Sending Products using Stripe as Payments

Hey Everyone!
I was making a Portfolio for my site: https://mehdi.us. And I wanted to create a section where I could send my customers to buy some source Code work. I wanted to use stripe for the payment, but I wanted to know how I should store the Source Code Securely so that only the users who buy the Product have Access to the Source Code. Any Ideas on how I could Achieve this?