Classic ASP
Classic ASP
Azure File Service: Upload File
See more Azure Cloud Storage Examples
Sample code to upload a file to a directory in a share in the Azure File Service. A file is uploaded by first creating the file in the Azure share and then writes a range of bytes to the file. Azure imposes a 4MB limit for each PUT to write a range. Files larger than 4MB need to be uploaded by making multiple "Put Range" calls. This example uploads a file small enough for a single "Put Range" call.Chilkat Classic ASP Downloads
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success = 0
' Azure File Service Example: Upload a file.
' See: https://docs.microsoft.com/en-us/rest/api/storageservices/create-share
' also see: https://docs.microsoft.com/en-us/rest/api/storageservices/put-range
' 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.file.core.windows.net",port,bTls,bAutoReconnect)
If (success <> 1) Then
Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
Response.End
End If
' This example will upload a relatively small file (760K), so it may as well
' just be load it into memory..
set jpgData = Server.CreateObject("Chilkat.BinData")
success = jpgData.LoadFile("qa_data/jpg/penguins.jpg")
' Provide Azure Cloud credentials for the REST calls.
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 = "File"
' 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: x-ms-date, Authorization. These headers
' are automatically set by Chilkat.
' However, a few additional headers are required for the "Create File" operation:
success = rest.AddHeader("x-ms-type","file")
' This required header specifies the final size of the file (or the maximum size it can be).
set sbFileSize = Server.CreateObject("Chilkat.StringBuilder")
success = sbFileSize.AppendInt(jpgData.NumBytes)
success = rest.AddHeader("x-ms-content-length",sbFileSize.GetAsString())
' Send a PUT request to create the file (or replace the file if it already exists).
' This will initialize the file in the Azure file storage. To upload content, we'll need
' to do the "Put Range" operation one or more times.
' The following will create the file "penguins.jpg" in the share "pip", in the directory "/wildlife/antarctic"
responseStr = rest.FullRequestNoBody("PUT","/pip/wildlife/antarctic/penguins.jpg")
If (rest.LastMethodSuccess <> 1) Then
Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
Response.End
End If
' When successful, the Azure File Service will respond with a 201 (Created) response status code,
' with no XML response body. If an error response is returned, there will be an XML response body.
If (rest.ResponseStatusCode <> 201) 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( "Successfully created penguins.jpg") & "</pre>"
' --------------------------------------------------------------------------------
' Upload the file data...
' Make sure the headers from the "Create File" operation are removed.
success = rest.ClearAllHeaders()
' The only tricky part here is to correctly add the x-ms-range header.
' It will be formatted like this:
' x-ms-range: bytes=0-759623
set sbRange = Server.CreateObject("Chilkat.StringBuilder")
success = sbRange.Append("bytes=0-")
success = sbRange.AppendInt(jpgData.NumBytes - 1)
success = rest.AddHeader("x-ms-range",sbRange.GetAsString())
' The x-ms-write header is also required:
success = rest.AddHeader("x-ms-write","update")
set sbResponseBody = Server.CreateObject("Chilkat.StringBuilder")
' IMPORTANT: Don't forget the "?comp=range" at the end of the path passed in the 2nd argument.
success = rest.FullRequestBd("PUT","/pip/wildlife/antarctic/penguins.jpg?comp=range",jpgData,sbResponseBody)
If (success <> 1) Then
' This would indicate a failure where no response was received.
Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
Response.End
End If
' A 201 response indicates the data was uploaded.
If (rest.ResponseStatusCode <> 201) 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( "Successfully uploaded data into penguins.jpg") & "</pre>"
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