使用谷歌云存储api与开发者密钥(不是OAuth2)

我想从一些控制台命令上传文件到谷歌云。正如我所理解的，不能用OAuth2做到这一点，所以我需要使用Api密钥。但什么都没用。我试过这个

$ch = curl_init();
$url = 'https://www.googleapis.com/upload/storage/v1/b/temp/o?uploadType=media&name=p11&key='.$this->key;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'Authorization: key '.$this->key
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, '@/var/www/test.txt');
$content = curl_exec($ch);
var_dump($content);

有一个错误:

{ "error": { "errors": [ { "domain": "global", "reason": "authError", "message": "Invalid Credentials", 
  "locationType": "header", "location": "Authorization" } ],
  "code": 401, "message": "Invalid Credentials" } }

And i try php-sdk

$client = new Google_Client();
$client->setApplicationName("alasdg");
$client->setDeveloperKey($this->key);
$client->setScopes(['https://www.googleapis.com/auth/devstorage.read_write']);
$client->getAuth();
$storageService = new Google_Service_Storage($client);
$buckets = $storageService->buckets->listBuckets('temp');
var_dump($buckets);exit;

错误是:

Error calling GET https://www.googleapis.com/storage/v1/b?project=temp&key=afJwBJWucqvIU: (400) Invalid argument.

我可以上传文件没有OAuth2吗?