This is a generic version of the backend API server I wrote for erichastourettes.com in Golang. It manages tasks such as user cart and session handling through an SQLite DB, as well as interfacing with the APIs of Stripe (payment processor) and Printify (print-on-demand service) for checkout and order creation functionality. It has been over a year since I launched the site and I wanted to share the work I put into creating a functional ecommerce platform on the backend. I may put some effort into improving this code in the future.
I went through and cleaned up erichastourettes.com specific references. If you plan to use any of the code, be sure to closely look at how you may need to modify it to fit your own needs.
The API exposes the following endpoints to the client:
/api/items
/api/retrieve_cart
/api/add_to_cart
/api/remove_from_cart
/api/checkout
It requires the following environment variables to be configured within your .env:
PRINTIFY_API_TOKEN Your Printify API token
SHOP_ID Your printify shop ID number
STRIPE_SECRET Your Stripe account secret token
STRIPE_WEBHOOK_SECRET Your Stripe webhook secret token
LOGFILE Log file name
CSRF_AUTH_TOKEN Random CSRF authorization token