websocket simple example

demo-client-app/src/App.js

@@ -16,9 +16,24 @@ const connect = async (token) => {
     {"X-Authorization": token},
     (frame) => {
       console.log("Connected", frame);
+
+      const requestUrl = "/app/simple";
+      let params = {
+        tratata: 1,
+        gratata: 0
+      }
+      stomp.send(
+        requestUrl,
+        JSON.stringify(params)
+      );
+      stomp.subscribe("/user/simple", (results, errors)=>{
+        console.log("results: ", results);
+        console.log("errors: ", errors);
+      });
+
     },
     error => {
-      console.error("Disconnected");
+      console.error("Disconnected: ", error);
     }
   );
 }