add delete all route

src/main/java/com/ascendfinalproject/warehouse/controllers/WarehouseController.java

@@ -44,4 +44,11 @@ public class WarehouseController {
     return orderService.deleteOrder(id);
   }
 
+  @CrossOrigin
+  @DeleteMapping(value = "/orders/all")
+  public Mono<Void> deleteAllOrders() {
+    System.out.println("Deleted all orders");
+    return orderService.deleteAllOrders();
+  }
+
 }

src/main/java/com/ascendfinalproject/warehouse/services/WarehouseOrderService.java

@@ -47,5 +47,9 @@ public class WarehouseOrderService {
     return orderRepository.deleteById(id);
   }
 
+  public Mono<Void> deleteAllOrders() {
+    return orderRepository.deleteAll();
+  }
+
 
 }