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Migrating eCommerce integrations to 2.3.0


This migration guide helps Integrators make their integrations and plugins compatible with version 2.3.0.

It only contains code examples. For more information about this version, refer to the Overview page.


  • Added E2E (cypress) tests to boilerplate theme.

  • [BREAKING] Changed the signature of extendApp in Server Middleware extensions introduced in the previous release from extendApp(app) to extendApp({ app, configuration })

export const customExtension = {
  name: 'customExtension',

  extendApp: ({ app, configuration }: { app: Express, configuration: any }) => {

    app.get('/customEndpoint', customMiddleware(), (request, response) => {