Laravel jGrowl

index.blade.php

//No Controller
 return redirect()->back()->with([
                    'message' => "Favor preencha todos os CAMPOS!"
                ]);
                
//No template
@if(Session::has('message'))
<script>
    $(function () {
        $.jGrowl("{{ Session::get('message') }}", {
            position: 'bottom-center',
            header: 'Wooopsss ⚠️',
            theme: 'bg-warning',
        });    
    });
</script>
@endif

// no HTML

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jquery-jgrowl/1.4.7/jquery.jgrowl.css" integrity="sha512-bJUzQNnX8ns5wfU5evv67e9ILktl3dr6xQlwWUhB743gV5dZgOOvhnTg7l8LH/8noxBLctysfkz2e9nH5QDg+g==" crossorigin="anonymous" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-jgrowl/1.4.7/jquery.jgrowl.min.js" integrity="sha512-h77yzL/LvCeAE601Z5RzkoG7dJdiv4KsNkZ9Urf1gokYxOqtt2RVKb8sNQEKqllZbced82QB7+qiDAmRwxVWLQ==" crossorigin="anonymous"></script>