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Fetching carrier-calculated rates through @defer directive in Storefront GraphQL API
API
Effective July 01, 2024
As of 2024-07, Cart#deliveryGroups supports a new withCarrierRates argument, used to indicate intent to fetch carrier-calculated rates. This capability requires mandatory use of @defer directive, which ensures that the cart response is not blocked on calculating rates.
Test out the carrier-calculated rates on the cart today by following our tutorial. We value your input, please share your feedback on Github.