Show a shipping rate based on zip, province and country in shopify

Question

I would like to show a shipping rate if zip code matches a number of zip codes, and county is GB and hide that shipping rate otherwise. Shopify has a sample but

• it accepts singe zip code
• it need province, this is not applicable in uk
• it hides rates that are not given in list. I would like to display them. sample is available here.

https://help.shopify.com/en/manual/checkout-settings/script-editor/examples/shipping-scripts#show-rates-for-a-specific-zip-code-province-and-country

Any help will be highly appreciated.

Answer 1

If you are not on Plus, your best bet is to register a CarrierService. Shopify will send all checkouts to that service. In your service, you audit the payload. Depending on the contents, like country, zip etc, you can either return a rate or not. This solves your problem.