External Service Class in Livewire

In this lesson, let's see how you can call an external class from the Livewire component, like a Service class.

For example, you create a post, then send an email, updating other tables in the DB. So imagine this code has way more lines of code:

use App\Models\Post;
 
class PostForm extends Form
{
    // ...
 
    public function save(): void
    {
        Post::create($this->all());
 
        $this->reset('title', 'body');
    }
}

So we create some PostService where all the potential code for the post would go there.

app/Services/PostService.php:

class PostService
{
    public function storePost(string $title, string $body): void
    {
        Post::create([
            'title' => $title,
            'body'  => $body,
        ]);
    }
}

Then you can use that service in a typical Laravel Controller. You can read about it in posts like Laravel Controller into Service Class with Injection or Service Classes in Laravel: All You Need to Know or check more here.

In Livewire we can call service the same way by creating a new PostService.

use App\Services\PostService;
 
class PostForm extends Form
{
    // ...
 
    public function save(): void
    {
        Post::create($this->all()); 
        (new PostService())->storePost($this->title, $this->body); 
 
        $this->reset('title', 'body');
    }
}

Or by adding a service as a parameter in the method.

use App\Services\PostService;
 
class PostForm extends Form
{
    // ...
 
    public function save(): void 
    public function save(PostService $postService): void 
    {
        (new PostService())->storePost($this->title, $this->body); 
        $postService->storePost($this->title, $this->body); 
 
        $this->reset('title', 'body');
    }
}