A developer has created a custom Lightning web component for the Cart page that needs to react to changes to cart items from the standard cart component.
How should the developer implement the custom component so changes to cart items and quantities are reflected?

Question

A developer has created a custom Lightning web component for the Cart page that needs to react to changes to cart items from the standard cart component.

How should the developer implement the custom component so changes to cart items and quantities are reflected?

Richard lavery · Accepted Answer

Subscribe to events on the lightning_commerce_cartChanged channel using the Lightning Message Service.

Richard lavery · Answer

Add a listener for the cartltemUpdate Lightning event.

Richard lavery · Answer

Listen for events on the lightning_commerce_cartChanged channel with the Lightning Event ''Listener component.

Richard lavery · Answer

Add an event listener for the cartchanged DOM (Document Object Model) event.

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