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(Excel) S3 Abort Multipart Upload

This operation aborts a multipart upload. After a multipart upload is aborted, no additional parts can be uploaded using that upload ID. The storage consumed by any previously uploaded parts will be freed. However, if any part uploads are currently in progress, those part uploads might or might not succeed. As a result, it might be necessary to abort a given multipart upload multiple times in order to completely free all storage consumed by all parts. To verify that all parts have been removed, so you don't get charged for the part storage, use the {{-s3_list_parts:::List Parts-}} example to ensure the parts list is empty.

This example sends a DELETE request that looks like this:

DELETE /ObjectName?uploadId=UploadId HTTP/1.1
Host: BucketName.s3.amazonaws.com
Date: Date
Authorization: authorization string

The following is a sample response. A 204 response code is expected.

HTTP/1.1 204 OK
x-amz-id-2: Weag1LuByRx9e6j5Onimru9pO4ZVKnJ2Qz7/C1NPcfTWAtRPfTaOFg==
x-amz-request-id: 996c76696e6727732072657175657374
Date:  Mon, 1 Nov 2010 20:34:56 GMT
Content-Length: 0
Connection: keep-alive
Server: AmazonS3

Download Excel Class Modules

Chilkat Excel Class Modules

'  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
'  List Parts

'  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..

Dim xmlInit As Chilkat.Xml
Set xmlInit = Chilkat.NewXml

success = xmlInit.LoadXmlFile("s3_multipart_uploads/initiate.xml")
If (success <> True) Then
    Debug.Print "Did not find the initiate.xml XML file."
    Exit Sub
End If


uploadId = xmlInit.GetChildContent("UploadId")
Debug.Print "UploadId = "; uploadId

Dim rest As Chilkat.Rest
Set rest = Chilkat.NewRest

'  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.
Dim authAws As Chilkat.AuthAws
Set authAws = Chilkat.NewAuthAws
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"

'  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:
success = rest.AddQueryParam("uploadId",uploadId)

'  Our ObjectName in this case is "somethingBig.zip".
'  A successful response will be a 204 status code with an empty response body.

responseBody = rest.FullRequestNoBody("DELETE","/somethingBig.zip")
If (rest.LastMethodSuccess <> True) Then
    Debug.Print rest.LastErrorText
    Exit Sub
End If

'  When successful, the S3 Storage service will respond with a 204 response code
If (rest.ResponseStatusCode <> 204) Then
    '  Examine the request/response to see what happened.
    Debug.Print "response status code = "; rest.ResponseStatusCode
    Debug.Print "response status text = "; rest.ResponseStatusText
    Debug.Print "response header: "; rest.ResponseHeader
    Debug.Print "response body: "; responseBody
    Debug.Print "---"
    Debug.Print "LastRequestStartLine: "; rest.LastRequestStartLine
    Debug.Print "LastRequestHeader: "; rest.LastRequestHeader
End If

Debug.Print "Multipart upload aborted."

 

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