AutoIt

Azure Storage: Upload Empty File to Block Blob

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Demonstrates how to create an empty block blob in Azure Storage. AutoIt

Local $bSuccess = False

; Azure Blob Service Example: Demonstrates how to create an empty block blob.
; See also: https://msdn.microsoft.com/en-us/library/azure/dd179451.aspx

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

$oRest = ObjCreate("Chilkat.Rest")

; Connect to the Azure Storage Blob Service
Local $bTls = True
Local $iPort = 443
Local $bAutoReconnect = True
; In this example, the storage account name is "chilkat".
$bSuccess = $oRest.Connect("chilkat.blob.core.windows.net",$iPort,$bTls,$bAutoReconnect)
If ($bSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

; Provide Azure Cloud credentials for the REST call.
$oAzAuth = ObjCreate("Chilkat.AuthAzureStorage")
$oAzAuth.AccessKey = "AZURE_ACCESS_KEY"
; The account name used here should match the 1st part of the domain passed in the call to Connect (above).
$oAzAuth.Account = "chilkat"
$oAzAuth.Scheme = "SharedKey"
$oAzAuth.Service = "Blob"
; This causes the "x-ms-version: 2021-08-06" header to be automatically added.
$oAzAuth.XMsVersion = "2021-08-06"
$bSuccess = $oRest.SetAuthAzureStorage($oAzAuth)

; Note: The application does not need to explicitly set the following
; headers: Content-Length, x-ms-date, Authorization.  These headers
; are automatically set by Chilkat.

; IMPORTANT: Make sure to set the x-ms-blob-type header:
$bSuccess = $oRest.AddHeader("x-ms-blob-type","BlockBlob")

; To create an empty blob, upload a zero-length string.
Local $sResponseStr = $oRest.FullRequestString("PUT","/mycontainer/empty.txt","")
If ($oRest.LastMethodSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

; When successful, the Azure Storage service will respond with a 201 response status code,
; with no response body.

If ($oRest.ResponseStatusCode <> 201) Then
    ; Examine the request/response to see what happened.
    ConsoleWrite("response status code = " & $oRest.ResponseStatusCode & @CRLF)
    ConsoleWrite("response status text = " & $oRest.ResponseStatusText & @CRLF)
    ConsoleWrite("response header: " & $oRest.ResponseHeader & @CRLF)
    ConsoleWrite("response body (if any): " & $sResponseStr & @CRLF)
    ConsoleWrite("---" & @CRLF)
    ConsoleWrite("LastRequestStartLine: " & $oRest.LastRequestStartLine & @CRLF)
    ConsoleWrite("LastRequestHeader: " & $oRest.LastRequestHeader & @CRLF)
    Exit
EndIf

ConsoleWrite("Success." & @CRLF)