Google Cloud Storage - Upload an 'Object' without using Google Client - php

Question

I've been looking around for the past few days for an answer to this question, but I haven't been able to find the solution I'm after.
I have a fully working version of doing this task using Google_Client, however I want to be able to do this without using the Google_Client. I can create buckets without using it, but not Objects. I cannot understand the Google Documentation on this at all (it's pretty poor).
So, I have a function below which takes in several parameters to try and upload a file. I'm not sure what needs to go in $authheaders, $post_fields (the body of the post) or the url.
public function upload_file($bucket, $fileName, $file, $fileType) {
// Check if we have auth token
if(empty($this->authtoken)) {
echo "Please login to Google";
exit;
}
// Prepare authorization headers
$authheaders = array(
"Authorization: Bearer " . $this->authtoken
);
$postbody = array();
//Http call for creating a file
$response = $this->http_call(self::FILE_UPLOAD_URL.$bucket.'/o?uploadType=multipart&name='.$fileName, $postbody, $authheaders);
// Has the file been created successfully?
if($response->success=="1") {
return array('status' => 'success', 'errorcode' =>'', 'errormessage'=>"", 'id' => $response->job->id);
}
else {
return $response;
}
}
The http_call function:
public function http_call($url, $post_fields, $authheaders) {
// Make http call
$this->httpRequest->setUrl($url);
$this->httpRequest->setPostData(json_encode($post_fields));
$this->httpRequest->setHeaders($authheaders);
$this->httpRequest->send();
$response = json_decode($this->httpRequest->getResponse());
return $response;
}
Any help on this would be greatly appreciated.

Answer 1

If anyone else is looking to do this without using the API, here is how I solved my question using curl.
// Prepare authorization headers
$authheaders = array(
"Authorization: Bearer " . $this->authtoken,
"Content-Type: application/pdf"
);
$url = self::FILE_UPLOAD_URL.$bucket.'/o/?uploadType=multipart&name='.$fileName.'';
$curl = curl_init();
curl_setopt($curl, CURLOPT_POSTFIELDS, $file);
curl_setopt($curl, CURLOPT_HTTPHEADER, $authheaders);
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($curl, CURLOPT_USERAGENT, "Goole Cloud Storage PHP Starter Application google-api-php-client/1.1.5");
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
// 1 is CURL_SSLVERSION_TLSv1, which is not always defined in PHP.
curl_setopt($curl, CURLOPT_SSLVERSION, 1);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HEADER, true);
$response = curl_exec($curl);