update subscription

@@ -15,7 +15,9 @@ export default withRouter(({ location }) => {
   const { pathname } = location;
   const roomName = pathname.slice(1, pathname.length);
   const [createMsg] = useMutation(CREATE_MESSAGE);
-  const { data: subScription } = useSubscription(SUBSCRIPTION_MSG);
+  const { data: subMessage } = useSubscription(SUBSCRIPTION_MSG);
+
+  console.log("subMessage : ", subMessage);
 
   const message = useInput("");
 
@@ -46,18 +48,16 @@ export default withRouter(({ location }) => {
 
   let testObj;
   testObj = subscribeToMore({
-    document: SUBSCRIPTION_MSG,
+    document: subMessage,
     updateQuery: (prev, { subscriptionData }) => {
       console.log("prev : ", prev);
       console.log("subscriptionData : ", subscriptionData);
-      if (!subscriptionData.data) return prev;
-      const newFeedItem = subscriptionData.data.subMessage;
-      console.log("newFeedItem : ", newFeedItem);
-      return Object.assign({}, prev, {
-        seeAllMessage: {
-          id,
-        },
-      });
+      return {
+        seeAllMessage: [
+          ...prev.seeAllMessage,
+          subscriptionData.data.subMessage,
+        ],
+      };
     },
   });
   console.log(testObj);