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(Excel) Glacier Upload Archive

Demonstrates how to add an archive to a vault. For a successful upload, your data is durably persisted. In response, Amazon S3 Glacier (Glacier) returns the archive ID in the x-amz-archive-id header of the response. You should save the archive ID returned so that you can access the archive later.

Note: This example requires Chilkat v9.5.0.78 or greater.

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Chilkat Excel Class Modules

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

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

' Connect to the Amazon AWS REST server in the desired region.

bTls = True

port = 443

bAutoReconnect = True

success = rest.Connect("glacier.us-west-2.amazonaws.com",port,bTls,bAutoReconnect)

' Provide AWS credentials.
Dim authAws As Chilkat.AuthAws
Set authAws = Chilkat.NewAuthAws
authAws.AccessKey = "AWS_ACCESS_KEY"
authAws.SecretKey = "AWS_SECRET_KEY"
authAws.ServiceName = "glacier"
authAws.Region = "us-west-2"

success = rest.SetAuthAws(authAws)

' --------------------------------------------------------------------------
' Note: The above REST connection and setup of the AWS credentials
' can be done once.  After connecting, any number of REST calls can be made.
' The "auto reconnect" property passed to rest.Connect indicates that if
' the connection is lost, a REST method call will automatically reconnect
' if needed.
' --------------------------------------------------------------------------

' 
' For more information, see Glacier Upload Archive Reference Documentation
' 
success = rest.AddHeader("x-amz-glacier-version","2012-06-01")

' We'll need to pre-compute the SHA256 tree hash and the SHA256 linear hash.
' The hashes are added in the following request headers:

' x-amz-sha256-tree-hash: SHA256 tree hash
' x-amz-content-sha256: SHA256 linear hash

' The file we'll be uploading

filePath = "qa_data/zips/somethingBig.zip"

Dim crypt As Chilkat.Crypt2
Set crypt = Chilkat.NewCrypt2
crypt.HashAlgorithm = "sha256-tree-hash"
crypt.EncodingMode = "hexlower"

treeHashHex = crypt.HashFileENC(filePath)
success = rest.AddHeader("x-amz-sha256-tree-hash",treeHashHex)

crypt.HashAlgorithm = "sha256"

linearHashHex = crypt.HashFileENC(filePath)
authAws.PrecomputedSha256 = linearHashHex

' We can optionally add a description
' In this case, we'll set the description equal to the local filepath of the file we're uploading.
success = rest.AddHeader("x-amz-archive-description",filePath)

' Upload the file to the vault named "chilkat"
Dim fileStream As Chilkat.Stream
Set fileStream = Chilkat.NewStream
fileStream.SourceFile = filePath


responseStr = rest.FullRequestStream("POST","/AWS_ACCOUNT_ID/vaults/chilkat/archives",fileStream)
If (rest.LastMethodSuccess <> True) Then
    Debug.Print rest.LastErrorText
    Exit Sub
End If


respStatusCode = rest.ResponseStatusCode
If (respStatusCode >= 400) Then
    Debug.Print "Response Status Code = "; respStatusCode
    Debug.Print "Response Header:"
    Debug.Print rest.ResponseHeader
    Debug.Print "Response Body:"
    Debug.Print responseStr
    Exit Sub
End If

' Success is indicated by a 201 response status with an empty response body.
Debug.Print "response status code = "; respStatusCode

' If successful, the response header looks like this.
' The Location and x-amz-archive-id are two items of information we may wish to save..

' HTTP/1.1 201 Created
' x-amzn-RequestId: AAABZpJrTyioDC_HsOmHae8EZp_uBSJr6cnGOLKp_XJCl-Q
' Date: Wed, 10 Feb 2017 12:00:00 GMT
' x-amz-sha256-tree-hash: beb0fe31a1c7ca8c6c04d574ea906e3f97b31fdca7571defb5b44dca89b5af60
' Location: /111122223333/vaults/examplevault/archives/NkbByEejwEggmBz2fTH ... GlqrEXAMPLEArchiveId
' x-amz-archive-id: NkbByEejwEggmBz2fTHgJrg0XBoDfjP4q6iu87-TjhqG6eGoOY9Z8i1_AUyUsu ... BfGlqrEXAMPLEArchiveId
' 


archiveId = rest.ResponseHdrByName("x-amz-archive-id")
Debug.Print "x-amz-archive-id = "; archiveId


location = rest.ResponseHdrByName("Location")
Debug.Print "Location = "; location

 

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