Getting dynamic properties from Line Items and Network Access for validations

Ask Me Anything Q&A Scripts Deprecation AMA
1

Question 1: Dynamic Cart Line Attributes

Our use case involves applying discounts based on dynamically named cart line properties, like _offer_version_#{offerId}.

The issue is that the attribute field in the Checkout Functions API requires a hardcoded key, making it impossible for us to access these properties with a variable name. We need to be able to access properties like attribute(key: "offer_version_123") where the 123 is a dynamic value.

Is there a recommended method or a new API feature that allows us to dynamically access cart line properties within a Shopify Function?

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Question 2: Network Access for Shopify Plus

We’re interested in using the Network Access feature (fetch target) for Discount Functions to perform server-to-server transaction validation.

However, it appears this functionality is currently limited to Enterprise clients. Are there any plans to make the fetch target available for Shopify Plus plans?

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Depending on how you setup the offers there are a couple of approaches you could take here. We do offer dynamic attributes on a per Function configuration leveraging input query variables.

Essentially how it would work is you’d set a JSON metafield with the value of the offer

{  “offerId”: 123}

Then within your shopify.extension.toml you’ll add a section like this to the location you store that JSON metafield

[extensions.input.variables]
namespace = "$app"
key = "variables"

Within your input query you’d then pass in that variable of $offerId as part of the query.

Another approach is to split up the attribute into an offer_idkey and an offer_value key and fetch both of those as part of your input leveraging aliases.

On the network access question, currently we don’t plan on increasing availability of network access.

3

Thank you, will check this.