more platform

order/order.go

@@ -16,14 +16,18 @@ package order
 import "encoding/json"
 
 // Line is one ordered line item, reduced to what reactors need: the SKU, how
-// many units sold, and the inventory location to commit against. Pricing/tax
-// live in the order grain, not on this seam.
+// many units sold, the inventory location to commit against, and whether the
+// item is drop-ship (fulfilled by the supplier, never decremented from local
+// stock). Pricing/tax live in the order grain, not on this seam.
 type Line struct {
 	SKU      string `json:"sku"`
 	Quantity int    `json:"quantity"`
 	// Location is the inventory location / store id to decrement. Empty means
 	// "use the order's Country" (central stock) — see Created.Country.
 	Location string `json:"location,omitempty"`
+	// DropShip marks items fulfilled directly by the supplier. The inventory
+	// reactor must skip the stock decrement for these lines.
+	DropShip bool `json:"drop_ship,omitempty"`
 }
 
 // Created is the payload of an event.OrderCreated envelope.