PHP code example of in2code / imager

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

in2code / imager example snippets

declare(strict_types=1);

namespace Vendor\MyExtension\Domain\Repository\Llm;

use In2code\Imager\Domain\Repository\Llm\AbstractRepository;
use In2code\Imager\Domain\Repository\Llm\RepositoryInterface;
use In2code\Imager\Exception\ApiException;
use In2code\Imager\Exception\ConfigurationException;
use TYPO3\CMS\Core\Http\RequestFactory;
use TYPO3\CMS\Core\Resource\File;
use TYPO3\CMS\Core\Resource\ResourceFactory;
use TYPO3\CMS\Core\Resource\StorageRepository;

class DallERepository extends AbstractRepository implements RepositoryInterface
{
    private string $apiKey = '';
    private string $apiUrl = 'https://api.openai.com/v1/images/generations';

    public function __construct(
        protected StorageRepository $storageRepository,
        protected ResourceFactory $resourceFactory,
        protected RequestFactory $requestFactory,
    ) {
        parent::__construct($storageRepository, $resourceFactory, $requestFactory);
        $this->apiKey = getenv('OPENAI_API_KEY') ?: '';
    }

    public function checkApiKey(): void
    {
        if ($this->apiKey === '') {
            throw new ConfigurationException('OpenAI API key not configured', 1735646100);
        }
    }

    public function getApiUrl(): string
    {
        return $this->apiUrl;
    }

    public function getImage(string $prompt): File
    {
        $this->checkApiKey();
        $imageData = $this->generateImageWithDallE($prompt);
        return $this->saveImageToStorage($imageData, $prompt);
    }

    protected function generateImageWithDallE(string $prompt): string
    {
        $payload = [
            'model' => 'dall-e-3',
            'prompt' => $prompt,
            'n' => 1,
            'size' => '1024x1024',
            'response_format' => 'b64_json',
        ];

        $options = [
            'headers' => [
                'Authorization' => 'Bearer ' . $this->apiKey,
                'Content-Type' => 'application/json',
            ],
            'body' => json_encode($payload),
        ];

        $response = $this->requestFactory->request($this->getApiUrl(), $this->requestMethod, $options);

        if ($response->getStatusCode() !== 200) {
            throw new ApiException(
                'Failed to generate image with DALL-E: ' . $response->getBody()->getContents(),
                1735646101
            );
        }

        $responseData = json_decode($response->getBody()->getContents(), true);

        if (isset($responseData['data'][0]['b64_json']) === false) {
            throw new ApiException('Invalid DALL-E API response structure', 1735646102);
        }

        $this->mimeType = 'image/png';
        return base64_decode($responseData['data'][0]['b64_json']);
    }
}

defined('TYPO3') || die();

// Register custom LLM repository
$GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['imager']['llmRepositoryClass']
    = \Vendor\MyExtension\Domain\Repository\Llm\DallERepository::class;