Laravel - Broadcasting - Example Application Authorizing Channels

Remember, users must be authorized to listen on private channels. We may define our channel authorization rules in our application's routes/channels.php file. In this example, we need to verify that any user attempting to listen on the private order.1 channel is actually the creator of the order:

    use App\Models\Order;
    Broadcast::channel('orders.{orderId}', function ($user, $orderId) {
        return $user->id === Order::findOrNew($orderId)->user_id;

The channel method accepts two arguments: the name of the channel and a callback which returns true or false indicating whether the user is authorized to listen on the channel.

All authorization callbacks receive the currently authenticated user as their first argument and any additional wildcard parameters as their subsequent arguments. In this example, we are using the {orderId} placeholder to indicate that the "ID" portion of the channel name is a wildcard.