Chilkat Online Tools

ListChangedBlocks Perl Example

Amazon Elastic Block Store

use chilkat();

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

$rest = chilkat::CkRest->new();

$authAws = chilkat::CkAuthAws->new();
$authAws->put_AccessKey("AWS_ACCESS_KEY");
$authAws->put_SecretKey("AWS_SECRET_KEY");

# Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
$authAws->put_Region("us-west-2");
$authAws->put_ServiceName("ebs");
# SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
$rest->SetAuthAws($authAws);

# URL: https://ebs.us-west-2.amazonaws.com/
# Use the same region as specified above.
$success = $rest->Connect("ebs.us-west-2.amazonaws.com",443,1,1);
if ($success != 1) {
    print "ConnectFailReason: " . $rest->get_ConnectFailReason() . "\r\n";
    print $rest->lastErrorText() . "\r\n";
    exit;
}

$rest->AddHeader("Content-Type","application/x-amz-json-1.1");
$rest->AddHeader("X-Amz-Target","ListChangedBlocks");

$sbResponseBody = chilkat::CkStringBuilder->new();
$success = $rest->FullRequestNoBodySb("GET","/snapshots/{secondSnapshotId}/changedblocks",$sbResponseBody);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

$respStatusCode = $rest->get_ResponseStatusCode();
print "response status code = " . $respStatusCode . "\r\n";
if ($respStatusCode != 200) {
    print "Response Header:" . "\r\n";
    print $rest->responseHeader() . "\r\n";
    print "Response Body:" . "\r\n";
    print $sbResponseBody->getAsString() . "\r\n";
    exit;
}

$jResp = chilkat::CkJsonObject->new();
$jResp->LoadSb($sbResponseBody);

# The following code parses the JSON response.
# A sample JSON response is shown below the sample code.

# Use this online tool to generate parsing code from sample JSON:
# Generate Parsing Code from JSON

$BlockSize = $jResp->IntOf("BlockSize");
$ExpiryTime = $jResp->IntOf("ExpiryTime");
$NextToken = $jResp->stringOf("NextToken");
$VolumeSize = $jResp->IntOf("VolumeSize");
$i = 0;
$count_i = $jResp->SizeOfArray("ChangedBlocks");
while ($i < $count_i) {
    $jResp->put_I($i);
    $BlockIndex = $jResp->IntOf("ChangedBlocks[i].BlockIndex");
    $FirstBlockToken = $jResp->stringOf("ChangedBlocks[i].FirstBlockToken");
    $SecondBlockToken = $jResp->stringOf("ChangedBlocks[i].SecondBlockToken");
    $i = $i + 1;
}

# A sample JSON response body parsed by the above code:

# {
#   "BlockSize": number,
#   "ChangedBlocks": [
#     {
#       "BlockIndex": number,
#       "FirstBlockToken": "string",
#       "SecondBlockToken": "string"
#     }
#   ],
#   "ExpiryTime": number,
#   "NextToken": "string",
#   "VolumeSize": number
# }