addLineItems not working with v3?

[larsmosr]

TypeError: lineItems.map is not a function
If I bump up the package to 3.0.0-rc.0 or 3.0.0-rc.1 I can't use the addLineItems function. Its still working on the older version but I need to upgrade due to the shopify changes.

It says in the "Updated .checkout methods" that there aren't any compatibility issues with the lineItems methods (addLineItem, replaceLineItems, updateLineItems, removeLineItems)

To Reproduce
Upgrade the version to 3.0.0-rc.1

// Add it to the Shopify checkout cart
const newCheckout = await shopifyClient?.checkout.addLineItems( checkout.id, newItem )

Environment (please complete the following information):

• OS: MacOS
• Browser chrome
• SDK Version 3.0.0-rc.1

[kdaviduik]

Hi @larsmosr! Thanks for testing out the v3 RC and reporting this! That is not a known/intentional limitation and seems like a bug so we'll look into this.

[kdaviduik]

Hi @larsmosr!

In the storefront API for this mutation it says it only accepts an array of line items as input so that's how we built v3, but upon digging into this further we discovered that the mutation works with a single object as well, and v2 of the JS Buy SDK supported that.

We're going to update v3 accordingly to also support that behaviour and will have an updated RC out soon.

[juanpprieto]

This will be fixed in the next RC! Thanks for the heads up

[kdaviduik]

@larsmosr the next RC is out which includes a fix for this issue, please let us know if you are still having issues! https://www.npmjs.com/package/shopify-buy/v/3.0.0-rc.2