Загрузка файла может быть выполнена с помощью \ TYPO3 \ CMS \ Core \ Http \ RequestFactory in TYPO3
$filePath = '/var/www/html/MyTypo3Project/Image.png';
$username = 'test';
$password = 'test';
$multipart = [
// File Parameter
[
'name' => 'Image', //Api side parameter name
'contents' => fopen(realpath($filePath), 'r'),
'filename' => 'MyCustomName.png' // Custom filename
],
//Other Parameters
[
'name' => 'custom_param',
'contents' => 'custom_param_value'
]
];
// Request options along with auth header
$additionalOptions = [
'auth' => [$username, $password],
'multipart' => $multipart,
];
$requestFactory = GeneralUtility::makeInstance(\TYPO3\CMS\Core\Http\RequestFactory::class);
$response = $requestFactory->request(
$url, // Api Endpoint Url
'POST',
$additionalOptions // Passing the additional options
);