Storefront migration

There are relatively few breaking changes that will affect the storefront.

• The setOrderShippingMethod mutation now takes an array of shipping method IDs rather than just a single one. This is so we can support multiple shipping methods per Order.

  -mutation setOrderShippingMethod($shippingMethodId: ID!) {
  +mutation setOrderShippingMethod($shippingMethodId: [ID!]!) {
    setOrderShippingMethod(shippingMethodId: $shippingMethodId) {
      # ... etc
    }
  } 
  

• The OrderLine.fulfillments field has been changed to OrderLine.fulfillmentLines. Your storefront may be using this when displaying the details of an Order.
• If you are using the graphql-code-generator package to generate types for your storefront, all monetary values such as Order.totalWithTax or ProductVariant.priceWithTax are now represented by the new Money scalar rather than by an Int. You’ll need to tell your codegen about this scalar and configure it to be interpreted as a number type:

  documents:
    - "app/**/*.{ts,tsx}"
    - "!app/generated/*"
  +config:
  +  scalars:
  +    Money: number
  generates:
    # ... etc