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(VB.NET UWP/WinRT) Set Container ACL

Azure Storage Blob Service REST API: Sample code to set the permissions of a container.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

' Azure Blob Service Example: Set Container ACL
' See also: https://msdn.microsoft.com/en-us/library/azure/dd179391.aspx

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

Dim rest As New Chilkat.Rest

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


' Provide Azure Cloud credentials for the REST call.
Dim azAuth As New 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: 2020-08-04" header to be automatically added.
azAuth.XMsVersion = "2020-08-04"
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.

' The XML body of the request will look like this:

' <?xml version="1.0" encoding="utf-8"?>
' <SignedIdentifiers>
'   <SignedIdentifier> 
'     <Id>unique-character-value-of-up-to-64-chars</Id>
'     <AccessPolicy>
'       <Start>start-time</Start>
'       <Expiry>expiry-time</Expiry>
'       <Permission>abbreviated-permission-list</Permission>
'     </AccessPolicy>
'   </SignedIdentifier>
' </SignedIdentifiers>

' Generate a random 32-character string.
Dim prng As New Chilkat.Prng
Dim randomId As String = prng.RandomString(32,True,True,True)

' Get the current system date/time in ISO 8061 format
Dim dt As New Chilkat.CkDateTime
dt.SetFromCurrentSystemTime()
Dim bLocal As Boolean = False
' Get the current date/time in ISO 8061 UTC format.
Dim curDtStr As String = dt.GetAsTimestamp(bLocal)
' The expire time will be 365 days in the future.
success = dt.AddDays(365)
Dim expireDtStr As String = dt.GetAsTimestamp(bLocal)

' Build the request:
Dim xml As New Chilkat.Xml
xml.Tag = "SignedIdentifiers"
Dim xSignedId As Chilkat.Xml = xml.NewChild("SignedIdentifier","")
xSignedId.NewChild2("Id",randomId)
Dim xAccessPolicy As Chilkat.Xml = xSignedId.NewChild("AccessPolicy","")
xAccessPolicy.NewChild2("Start",curDtStr)
xAccessPolicy.NewChild2("Expiry",expireDtStr)
xAccessPolicy.NewChild2("Permission","rwd")



' Show the XML..
Debug.WriteLine(xml.GetXml())

' The expected response is a 200 response status code with no response body.
Dim responseStr As String = Await rest.FullRequestStringAsync("PUT","/mycontainer?restype=container&comp=acl",xml.GetXml())
If (rest.LastMethodSuccess <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If



' When successful, the Azure Storage service will respond with a 200 response status code,
' with no response body.

If (rest.ResponseStatusCode <> 200) Then
    ' Examine the request/response to see what happened.
    Debug.WriteLine("response status code = " & rest.ResponseStatusCode)
    Debug.WriteLine("response status text = " & rest.ResponseStatusText)
    Debug.WriteLine("response header: " & rest.ResponseHeader)
    Debug.WriteLine("response body (if any): " & responseStr)
    Debug.WriteLine("---")
    Debug.WriteLine("LastRequestStartLine: " & rest.LastRequestStartLine)
    Debug.WriteLine("LastRequestHeader: " & rest.LastRequestHeader)
    Exit Sub
End If


Debug.WriteLine("Success.")

 

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