a.php

<?php 
public static function upload($httpRequest, $filedata,$filesize, $filename){

			$authToken = Helper::getAuthToken($httpRequest);
			$userId = Helper::getUserId($httpRequest);

// 			if (!is_null($authToken)&&!is_null($userId)){
				$method = '?externUserId=' . $userId . '&authToken=' . $authToken .'&type=ATTACHMENT&filename='.$filename;
// 			} else {
// 				$method = '/'.$service.'?externUserId='.$request->getDeviceId();
// 			}

			if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
				$navLang = strtolower(substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2));
				$navLang = Helper::getAppLanguage($httpRequest);
			}

			$request_url =  config('mediktor.IMAGE_UPLOAD_URL').$method;
			$fileContents = fopen($filedata,'rb');
			$session = curl_init($request_url);

      $apiUser = Helper::getSpecificConfig($httpRequest, 'mediktor.API_USER');
      $apiPassword = Helper::getSpecificConfig($httpRequest, 'mediktor.API_PASSWORD');

				if(!config('mediktor.API_SSL_CHECKS')){
					curl_setopt($session, CURLOPT_SSL_VERIFYHOST, false);
					curl_setopt($session, CURLOPT_SSL_VERIFYPEER, false);
				}
				curl_setopt ($session, CURLOPT_PUT, true);
				curl_setopt ($session, CURLOPT_RETURNTRANSFER, true);
				curl_setopt ($session, CURLOPT_HEADER, true);
				curl_setopt ($session, CURLOPT_INFILESIZE, $filesize);
				curl_setopt ($session, CURLOPT_INFILE, $fileContents);
				$header = array('Connection: keep-alive','Content-Type: application/octet-stream','Authorization: Basic '.base64_encode($apiUser.':'.$apiPassword));
				curl_setopt($session, CURLOPT_HTTPHEADER, $header);
				curl_setopt($session, CURLOPT_FAILONERROR, true);

				$response = curl_exec($session);

				Helper::makeLog('RESPONSE ('.$method.') : '.$response);

				$http_status = curl_getinfo($session, CURLINFO_HTTP_CODE);

				$curl_errno= curl_errno($session);

				if($curl_errno){
					$errorCode = 'CURL'.$curl_errno;
					$errorDesc = curl_error($session);
					throw MediktorException::fromCodeAndDescription($errorCode,$errorDesc);
//					trigger_error('CURL Error ('.$curl_errno.'):' . curl_error($session),E_USER_ERROR);
				}

				curl_close($session);


			if(!$response || $http_status != 200){
				//Log error al conectar
// 				Log::warning('Error de connexió a '. get_called_class()."->".__FUNCTION__.' DeviceId: '. $request->getDeviceId());
				throw MediktorException::fromCodeAndDescription('MW01',\App\Libraries\Helper::getText('generics.error_generic'));
				$errorDescription = 'Algo ha pasado. Hable con el departamento de sistemas.';

				$response = Helper::getResponseErrorTemplateWithAllVariables($httpRequest, $errorDescription);

				return $response;


			} else {
				return $http_status;
			}

	}