OptionalmethodArgs: {Checks if one or more ShippingMethods exist for the provided query predicate. Returns a 200 OK status if any ShippingMethods match the query predicate or a Not Found error otherwise.
OptionalmethodArgs: {Get matching ShippingMethods for a Cart
Get matching ShippingMethods for a Cart and Location
Get matching ShippingMethods for a Location
Get matching ShippingMethods for an OrderEdit
Creates a ShippingMethod in the Project.
Retrieves all ShippingMethods in the Project.