Build a website for selling vouchers and codes

I want to develop an eCommerce website with a primary function of selling products like vouchers, activation codes for my mobile app and paid membership subscription to my mobile apps service. I will be responsible for uploading the vouchers into the database. Also, an independent mobile app/client will be able to connect, sign in and get the status of the user's subscription. When the website is developed, my bank will handle the integration of the payment gateway.