(PHP Extension) S3 Complete a Multipart Upload

This operation completes a multipart upload by assembling previously uploaded parts.

Processing of a Complete Multipart Upload request could take several minutes to complete. After Amazon S3 begins processing the request, it sends an HTTP response header that specifies a 200 OK response. While processing is in progress, Amazon S3 periodically sends whitespace characters to keep the connection from timing out. Because a request could fail after the initial 200 OK response has been sent, it is important that you check the response body to determine whether the request succeeded.

This example sends a POST request to complete a multipart upload, which looks like this:

POST /ObjectName?uploadId=UploadId HTTP/1.1
Host: BucketName.s3.amazonaws.com
Date: Date
Content-Length: Size
Authorization: authorization string

<CompleteMultipartUpload>
  <Part>
    <PartNumber>PartNumber</PartNumber>
    <ETag>ETag</ETag>
  </Part>
  ...
</CompleteMultipartUpload>

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

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

// The 1st step in an S3 multipart upload is to initiate it,
// as shown here: Initiate S3 Multipart Upload

// The 2nd step is to upload the parts
// as shown here: S3 Upload Parts

// The 3rd and final step (this example) is to complete the multipart upload.

// Other S3 Multipart Upload Examples:
// Abort Multipart Upload
// List Parts

// When the multipart upload was initiated, an UploadId was provided in the XML response, and it 
// was saved to a file.  Steps 2 and 3 begin by loading the XML and getting
// the Upload ID.

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

$uploadId = $xmlInit->getChildContent('UploadId');
print 'UploadId = ' . $uploadId . "\n";

// We'll also need the XML file that contains a record of the parts
// with part numbers and ETags.  (This file was produced when parts were being uploaded.)
$xmlPartsList = new CkXml();
$success = $xmlPartsList->LoadXmlFile('s3_multipart_uploads/partsList.xml');
if ($success != true) {
    print 'Did not find the partsList.xml XML file.' . "\n";
    exit;
}

$rest = new CkRest();

// Connect to the Amazon AWS REST server.
$bTls = true;
$port = 443;
$bAutoReconnect = true;
$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.
$authAws = new CkAuthAws();
$authAws->put_AccessKey('AWS_ACCESS_KEY');
$authAws->put_SecretKey('AWS_SECRET_KEY');
$authAws->put_ServiceName('s3');

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

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

// The "uploadId=UploadId" must be added as a query parameter.  This allows it to be 
// incorporated into the AWS signature calculation, which is a requirement.
// Therefore, we use AddQueryParam:
$rest->AddQueryParam('uploadId',$uploadId);

// Our ObjectName in this case is "somethingBig.zip".
$responseXml = $rest->fullRequestString('POST','/somethingBig.zip',$xmlPartsList->getXml());
if ($rest->get_LastMethodSuccess() != true) {
    print $rest->lastErrorText() . "\n";
    exit;
}

// When successful, the S3 Storage service will respond with a 200 response code,
// with an XML body.  
if ($rest->get_ResponseStatusCode() != 200) {
    // Examine the request/response to see what happened.
    print 'response status code = ' . $rest->get_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";
}

// Load the XML response into Chilkat XMl and emit via GetXml to see the XML in a pretty-printed (indented) readable format.
$xml = new CkXml();
$xml->LoadXml($responseXml);
print $xml->getXml() . "\n";
print '----' . "\n";

print 'Multipart upload completed.' . "\n";

?>