2A with the API. It has to use the API for the order processing.

The API Documentation: https://www.g2a.com/integration-api/documentation/export/

So the API's would be the following: Get products, create an order, pay order, get order, get order key (Possibly even save it, since the 2nd request does not reveal the key anymore).

Thanks in advance.