(Perl) Manage Bucket Storage Class

See more Google Cloud Storage Examples

Demonstrates how to manage a bucket's default storage class.

See Cloud Storage Classes for information about storage classes.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# 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 = chilkat::CkStringBuilder->new();
$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 = chilkat::CkJsonObject->new();
# 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 = chilkat::CkHttp->new();
$http->put_AuthToken($sbToken->getAsString());

$http->SetUrlVar("bucket_name","chilkat-ocean");
$url = "https://www.googleapis.com/storage/v1/b/{$bucket_name}?fields=storageClass";
# resp is a HttpResponse
$resp = $http->PText("PUT",$url,$json->emit(),"utf-8","application/json",0,0);
if ($http->get_LastMethodSuccess() == 0) {
    print $http->lastErrorText() . "\r\n";
    exit;
}

$responseCode = $resp->get_StatusCode();
if ($responseCode == 401) {
    print $resp->bodyStr() . "\r\n";
    print "If invalid credentials, then it is likely the access token expired." . "\r\n";
    print "Your app should automatically fetch a new access token and re-try." . "\r\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 . "\r\n";
print "Response body" . "\r\n";
print $resp->bodyStr() . "\r\n";

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