refactor

cmd/inventory/main.go

@@ -24,6 +24,11 @@ import (
 type Server struct {
 	inventoryService   *inventory.RedisInventoryService
 	reservationService *inventory.RedisCartReservationService
+
+	// rdb + conn back the batch write path (pipelined UpdateInventory + level
+	// crossing). conn is nil when RABBIT_HOST is unset; emit is then skipped.
+	rdb  *redis.Client
+	conn *rabbit.Conn
 }
 
 func (srv *Server) livezHandler(w http.ResponseWriter, r *http.Request) {
@@ -124,13 +129,16 @@ func main() {
 		return
 	}
 
-	server := &Server{inventoryService: s, reservationService: r}
+	server := &Server{inventoryService: s, reservationService: r, rdb: rdb}
 
 	// Set up HTTP routes
 	http.HandleFunc("/livez", server.livezHandler)
 	http.HandleFunc("/readyz", server.readyzHandler)
 	http.HandleFunc("/inventory/{sku}/{locationId}", server.getInventoryHandler)
 	http.HandleFunc("/reservations/{sku}/{locationId}", server.getReservationHandler)
+	http.HandleFunc("POST /reservations", server.reserveInventoryHandler)
+	http.HandleFunc("POST /reservations/release", server.releaseReservationHandler)
+	http.HandleFunc("POST /inventory/batch", server.batchInventoryHandler)
 
 	stockhandler := &StockHandler{
 		MainStockLocationID: inventory.LocationID(country),
@@ -151,6 +159,9 @@ func main() {
 		// The catalog-feed handler emits inventory.level_changed crossings
 		// directly on this connection as it writes stock.
 		stockhandler.conn = conn
+		// Share the bus connection with the batch handler so its writes emit
+		// inventory.level_changed crossings too.
+		server.conn = conn
 		// Reconnecting consumer: re-listen on reconnect.
 		conn.NotifyOnReconnect(func() {
 			ch, err := conn.Channel()