bike-api/app/Transformers/UploadTransformer.php

<?php
/**
 * Created by PhpStorm.
 * User: Mead
 * Date: 2019/8/5
 * Time: 2:44 PM
 */

namespace App\Transformers;

use App\Models\Upload;
use League\Fractal\TransformerAbstract;

class UploadTransformer extends TransformerAbstract
{

    public function transform(Upload $model)
    {
        return [
            'id' => $model->id,
            'url' => $model->path
        ];
    }

}