[Bug]: Property 'service_zone' does not exist on type 'StoreCartShippingOption'.

[drainpixie]

Package.json file

{
  "dependencies": {
    "@headlessui/react": "^2.2.9",
    "@medusajs/icons": "latest",
    "@medusajs/js-sdk": "latest",
    "@medusajs/ui": "latest",
    "@radix-ui/react-accordion": "^1.2.12",
    "@stripe/react-stripe-js": "^5.6.0",
    "@stripe/stripe-js": "^8.7.0",
    "colorette": "^2.0.20",
    "lodash": "^4.17.23",
    "next": "16.1.6",
    "pg": "^8.18.0",
    "qs": "^6.14.2",
    "react": "19.2.4",
    "react-country-flag": "^3.1.0",
    "react-dom": "19.2.4",
    "server-only": "^0.0.1",
    "swiper": "^12.1.1",
    "tailwindcss-radix": "^4.0.2",
    "webpack": "^5.105.2"
  },
  "devDependencies": {
    "@babel/core": "^7.29.0",
    "@eslint/js": "^10.0.1",
    "@medusajs/types": "latest",
    "@medusajs/ui-preset": "latest",
    "@next/eslint-plugin-next": "^16.1.6",
    "@tailwindcss/postcss": "^4.1.18",
    "@types/lodash": "^4.17.23",
    "@types/node": "25.2.3",
    "@types/pg": "^8.16.0",
    "@types/react": "19.2.14",
    "@types/react-dom": "19.2.3",
    "@types/react-instantsearch-dom": "^6.12.9",
    "autoprefixer": "^10.4.24",
    "babel-loader": "^10.0.0",
    "eslint": "10.0.0",
    "eslint-config-next": "16.1.6",
    "eslint-config-prettier": "^10.1.8",
    "eslint-plugin-import": "^2.32.0",
    "eslint-plugin-simple-import-sort": "^12.1.1",
    "eslint-plugin-unused-imports": "^4.4.1",
    "postcss": "^8.5.6",
    "prettier": "^3.8.1",
    "prettier-plugin-tailwindcss": "^0.7.2",
    "tailwindcss": "^4.1.18",
    "typescript": "^5.9.3",
    "typescript-eslint": "^8.55.0"
  }
}

Node.js version

v24.13.0

Operating system name and version

NixOS 26.05 (Yarara) x86_64 (Kernel 6.18.5)

Browser name

Helium Browser

What happended?

As the title suggests, I believe new Medusa versions have changed the API and now service_zone is no longer part of HttpTypes.StoreCartShippingOption (returned by listCartShippingMethods and used by the <Shipping .../> component and such `

Expected behavior

Property is correctly found where needed

Actual behavior

Property is not where needed; breaks components.

Link to reproduction repo

Issue is reproducible on main repo.

[drainpixie]

Repository doesn't seem to be very active, the entire code-base is littered with badly typed code sadly. Still, the solution for this specifically is just using the HttpTypes.StoreCartShippingOptionWithServiceZone[] type.