preparing proto parsing for future use

package-lock.json

@@ -7548,6 +7548,11 @@
         "slash": "^3.0.0"
       }
     },
+    "google-protobuf": {
+      "version": "3.21.0",
+      "resolved": "https://registry.npmjs.org/google-protobuf/-/google-protobuf-3.21.0.tgz",
+      "integrity": "sha512-byR7MBTK4tZ5PZEb+u5ZTzpt4SfrTxv5682MjPlHN16XeqgZE2/8HOIWeiXe8JKnT9OVbtBGhbq8mtvkK8cd5g=="
+    },
     "graceful-fs": {
       "version": "4.2.6",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.6.tgz",

package.json

@@ -17,6 +17,7 @@
     "@material-ui/lab": "4.0.0-alpha.57",
     "bootstrap": "4.5",
     "flexlayout-react": "0.5.5",
+    "google-protobuf": "3.21.0",
     "jquery": "3.6.0",
     "jszip": "3.2.0",
     "mqtt": "4.3.5",

src/services/mqtt-client-service.js

 import mqtt from 'mqtt';
 import { EventEmitter } from 'events';
 
+//import DataPackMessage from 'nrp-jsproto/engine_grpc_pb';
+
 let _instance = null;
 const SINGLETON_ENFORCER = Symbol();
 
@@ -13,6 +15,8 @@ export default class MqttClientService extends EventEmitter {
     if (enforcer !== SINGLETON_ENFORCER) {
       throw new Error('Use ' + this.constructor.name + '.instance');
     }
+
+    //console.info(['DataPackMessage', DataPackMessage]);
   }
 
   static get instance() {
@@ -49,7 +53,7 @@ export default class MqttClientService extends EventEmitter {
         console.info('"' + topic + '" message format = ' + msg);
       }
       else {
-        let msg = proto.Engine.DataPackMessage.decode(payload);
+        let msg = DataPackMessage.deserializeBinary(payload);
         console.info('DataPackMessage');
         console.info(msg);
       }