service-captcha/app/Http/Resources/Api/V1/Captcha.php

<?php declare(strict_types=1);

namespace App\Http\Resources\Api\V1;

use App\ServiceResults\Api\V1\CaptchaService\Captcha as CaptchaResult;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;

final class Captcha extends JsonResource
{

    /**
     * @var CaptchaResult
     */
    public $resource;

    /**
     * Transform the resource into an array.
     *
     * @param  Request $request
     * @return array
     */
    public function toArray(Request $request): array
    {
        return [
            'image_head' => [
                'base64' => $this->resource->getImageHead()->getImageBase64(),
                'width'  => $this->resource->getImageHead()->getWidth(),
                'height' => $this->resource->getImageHead()->getHeight(),
            ],
            'image_body' => [
                'base64' => $this->resource->getImageBody()->getImageBase64(),
                'width'  => $this->resource->getImageBody()->getWidth(),
                'height' => $this->resource->getImageBody()->getHeight(),
            ],
            'captcha_key' => $this->resource->getKey()
        ];
    }
}