B4X

Azure Storage: Delete Container

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Azure Storage Blob Service REST API: Sample code to mark a container for deletion. The container and any blobs contained within it are later deleted during garbage collection. B4X

Dim success As Boolean = False

'  Azure Blob Service Example: Delete Container
'  See also: https://msdn.microsoft.com/en-us/library/azure/dd179408.aspx

'  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.

'  To call Delete Container on a container that has an active lease, specify the lease ID in this header. 
'  If this header is not specified when there is an active lease, Delete Container will return 409 (Conflict). 
'  If you specify the wrong lease ID, or a lease ID on a container that does not have an active lease, 
'  Delete Container will return 412 (Precondition failed).

'  IMPORTANT: Delete this line, or insert a valid lease ID, otherwise the request
'  will fail with a 400 status code..
success = rest.AddHeader("x-ms-lease-id", "SOME_LEASE_ID")

'  The expected success response is a 202 response status code with no response body.
'  In this example, the container to be deleted is named "mycontainer".
Dim responseStr As String = rest.FullRequestNoBody("DELETE", "/mycontainer?restype=container")
If rest.LastMethodSuccess <> True Then
    Log(rest.LastErrorText)
    Return
End If


'  When successful, the Azure Storage service will respond with a 202 response code,
'  with no response body.

'  If the container with the same name already exists, then the operation will fail.
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("Success: Container marked for deletion.")