(Tcl) S3 List Parts

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>

Chilkat Tcl Extension Downloads Chilkat Tcl Extension Downloads

load ./chilkat.dll

# 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..

set xmlInit [new_CkXml]

set success [CkXml_LoadXmlFile $xmlInit "s3_multipart_uploads/initiate.xml"]
if {$success != 1} then {
    puts "Did not find the initiate.xml XML file."
    delete_CkXml $xmlInit
    exit
}

set uploadId [CkXml_getChildContent $xmlInit "UploadId"]
puts "UploadId = $uploadId"

set rest [new_CkRest]

# Connect to the Amazon AWS REST server.
set bTls 1
set port 443
set bAutoReconnect 1
set success [CkRest_Connect $rest "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.
set authAws [new_CkAuthAws]

CkAuthAws_put_AccessKey $authAws "AWS_ACCESS_KEY"
CkAuthAws_put_SecretKey $authAws "AWS_SECRET_KEY"
CkAuthAws_put_ServiceName $authAws "s3"

set success [CkRest_SetAuthAws $rest $authAws]

# Set the bucket name via the HOST header.
# In this case, the bucket name is "chilkat100".
CkRest_put_Host $rest "chilkat100.s3.amazonaws.com"

# Add the query parameters.
CkRest_AddQueryParam $rest "uploadId" $uploadId
CkRest_AddQueryParam $rest "max-parts" "100"
CkRest_AddQueryParam $rest "part-number-marker" "0"

# Our ObjectName in this case is "somethingBig.zip".
set responseXml [CkRest_fullRequestNoBody $rest "GET" "/somethingBig.zip"]
if {[CkRest_get_LastMethodSuccess $rest] != 1} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkXml $xmlInit
    delete_CkRest $rest
    delete_CkAuthAws $authAws
    exit
}

# When successful, the S3 Storage service will respond with a 200 response code,
# with an XML body.  
if {[CkRest_get_ResponseStatusCode $rest] != 200} then {
    # Examine the request/response to see what happened.
    puts "response status code = [CkRest_get_ResponseStatusCode $rest]"
    puts "response status text = [CkRest_responseStatusText $rest]"
    puts "response header: [CkRest_responseHeader $rest]"
    puts "response body: $responseXml"
    puts "---"
    puts "LastRequestStartLine: [CkRest_lastRequestStartLine $rest]"
    puts "LastRequestHeader: [CkRest_lastRequestHeader $rest]"
}

set xml [new_CkXml]

CkXml_LoadXml $xml $responseXml

puts [CkXml_getXml $xml]
puts "----"

# To iterate over the parts in the response, navigate to the 1st "Part" node
# and then iterate over siblings until there are no more.
# part is a CkXml
set part [CkXml_FindChild $xml "Part"]
if {[CkXml_get_LastMethodSuccess $xml] == 0} then {
    puts "No parts exist."
    delete_CkXml $xmlInit
    delete_CkRest $rest
    delete_CkAuthAws $authAws
    delete_CkXml $xml
    exit
}

set hasMoreParts 1
while {$hasMoreParts == 1} {
    puts "PartNumber: [CkXml_getChildContent $part PartNumber]"
    puts "LastModified: [CkXml_getChildContent $part LastModified]"
    puts "ETag: [CkXml_getChildContent $part ETag]"
    puts "Size: [CkXml_getChildContent $part Size]"
    puts "----"

    # Advance to the next sibling until we run out.
    set hasMoreParts [CkXml_NextSibling2 $part]
}

delete_CkXml $part


delete_CkXml $xmlInit
delete_CkRest $rest
delete_CkAuthAws $authAws
delete_CkXml $xml