Example Gatsby, BigCommerce and Netlify CMS project meant to jump start Jamstack ecommerce sites.
Through the use of Netlify Functions, supports a built-in cart and checkout flow (with 50+ payment gateways / methods, advanced tax and shipping providers, etc) that uses the BigCommerce APIs to provide a complete end-to-end shopper experience, without the need for a complex backend or middleware.
Note: Requires a BigCommerce store, which you can get a free trial of via bigcommerce.com, which includes API access, if you don't already have an account. There is also an optional partner program which includes a sandbox account to play around in.
A fully-fledged and customizable Jamstack eCommerce storefront built using Next.js as a frontend, Chec and Commerce.js as the eCommerce backend with production-ready deployment to Netlify.
Being an API-first eCommerce platform, Chec/Commerce.js helps businesses to freely decouple and tool their websites. This template comes built with marketing pages, a product listing page, single product display pages, cart and checkout functionalities, and an order confirmation page.
Note: You will need to sign up for a Chec account at commercejs.com which includes the API access. Please follow the guide in the github repo to configure your inital setup.