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SQL Server Examples

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(SQL Server) S3 Complete a Multipart Upload

This operation completes a multipart upload by assembling previously uploaded parts.

Processing of a Complete Multipart Upload request could take several minutes to complete. After Amazon S3 begins processing the request, it sends an HTTP response header that specifies a 200 OK response. While processing is in progress, Amazon S3 periodically sends whitespace characters to keep the connection from timing out. Because a request could fail after the initial 200 OK response has been sent, it is important that you check the response body to determine whether the request succeeded.

This example sends a POST request to complete a multipart upload, which looks like this:

POST /ObjectName?uploadId=UploadId HTTP/1.1
Host: BucketName.s3.amazonaws.com
Date: Date
Content-Length: Size
Authorization: authorization string

<CompleteMultipartUpload>
  <Part>
    <PartNumber>PartNumber</PartNumber>
    <ETag>ETag</ETag>
  </Part>
  ...
</CompleteMultipartUpload>

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    --  This example requires the Chilkat API to have been previously unlocked.
    --  See Global Unlock Sample for sample code.

    --  The 1st step in an S3 multipart upload is to initiate it,
    --  as shown here: Initiate S3 Multipart Upload

    --  The 2nd step is to upload the parts
    --  as shown here: S3 Upload Parts

    --  The 3rd and final step (this example) is to complete the multipart upload.

    --  Other S3 Multipart Upload Examples:
    --  Abort Multipart Upload
    --  List Parts

    --  When the multipart upload was initiated, an UploadId was provided in the XML response, and it
    --  was saved to a file.  Steps 2 and 3 begin by loading the XML and getting
    --  the Upload ID.

    DECLARE @xmlInit int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Xml', @xmlInit OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    EXEC sp_OAMethod @xmlInit, 'LoadXmlFile', @success OUT, 's3_multipart_uploads/initiate.xml'
    IF @success <> 1
      BEGIN

        PRINT 'Did not find the initiate.xml XML file.'
        EXEC @hr = sp_OADestroy @xmlInit
        RETURN
      END

    DECLARE @uploadId nvarchar(4000)
    EXEC sp_OAMethod @xmlInit, 'GetChildContent', @uploadId OUT, 'UploadId'

    PRINT 'UploadId = ' + @uploadId

    --  We'll also need the XML file that contains a record of the parts
    --  with part numbers and ETags.  (This file was produced when parts were being uploaded.)
    DECLARE @xmlPartsList int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Xml', @xmlPartsList OUT

    EXEC sp_OAMethod @xmlPartsList, 'LoadXmlFile', @success OUT, 's3_multipart_uploads/partsList.xml'
    IF @success <> 1
      BEGIN

        PRINT 'Did not find the partsList.xml XML file.'
        EXEC @hr = sp_OADestroy @xmlInit
        EXEC @hr = sp_OADestroy @xmlPartsList
        RETURN
      END

    DECLARE @rest int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Rest', @rest OUT

    --  Connect to the Amazon AWS REST server.
    DECLARE @bTls int
    SELECT @bTls = 1
    DECLARE @port int
    SELECT @port = 443
    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, '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.
    DECLARE @authAws int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.AuthAws', @authAws OUT

    EXEC sp_OASetProperty @authAws, 'AccessKey', 'AWS_ACCESS_KEY'
    EXEC sp_OASetProperty @authAws, 'SecretKey', 'AWS_SECRET_KEY'
    EXEC sp_OASetProperty @authAws, 'ServiceName', 's3'

    EXEC sp_OAMethod @rest, 'SetAuthAws', @success OUT, @authAws

    --  Set the bucket name via the HOST header.
    --  In this case, the bucket name is "chilkat100".
    EXEC sp_OASetProperty @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:
    EXEC sp_OAMethod @rest, 'AddQueryParam', @success OUT, 'uploadId', @uploadId

    --  Our ObjectName in this case is "somethingBig.zip".
    DECLARE @responseXml nvarchar(4000)
    EXEC sp_OAMethod @xmlPartsList, 'GetXml', @sTmp0 OUT
    EXEC sp_OAMethod @rest, 'FullRequestString', @responseXml OUT, 'POST', '/somethingBig.zip', @sTmp0
    EXEC sp_OAGetProperty @rest, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @xmlInit
        EXEC @hr = sp_OADestroy @xmlPartsList
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @authAws
        RETURN
      END

    --  When successful, the S3 Storage service will respond with a 200 response code,
    --  with an XML body.
    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
    IF @iTmp0 <> 200
      BEGIN
        --  Examine the request/response to see what happened.

        EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
        PRINT 'response status code = ' + @iTmp0

        EXEC sp_OAGetProperty @rest, 'ResponseStatusText', @sTmp0 OUT
        PRINT 'response status text = ' + @sTmp0

        EXEC sp_OAGetProperty @rest, 'ResponseHeader', @sTmp0 OUT
        PRINT 'response header: ' + @sTmp0

        PRINT 'response body: ' + @responseXml

        PRINT '---'

        EXEC sp_OAGetProperty @rest, 'LastRequestStartLine', @sTmp0 OUT
        PRINT 'LastRequestStartLine: ' + @sTmp0

        EXEC sp_OAGetProperty @rest, 'LastRequestHeader', @sTmp0 OUT
        PRINT 'LastRequestHeader: ' + @sTmp0
      END

    --  Load the XML response into Chilkat XMl and emit via GetXml to see the XML in a pretty-printed (indented) readable format.
    DECLARE @xml int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Xml', @xml OUT

    EXEC sp_OAMethod @xml, 'LoadXml', @success OUT, @responseXml
    EXEC sp_OAMethod @xml, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0

    PRINT '----'


    PRINT 'Multipart upload completed.'

    EXEC @hr = sp_OADestroy @xmlInit
    EXEC @hr = sp_OADestroy @xmlPartsList
    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @authAws
    EXEC @hr = sp_OADestroy @xml


END
GO

 

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