What is the location of your example repository?

No response

Which package or tool is having this issue?

Hydrogen

What version of that package or tool are you using?

2025.5.0

What version of Remix are you using?

react router 7.6.0

Steps to Reproduce

Query the product metafield like this:

const QUERY = `#graphql
    bundle: product(handle: "my-bundle") {
      originalPrice: metafield( namespace: "custom", key: "my_audiobook_bundle_original_price") {
        value
        type
      }
      selectedOrFirstAvailableVariant {
        price {
          amount
          currencyCode
        }
      }
    }
  }
` as const;

const {bundle} = await storefront.query(QUERY)

This returns everything as expected:

{
  "bundle": {
    "originalPrice": {
      "value": "{\"amount\":\"30.0\",\"currency_code\":\"USD\"}",
      "type": "money"
    },
    "selectedOrFirstAvailableVariant": {
      "price": {
        "amount": "20.0",
        "currencyCode": "USD"
      }
    }
  }
}

Now try parsing the metafield with parseMetafield from '@shopify/hydrogen':

const parsedOriginalPrice = parseMetafield<ParsedMetafields['money']>({
      ...bundle.originalPrice,
    }).parsedValue;

parsedOriginalPrice is inferred as MoneyV2, but it actually looks like this:

{
  "amount": "20.0",
  "currency_code": "USD"
}

Expected Behavior

currency_code is parsed to currencyCode on the object if it gets inferred as MoneyV2.

Actual Behavior

bundle.price is correctly inferred as MoneyV2, and it has the currencyCode property.
parsedOriginalPrice is incorrectly inferred as MoneyV2, since currency_code is not parsed to currencyCode by parseMetafield.