Flash Messages

In cases where it's useful to "flash" a success or failure message to the user, Livewire supports Laravel's system for flashing data to the session.

Here's a common example of its usage:

class UpdatePost extends Component
{
    public Post $post;

    protected $rules = [
        'post.title' => 'required',
    ];

    public function update()
    {
        $this->validate();

        $this->post->save();

        session()->flash('message', 'Post successfully updated.');
    }
}

<form wire:submit.prevent="update">
    <div>
        @if (session()->has('message'))
            <div class="alert alert-success">
                {{ session('message') }}
            </div>
        @endif
    </div>

    Title: <input wire:model="title" type="text">

    <button>Save</button>
</form>

Now, after the user clicks "Save" and their post is updated, they will see "Post successfully updated" on the page.

If you wish to add flash data to a redirect and show the message on the destination page instead, Livewire is smart enough to persist the flash data for one more request. For example:

public function update()
{
    $this->validate();

    $this->post->save();

    session()->flash('message', 'Post successfully updated.');

    return redirect()->to('/posts');
}

Now when a user "Saves" a post, they will be redirected to the "/posts" endpoint and see the flash message there. This assumes the /posts page has the proper Blade snippet to display flash messages.