weixin/app/Repositories/Transformers/Base/ResourceTransformer.php

<?php

namespace App\Repositories\Transformers\Base;

use App\Repositories\Models\Base\Resource;
use League\Fractal\TransformerAbstract;

class ResourceTransformer extends TransformerAbstract
{
    /**
     * Prepare data to present.
     *
     * @param Resource $resource
     * @return array
     */
    public function transform(Resource $resource)
    {
        return [
            'id' => $resource->id,
            'created_at' => $resource->created_at ? $resource->created_at->format('Y-m-d H:i:s') : null,
        ];
    }
}