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Add typescript support for storefront javascript

Add typescript support for storefront javascript


This document represents an architecture decision record (ADR) and has been mirrored from the ADR section in our Shopware 6 repository. You can find the original version here


  • We want to add TypeScript support to the Storefront, to make use of all of it's features increasing the overall developer experience, quality and maintainability.
  • The main concern is the compatibility to existing Storefront plugins, which have been built in previous versions without TypeScript support.
  • TypeScript files need to be compatible with JavaScript files and vice versa, for both the Storefront internally, and also for plugins.


  • To prevent any breaks in our current Storefront stack, we will add TypeScript language support to the current babel chain, using the preset @babel/preset-typescript.
  • To prevent any breaks for existing Storefront plugins, we won't replace any publicly used .js files with .ts files, without proper deprecation.


  • TypeScript (.ts and .tsx) files are now supported by the Storefront.
  • Storefront plugins can now be developed using TypeScript and the actual Storefront JavaScript can be incrementally converted to .ts files from now on.
  • TypeScript files and JavaScript files are compatible and can be imported to each other.