var url = "ws://localhost:61614/stomp";
var client = Stomp.client(url);

function afterConnect(roomid) {
  btn.addEventListener('click', function () {
    var msg = input.value;
    client.send(roomid, {}, msg);
  }, false);
}

function createConnect(roomid, uid) {
  client.connect(headers, function (error) {
    if (error.command == "ERROR") {
      console.error(error.headers.message);
    } else {
      afterConnect(roomid);
      client.subscribe(uid, function (msg) {
        var body = msg.body;
        if (msg.headers['content-type'] == 'application/json') {
          body = JSON.parse(msg.body)
        }
      });
    }
  });
}
......
......