While working at Commerce.js as the first front-end developer, I designed an example D2C headless e-commerce site and also developed a working version with both React.js and Vue.js. I then published a tutorial for the Vue.js version. 

Blog article: https://commercejs.com/blog/create-an-ecommerce-store-with-vuejs.

Repo with Vue.js & React.js versions: https://github.com/chec/commercejs-reactjs-vuejs-demo-store