Laravel 7 event pusher broadcasting - laravel

Question

I want to push the counter in the chat section like below:
public function userChat(Request $request)
{
if (Auth::guard('admin')->check()) {
$user = Auth::guard('admin')->user()->name;
}
if (Auth::guard('web')->check()) {
$user = Auth::user()->name;
$userName = Auth::user()->name;
}
$user_id = $request->get('user_id');
$purpose = $request->get('purpose');
$owner = '';
if ($user == $user_id)
$owner = 'me';
$owner = 'you';
// dd($adminName);
if ($purpose == 'find-user') {
$msg = Chat::where('from', $user)->where('to', $user_id)
->orWhere('from', $user_id)->Where('to', $user)
->get();
// dd($msg);
return response()->json($msg);
} elseif ($purpose == 'admin-user') {
$val = $request->get('val');
$chat = Chat::create([
'message' => $val,
'from' => $user,
'to' => $user_id
]);
$data = 'xxx';
event(new chatNotify($data));
return response()->json(['user' => $user, 'msg' => $val]);
}
}
in my evet channel file:
public $name;
public function __construct($data)
{
$this->name = $data;
}
public function broadcastOn()
{
//return new Channel('chatNotify');
return ['chatNotify'];
}
in my javascript file in the app:
var notificationsWrapper = $('#user-chat');
var notificationsCountElem = notificationsWrapper.find('span[data-count]');
var notificationsCount = parseInt(notificationsCountElem.data('count'));
// Subscribe to the channel we specified in our Laravel Event
var channel = pusher.subscribe('chatNotify');
// Bind a function to a Event (the full Laravel class)
channel.bind('App\\Events\\chatNotify', function () {
notificationsCount += 1;
notificationsCountElem.attr('data-count', notificationsCount);
I have an error connection, no pushing was happen, can somebody help me, please
am using ajax in chat section connection