Reusable Livewire computed properties

For example, we can create an HasUser trait, this allows you to access the current authenticated user from any Livewire component that uses this trait.

 1<?php
 2 
 3namespace App\Traits;
 4 
 5use Livewire\Attributes\Computed;
 6use App\Models\User;
 7 
 8trait HasUser {
 9 
10    #[Computed]
11    public function user(): ?User
12    {
13        return auth()->user();
14    }
15 
16}

Let's take the following component and add our HasUser trait.

1namespace App\Livewire;
2 
3use Livewire\Component;
4use App\Traits\HasUser;
5 
6class Example extends Component
7{
8    use HasUser;
9}

Now we can access our user anywhere in our component class but also our Blade view:

 1namespace App\Livewire;
 2 
 3use Livewire\Component;
 4use App\Traits\HasUser;
 5 
 6class Example extends Component
 7{
 8    use HasUser;
 9 
10    public function mount()
11    {
12        dd($this->user);
13    }
14}

Try it yourself in this interactive Wirebox.