diff --git a/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/web/K8sManagementWebResource.java b/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/web/K8sManagementWebResource.java
index 5cef329..5d23fab 100644
--- a/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/web/K8sManagementWebResource.java
+++ b/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/web/K8sManagementWebResource.java
@@ -53,6 +53,13 @@
 public class K8sManagementWebResource extends AbstractWebResource {
     private final Logger log = LoggerFactory.getLogger(getClass());
 
+    private static final String PORT_ID = "portId";
+    private static final String DEVICE_ID = "deviceId";
+    private static final String PORT_NUMBER = "portNumber";
+    private static final String IP_ADDRESS = "ipAddress";
+    private static final String MAC_ADDRESS = "macAddress";
+    private static final String NETWORK_ID = "networkId";
+
     private static final long SLEEP_MIDDLE_MS = 3000; // we wait 3s
     private static final long TIMEOUT_MS = 10000; // we wait 10s