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(Swift) 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 Downloads for the Swift Programming Language

MAC OS X (Cocoa) Objective-C/Swift Libs

iOS Objective-C/Swift Libs

func chilkatTest() {
    //  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..

    let xmlInit = CkoXml()
    var success: Bool = xmlInit.LoadXmlFile("s3_multipart_uploads/initiate.xml")
    if success != true {
        print("Did not find the initiate.xml XML file.")
        return
    }

    var uploadId: String? = xmlInit.GetChildContent("UploadId")
    print("UploadId = \(uploadId!)")

    let rest = CkoRest()

    //  Connect to the Amazon AWS REST server.
    var bTls: Bool = true
    var port: Int = 443
    var bAutoReconnect: Bool = true
    success = rest.Connect("s3.amazonaws.com", port: port, tls: bTls, autoReconnect: 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.
    let authAws = CkoAuthAws()
    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", value: uploadId)
    rest.AddQueryParam("max-parts", value: "100")
    rest.AddQueryParam("part-number-marker", value: "0")

    //  Our ObjectName in this case is "somethingBig.zip".
    var responseXml: String? = rest.FullRequestNoBody("GET", uriPath: "/somethingBig.zip")
    if rest.LastMethodSuccess != true {
        print("\(rest.LastErrorText)")
        return
    }

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

    let xml = CkoXml()
    xml.LoadXml(responseXml)

    print("\(xml.GetXml())")
    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.
    var part: CkoXml? = xml.FindChild("Part")
    if xml.LastMethodSuccess == false {
        print("No parts exist.")
        return
    }

    var hasMoreParts: Bool = true
    while hasMoreParts == true {
        print("PartNumber: \(part!.GetChildContent("PartNumber"))")
        print("LastModified: \(part!.GetChildContent("LastModified"))")
        print("ETag: \(part!.GetChildContent("ETag"))")
        print("Size: \(part!.GetChildContent("Size"))")
        print("----")

        //  Advance to the next sibling until we run out.
        hasMoreParts = part!.NextSibling2()
    }

    part = nil

}

 

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