B4X

Azure Storage: Delete Blob

See more Azure Cloud Storage Examples

Demonstrates the Azure Delete Blob operation, which marks the specified blob for deletion. The blob is later deleted during garbage collection. B4X

Dim success As Boolean = False

'  Azure Blob Service Example: Delete a particular blob in a specified container.
'  See also: https://docs.microsoft.com/en-us/rest/api/storageservices/delete-blob

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

Dim rest As ChilkatRest
rest.Initialize("rest")

'  Connect to the Azure Storage Blob Service
Dim bTls As Boolean = True
Dim port As Int = 443
Dim bAutoReconnect As Boolean = True
'  In this example, the storage account name is "chilkat".
success = rest.Connect("chilkat.blob.core.windows.net", port, bTls, bAutoReconnect)
If success <> True Then
    Log(rest.LastErrorText)
    Return
End If


'  Provide Azure Cloud credentials for the REST call.
Dim azAuth As ChilkatAuthAzureStorage
azAuth.Initialize
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: x-ms-date, Authorization.  These headers
'  are automatically set by Chilkat.

'  A successful operation returns status code 202 (Accepted) with no response body.
'  This example deletes the blob named "helloWorld.txt" located in "mycontainer"
Dim responseStr As String = rest.FullRequestNoBody("DELETE", "/mycontainer/helloWorld.txt")
If rest.LastMethodSuccess <> True Then
    Log(rest.LastErrorText)
    Return
End If


If rest.ResponseStatusCode <> 202 Then
    '  Examine the request/response to see what happened.
    Log("response status code = " & rest.ResponseStatusCode)
    Log("response status text = " & rest.ResponseStatusText)
    Log("response header: " & rest.ResponseHeader)
    Log("response body (if any): " & responseStr)
    Log("---")
    Log("LastRequestStartLine: " & rest.LastRequestStartLine)
    Log("LastRequestHeader: " & rest.LastRequestHeader)
    Return
End If


Log("Successfully deleted the blob!")