Storefront APIStorefront API ReferenceOrders & CartsCart shipping method selectionCart shipping method selectionVersion: X-Cart 5.6.0Cart shipping method selection POST /api/storefront/carts/:cart_id/shipments/:id/select_shipping_method Creates a Cart shipping method selection resource. Request Responses201400401422500Cart shipping method selection resource createdInvalid inputUnauthorizedUnprocessable entityInternal error