(PHP ActiveX) Manage Bucket Storage Class

See more Google Cloud Storage Examples

See Cloud Storage Classes for information about storage classes.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

$success = 0;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// This example uses a previously obtained access token having permission for the 
// scope "https://www.googleapis.com/auth/cloud-platform"

// In this example, Get Google Cloud Storage OAuth2 Access Token, 
// the service account access token was saved to a text file.  This example fetches the access token from the file..
$sbToken = new COM("Chilkat.StringBuilder");
$sbToken->LoadFile('qa_data/tokens/googleCloudStorageAccessToken.txt','utf-8');

// ---- Step 1
// Create the JSON body of the PUT request that will be sent.

// {
//   "storageClass": "[STORAGE_CLASS]"
// }
// 

$json = new COM("Chilkat.JsonObject");
// Be careful if using the "regional" storage class.  See the note below about the 400 error response.
$json->UpdateString('storageClass','nearline');

// ---- Step 2
// Send a PUT equivalent to this curl command

// curl -X PUT --data-binary @[JSON_FILE_NAME].json \
//     -H "Authorization: Bearer [OAUTH2_TOKEN]" \
//     -H "Content-Type: application/json" \
//     "https://www.googleapis.com/storage/v1/b/[BUCKET_NAME]?fields=storageClass"

$http = new COM("Chilkat.Http");
$http->AuthToken = $sbToken->getAsString();

$http->SetUrlVar('bucket_name','chilkat-ocean');
$url = 'https://www.googleapis.com/storage/v1/b/{$bucket_name}?fields=storageClass';
$resp = new COM("Chilkat.HttpResponse");
$success = $http->HttpJson('PUT',$url,$json,'application/json',$resp);
if ($success == 0) {
    print $http->LastErrorText . "\n";
    exit;
}

$responseCode = $resp->StatusCode;
if ($responseCode == 401) {
    print $resp->BodyStr . "\n";
    print 'If invalid credentials, then it is likely the access token expired.' . "\n";
    print 'Your app should automatically fetch a new access token and re-try.' . "\n";
    exit;
}

// On my first try at running this code, I received the following error response:
// Response code: 400
// Response body
// {
//  "error": {
//   "errors": [
//    {
//     "domain": "global",
//     "reason": "invalid",
//     "message": "The combination of locationConstraint and storageClass you provided is not supported for your project"
//    }
//   ],
//   "code": 400,
//   "message": "The combination of locationConstraint and storageClass you provided is not supported for your project"
//  }
// }
// 

// This was because my storage location was a Multi-regional location, and I tried to assign the "regional" storage class,
// which is not allowed. 

print 'Response code: ' . $responseCode . "\n";
print 'Response body' . "\n";
print $resp->BodyStr . "\n";

// A response code = 200 indicates success, and the response body contains the JSON
// 
// Response code: 200
// Response body
// {
//  "storageClass": "NEARLINE"
// }
// 

?>