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#AddressRulesProvider

#Import

typescript 
1import { AddressRulesProvider } from "@alepha/commerce/checkout";

#Overview

Per-country address rules for the EU.

#Why this is a provider and not a constant

The day the shop sells to Switzerland or the UK, the list needs one more entry - and editing a framework package to add a country you sell to is absurd. Substituting the provider is the supported answer:

ts 
1class MyRules extends AddressRulesProvider {2  override rules() {3    return {4      ...super.rules(),5      CH: { name: "Suisse", postalCode: /^\d{4}$/, example: "8001" },6    };7  }8}9alepha.with({ provide: AddressRulesProvider, use: MyRules });

The patterns are deliberately shape-only. Validating that a postcode exists requires a carrier's address database, which is a paid API and a different concern; what this catches is the typo and the wrong-country paste, which is most of what goes wrong.