Build mobile apps for my business

I need a crossplatform mobile apps for my ecommerce website,I did built my webapps using node.js so come up with a native version or crossplatform apps as your choice. My website have already a nice view for mobile version even my developers still working for a suitable API to implement with current version. I need this app for android and ios only,I will provide google play store and apple id link to integrate the [login to view URL] just have to do the design and coding at this stage. So,if you think you can do it then show me some previous example that you did and come up with your best proposal.