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Azure Storage: Download Blob to File

See more Azure Cloud Storage Examples

Sample code to download an Azure blob to a file. AutoIt

Local $bSuccess = False

;  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.

;  Setup a file stream for the download
$oFileStream = ObjCreate("Chilkat.Stream")
$oFileStream.SinkFile = "C:/temp/qa_output/starfish.jpg"

;  Indicate that the call to FullRequestNoBody should send the response body
;  to fileStream if the response status code is 200.
;  If a non-success response status code is received, then nothing
;  is streamed to the output file and the error response is returned by FullRequestNoBody.
Local $iExpectedStatus = 200
$oRest.SetResponseBodyStream($iExpectedStatus,True,$oFileStream)

;  The Azure blob container is "test", the file is "starfish.jpg"
Local $sResponseStr = $oRest.FullRequestNoBody("GET","/test/starfish.jpg")
If ($oRest.LastMethodSuccess <> True) 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)