shipping-portal/app/Transformers/TransactionDetailTransformer.php

<?php

namespace App\Transformers;

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

class TransactionDetailTransformer extends TransformerAbstract
{
    /**
     * List of resources to automatically include
     *
     * @var array
     */
    protected $defaultIncludes = [
        //
    ];

    /**
     * List of resources possible to include
     *
     * @var array
     */
    protected $availableIncludes = [
        //
    ];

    /**
     * A Fractal transformer.
     *
     * @param TransactionDetail $detail
     * @return array
     */
    public function transform(TransactionDetail $detail): array
    {
        return [
            'reference' => $detail->reference,
            'quantity' => $detail->quantity,
            'price' => (double)$detail->price,
            'name' => $detail->name,
            'amount' => (double)$detail->amount
        ];
    }
}