Lua

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>

Lua

local chilkat = require("chilkat")

-- 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..

local xmlInit = chilkat.Xml.new()
local success = xmlInit:load_xml_file("s3_multipart_uploads/initiate.xml")
if not success then
    print("Did not find the initiate.xml XML file.")
    return
end

local uploadId = xmlInit:get_child_content("UploadId")
print("UploadId = " .. uploadId)

local rest = chilkat.Rest.new()

-- Connect to the Amazon AWS REST server.
local bTls = true
local port = 443
local 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.
local authAws = chilkat.AuthAws.new()
authAws.access_key = "AWS_ACCESS_KEY"
authAws.secret_key = "AWS_SECRET_KEY"
authAws.service_name = "s3"

success = rest:set_auth_aws(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:add_query_param("uploadId", uploadId)
rest:add_query_param("max-parts", "100")
rest:add_query_param("part-number-marker", "0")

-- Our ObjectName in this case is "somethingBig.zip".
local responseXml = rest:full_request_no_body("GET", "/somethingBig.zip")
if not rest.last_method_success then
    print(rest.last_error_text)
    return
end

-- When successful, the S3 Storage service will respond with a 200 response code,
-- with an XML body.
if rest.response_status_code ~= 200 then
    -- Examine the request/response to see what happened.
    print("response status code = " .. rest.response_status_code)
    print("response status text = " .. rest.response_status_text)
    print("response header: " .. rest.response_header)
    print("response body: " .. responseXml)
    print("---")
    print("LastRequestStartLine: " .. rest.last_request_start_line)
    print("LastRequestHeader: " .. rest.last_request_header)
end

local xml = chilkat.Xml.new()
xml:load_xml(responseXml)

print(xml:get_xml())
print("----")

-- To iterate over the parts in the response, navigate to the 1st "Part" node
-- and then iterate over siblings until there are no more.
local part = xml:find_child("Part")
if not xml.last_method_success then
    print("No parts exist.")
    return
end

local hasMoreParts = true
while hasMoreParts do
    print("PartNumber: " .. part:get_child_content("PartNumber"))
    print("LastModified: " .. part:get_child_content("LastModified"))
    print("ETag: " .. part:get_child_content("ETag"))
    print("Size: " .. part:get_child_content("Size"))
    print("----")

    -- Advance to the next sibling until we run out.
    hasMoreParts = part:next_sibling2()
end