PowerBuilder

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>

PowerBuilder

integer li_rc
integer li_Success
oleobject loo_XmlInit
string ls_UploadId
oleobject loo_Rest
integer li_BTls
integer li_Port
integer li_BAutoReconnect
oleobject loo_AuthAws
string ls_ResponseXml
oleobject loo_Xml
oleobject loo_Part
integer li_HasMoreParts

li_Success = 0

// 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..

loo_XmlInit = create oleobject
li_rc = loo_XmlInit.ConnectToNewObject("Chilkat.Xml")
if li_rc < 0 then
    destroy loo_XmlInit
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_XmlInit.LoadXmlFile("s3_multipart_uploads/initiate.xml")
if li_Success <> 1 then
    Write-Debug "Did not find the initiate.xml XML file."
    destroy loo_XmlInit
    return
end if

ls_UploadId = loo_XmlInit.GetChildContent("UploadId")
Write-Debug "UploadId = " + ls_UploadId

loo_Rest = create oleobject
li_rc = loo_Rest.ConnectToNewObject("Chilkat.Rest")

// Connect to the Amazon AWS REST server.
li_BTls = 1
li_Port = 443
li_BAutoReconnect = 1
li_Success = loo_Rest.Connect("s3.amazonaws.com",li_Port,li_BTls,li_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.
loo_AuthAws = create oleobject
li_rc = loo_AuthAws.ConnectToNewObject("Chilkat.AuthAws")

loo_AuthAws.AccessKey = "AWS_ACCESS_KEY"
loo_AuthAws.SecretKey = "AWS_SECRET_KEY"
loo_AuthAws.ServiceName = "s3"

li_Success = loo_Rest.SetAuthAws(loo_AuthAws)

// Set the bucket name via the HOST header.
// In this case, the bucket name is "chilkat100".
loo_Rest.Host = "chilkat100.s3.amazonaws.com"

// Add the query parameters.
loo_Rest.AddQueryParam("uploadId",ls_UploadId)
loo_Rest.AddQueryParam("max-parts","100")
loo_Rest.AddQueryParam("part-number-marker","0")

// Our ObjectName in this case is "somethingBig.zip".
ls_ResponseXml = loo_Rest.FullRequestNoBody("GET","/somethingBig.zip")
if loo_Rest.LastMethodSuccess <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_XmlInit
    destroy loo_Rest
    destroy loo_AuthAws
    return
end if

// When successful, the S3 Storage service will respond with a 200 response code,
// with an XML body.  
if loo_Rest.ResponseStatusCode <> 200 then
    // Examine the request/response to see what happened.
    Write-Debug "response status code = " + string(loo_Rest.ResponseStatusCode)
    Write-Debug "response status text = " + loo_Rest.ResponseStatusText
    Write-Debug "response header: " + loo_Rest.ResponseHeader
    Write-Debug "response body: " + ls_ResponseXml
    Write-Debug "---"
    Write-Debug "LastRequestStartLine: " + loo_Rest.LastRequestStartLine
    Write-Debug "LastRequestHeader: " + loo_Rest.LastRequestHeader
end if

loo_Xml = create oleobject
li_rc = loo_Xml.ConnectToNewObject("Chilkat.Xml")

loo_Xml.LoadXml(ls_ResponseXml)

Write-Debug loo_Xml.GetXml()
Write-Debug "----"

// To iterate over the parts in the response, navigate to the 1st "Part" node
// and then iterate over siblings until there are no more.
loo_Part = loo_Xml.FindChild("Part")
if loo_Xml.LastMethodSuccess = 0 then
    Write-Debug "No parts exist."
    destroy loo_XmlInit
    destroy loo_Rest
    destroy loo_AuthAws
    destroy loo_Xml
    return
end if

li_HasMoreParts = 1
do while li_HasMoreParts = 1
    Write-Debug "PartNumber: " + loo_Part.GetChildContent("PartNumber")
    Write-Debug "LastModified: " + loo_Part.GetChildContent("LastModified")
    Write-Debug "ETag: " + loo_Part.GetChildContent("ETag")
    Write-Debug "Size: " + loo_Part.GetChildContent("Size")
    Write-Debug "----"

    // Advance to the next sibling until we run out.
    li_HasMoreParts = loo_Part.NextSibling2()
loop

destroy loo_Part


destroy loo_XmlInit
destroy loo_Rest
destroy loo_AuthAws
destroy loo_Xml