Perl

S3 List Parts

See more Amazon S3 (new) Examples

This operation lists the parts that have been uploaded for a specific multipart upload.

This operation must include the upload ID, which you obtain by sending the initiate multipart upload request. This request returns a maximum of 1000 uploaded parts. The default number of parts returned is 1000 parts. You can restrict the number of parts returned by specifying the max-parts request parameter. If your multipart upload consists of more than 1000 parts, the response returns an IsTruncated field with the value of true, and a NextPartNumberMarker element. In subsequent List Parts requests you can include the part-number-marker query string parameter and set its value to the NextPartNumberMarker field value from the previous response.

This example sends GET request that looks like this:

GET /example-object?uploadId=XXBsb2FkIElEIGZvciBlbHZpbmcncyVcdS1tb3ZpZS5tMnRzEEEwbG9hZA&max-parts=100&part-number-marker=1 HTTP/1.1
Host: example-bucket.s3.amazonaws.com
Date: Mon, 1 Nov 2010 20:34:56 GMT
Authorization: authorization string

The following is a sample response:

HTTP/1.1 200 OK
x-amz-id-2: Uuag1LuByRx9e6j5Onimru9pO4ZVKnJ2Qz7/C1NPcfTWAtRPfTaOFg==
x-amz-request-id: 656c76696e6727732072657175657374
Date: Mon, 1 Nov 2010 20:34:56 GMT
Content-Length: 985
Connection: keep-alive
Server: AmazonS3

<?xml version="1.0" encoding="UTF-8"?>
<ListPartsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
  <Bucket>example-bucket</Bucket>
  <Key>example-object</Key>
  <UploadId>XXBsb2FkIElEIGZvciBlbHZpbmcncyVcdS1tb3ZpZS5tMnRzEEEwbG9hZA</UploadId>
  <Initiator>
      <ID>arn:aws:iam::111122223333:user/some-user-11116a31-17b5-4fb7-9df5-b288870f11xx</ID>
      <DisplayName>umat-user-11116a31-17b5-4fb7-9df5-b288870f11xx</DisplayName>
  </Initiator>
  <Owner>
    <ID>75aa57f09aa0c8caeab4f8c24e99d10f8e7faeebf76c078efc7c6caea54ba06a</ID>
    <DisplayName>someName</DisplayName>
  </Owner>
  <StorageClass>STANDARD</StorageClass>
  <PartNumberMarker>1</PartNumberMarker>
  <NextPartNumberMarker>3</NextPartNumberMarker>
  <MaxParts>2</MaxParts>
  <IsTruncated>true</IsTruncated>
  <Part>
    <PartNumber>2</PartNumber>
    <LastModified>2010-11-10T20:48:34.000Z</LastModified>
    <ETag>"7778aef83f66abc1fa1e8477f296d394"</ETag>
    <Size>10485760</Size>
  </Part>
  <Part>
    <PartNumber>3</PartNumber>
    <LastModified>2010-11-10T20:48:33.000Z</LastModified>
    <ETag>"aaaa18db4cc2f85cedef654fccc4a4x8"</ETag>
    <Size>10485760</Size>
  </Part>
</ListPartsResult>

Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

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

# Other S3 Multipart Upload Examples:
# Initiate Multipart Upload
# S3 Upload Parts
# Complete Multipart Upload
# Abort Multipart Upload

# When the multipart upload was initiated, an UploadId was provided in the XML response, and
# we saved it to a file.  We'll get the upload ID from there..

my $xmlInit = Chilkat2::Xml->new;
my $success = $xmlInit->LoadXmlFile('s3_multipart_uploads/initiate.xml');
if (!$success) {
    print "Did not find the initiate.xml XML file.\n";
    exit;
}

my $uploadId = $xmlInit->GetChildContent('UploadId');
print 'UploadId = ', $uploadId, "\n";

my $rest = Chilkat2::Rest->new;

# Connect to the Amazon AWS REST server.
my $bTls = 1;
my $port = 443;
my $bAutoReconnect = 1;
$success = $rest->Connect('s3.amazonaws.com', $port, $bTls, $bAutoReconnect);

# ----------------------------------------------------------------------------
# Important: For buckets created in regions outside us-east-1,
# there are three important changes that need to be made.
# See Working with S3 Buckets in Non-us-east-1 Regions for the details.
# ----------------------------------------------------------------------------

# Provide AWS credentials for the REST call.
my $authAws = Chilkat2::AuthAws->new;
$authAws->AccessKey('AWS_ACCESS_KEY');
$authAws->SecretKey('AWS_SECRET_KEY');
$authAws->ServiceName('s3');

$success = $rest->SetAuthAws($authAws);

# Set the bucket name via the HOST header.
# In this case, the bucket name is "chilkat100".
$rest->Host('chilkat100.s3.amazonaws.com');

# Add the query parameters.
$rest->AddQueryParam('uploadId', $uploadId);
$rest->AddQueryParam('max-parts', '100');
$rest->AddQueryParam('part-number-marker', '0');

# Our ObjectName in this case is "somethingBig.zip".
my $responseXml = $rest->FullRequestNoBody('GET', '/somethingBig.zip');
if (!$rest->LastMethodSuccess) {
    print $rest->LastErrorText, "\n";
    exit;
}

# When successful, the S3 Storage service will respond with a 200 response code,
# with an XML body.
if ($rest->ResponseStatusCode != 200) {
    # Examine the request/response to see what happened.
    print 'response status code = ', $rest->ResponseStatusCode, "\n";
    print 'response status text = ', $rest->ResponseStatusText, "\n";
    print 'response header: ', $rest->ResponseHeader, "\n";
    print 'response body: ', $responseXml, "\n";
    print "---\n";
    print 'LastRequestStartLine: ', $rest->LastRequestStartLine, "\n";
    print 'LastRequestHeader: ', $rest->LastRequestHeader, "\n";
}

my $xml = Chilkat2::Xml->new;
$xml->LoadXml($responseXml);

print $xml->GetXml(), "\n";
print "----\n";

# To iterate over the parts in the response, navigate to the 1st "Part" node
# and then iterate over siblings until there are no more.
my $part = $xml->FindChild('Part');
if (!$xml->LastMethodSuccess) {
    print "No parts exist.\n";
    exit;
}

my $hasMoreParts = 1;
while ($hasMoreParts) {
    print 'PartNumber: ', $part->GetChildContent('PartNumber'), "\n";
    print 'LastModified: ', $part->GetChildContent('LastModified'), "\n";
    print 'ETag: ', $part->GetChildContent('ETag'), "\n";
    print 'Size: ', $part->GetChildContent('Size'), "\n";
    print "----\n";

    # Advance to the next sibling until we run out.
    $hasMoreParts = $part->NextSibling2();
}