laravel-beginning/form-app-with-data/app/Http/Controllers/Api/ContactMessageController.php

<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Http\Resources\ContactMessageResource;
use App\Models\ContactMessage;
use Illuminate\Http\Request;

class ContactMessageController extends Controller
{
    public function index()
    {
        $messages = ContactMessage::with(['category', 'status', 'notes'])->get();
        
        return ContactMessageResource::collection($messages);
    }

    public function show(ContactMessage $contactMessage)
    {
        $contactMessage->load(['category', 'status', 'notes']);
        
        return new ContactMessageResource($contactMessage);
    }
}