The repository has been deprecated since 22nd September 2023. There is a new version of demo application available at https://github.com/optile/op-demo-shop.
This Demo shop is to represent the React implementation of Express Checkout https://github.com/optile/express-checkout We are using onProceed and onAbort customFunctions to rewrite the internal implementation, and to disable the hard redirect, and do it using javascript routing.
npm install --save express-checkout@latest --registry https://packagecloud.io/optile/javascript/npm/
npm install
npm start
Live Demo - https://optile.github.io/demo-express-checkout-react-spa
npm install
npm run onlybuild