Classic ASP
Azure Storage: Download Blob to File

Sample code to download an Azure blob to a file.
Chilkat Classic ASP Downloads

Classic ASP
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<%
success = 0

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

set rest = Server.CreateObject("Chilkat.Rest")

'  Connect to the Azure Storage Blob Service
bTls = 1
port = 443
bAutoReconnect = 1
'  In this example, the storage account name is "chilkat".
success = rest.Connect("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
    Response.End
End If

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

'  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
set fileStream = Server.CreateObject("Chilkat.Stream")
fileStream.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.
expectedStatus = 200
success = rest.SetResponseBodyStream(expectedStatus,1,fileStream)

'  The Azure blob container is "test", the file is "starfish.jpg"
responseStr = rest.FullRequestNoBody("GET","/test/starfish.jpg")
If (rest.LastMethodSuccess <> 1) Then

    '  Examine the request/response to see what happened.
    Response.Write "<pre>" & Server.HTMLEncode( "response status code = " & rest.ResponseStatusCode) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "response status text = " & rest.ResponseStatusText) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "response header: " & rest.ResponseHeader) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "response body (if any): " & responseStr) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "---") & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "LastRequestStartLine: " & rest.LastRequestStartLine) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "LastRequestHeader: " & rest.LastRequestHeader) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Success.") & "</pre>"

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