<script>
    export default {
        data () {
          return {
            invokeIdCnt: 0
          }
        },
        methods: {
          onConnected(frame){
            console.log('Connected: ' + frame);
            ...
            this.$stompClient.subscribe('/topic/username', this.responseCallback, this.onFailed);
          },
          onFailed(frame){
            console.log('Failed: ' + frame);
            ...
          },         
          connectSrv(){
            var headers = {
              "login": 'guest',
              "passcode": 'guest',
              // additional header
              ...
            };
            this.connetWM(headers, this.onConnected, this.onFailed);    
          },
          getInvokeId(){
            let hex = (this.invokeIdCnt++ ).toString(16);
            var zero = '0000';
            var tmp  = 4-hex.length;
            return zero.substr(0,tmp) + hex;
          },
          send(){
              let destination = '/exchange/test'
              let invokeId = this.getInvokeId();
              ...
              let body = msgHead + invokeId + msgBody;
              this.sendWM(destination, body, invokeId, this.responseCallback, 3000);
          },
          responseCallback(frame){
            console.log("responseCallback msg=>" + frame.body);
            let invokeId = frame.body.substr(invokeIdIndex, 4);
            this.removeStompMonitor(invokeId);
          },
          disconnect(){
            this.disconnetWM();
          }
        },
        stompClient:{
          monitorIntervalTime: 100,
          stompReconnect: true,
          timeout(orgCmd) {              
            ...
          }
       }
    };

</script>