Can U Integrate a Wix Ecommerce Website with Infusionsoft that in the future can be selfmanaged?

Can you please fix my problem? I am starting an online 'familywares' business, which is products for kids and mums mostly like Magic Sand, baby playsuits, feeding necklaces and the like. I have recently signed up to Infusionsoft. I want to sell my products online, and was advised to build a site and link the shopping cart to infusionsoft. So I have done this and about to go live with a site on Wix with a shopping cart/ecommerce only to be informed, contrary to what I was told, that to link Wix site to Infusionsoft I need API's and therefore I need someone experienced in infusionsoft to link the two shopping carts/purchasing process.. I also need integration of the information that on both sites is duplicated and key to the site is a smooth and positive customer purchasing experience as well. Open to suggestions for what is the best solution - is it get a better site template then Wix? What is the best practice for using Infusionsoft and an external shopping cart? I need a better solution that I can self-manage moving forward and is sustainable as my online business grows!