support mapping

cmd/cart/pool-server.go

@@ -76,6 +76,9 @@ func (s *PoolServer) GetCartHandler(w http.ResponseWriter, r *http.Request, id c
 func (s *PoolServer) AddSkuToCartHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
 	sku := r.PathValue("sku")
 	country := getCountryFromHost(r.Host)
+	if s.idx == nil {
+		log.Printf("No index present")
+	}
 	if s.idx != nil && s.idx.IsDeleted(sku) {
 		// Bus-deleted SKU — skip the HTTP fetch and reject the add. Mirrors the
 		// product-fetcher's "product service returned %d for sku %s" shape so
@@ -100,6 +103,9 @@ func (s *PoolServer) AddSkuToCartHandler(w http.ResponseWriter, r *http.Request,
 		}
 	}
 	if msg == nil {
+		if s.idx == nil {
+			log.Printf("No item found in index %s", sku)
+		}
 		var err error
 		msg, err = GetItemAddMessage(r.Context(), sku, 1, country, nil)
 		if err != nil {