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(Xojo Plugin) Set Container Metadata

Azure Storage Blob Service REST API: Sample code to set the user-defined metadata of a container.

Chilkat Xojo Plugin Download

Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

// Azure Blob Service Example: Set Container User-Defined Metadata
// See also: https://msdn.microsoft.com/en-us/library/azure/dd179362.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
bTls = True
Dim port As Int32
port = 443
Dim bAutoReconnect As Boolean
bAutoReconnect = True
// In this example, the storage account name is "chilkat".
Dim success As Boolean
success = rest.Connect("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect)
If (success <> True) Then
    System.DebugLog(rest.LastErrorText)
    Return
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.

// Add each name-value pair of metadata to associate with the container.
// To remove all metadata from the container, simply don't add any x-ms-meta- headers.
success = rest.AddHeader("x-ms-meta-Category","Images")
success = rest.AddHeader("x-ms-meta-Resolution","High")

// The expected success response is a 200 response status code with no response body.
// In this example, we are setting the metadata of the container named "mycontainer".
Dim responseStr As String
responseStr = rest.FullRequestNoBody("PUT","/mycontainer?restype=container&comp=metadata")
If (rest.LastMethodSuccess <> True) Then
    System.DebugLog(rest.LastErrorText)
    Return
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.
    System.DebugLog("response status code = " + Str(rest.ResponseStatusCode))
    System.DebugLog("response status text = " + rest.ResponseStatusText)
    System.DebugLog("response header: " + rest.ResponseHeader)
    System.DebugLog("response body (if any): " + responseStr)
    System.DebugLog("---")
    System.DebugLog("LastRequestStartLine: " + rest.LastRequestStartLine)
    System.DebugLog("LastRequestHeader: " + rest.LastRequestHeader)
    Return
End If

System.DebugLog("Success.")

 

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