(C# UWP/WinRT) Set Container Metadata

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

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

// 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.

Chilkat.Rest rest = new Chilkat.Rest();

// Connect to the Azure Storage Blob Service
bool bTls = true;
int port = 443;
bool bAutoReconnect = true;
// In this example, the storage account name is "chilkat".
bool success = await rest.ConnectAsync("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

// Provide Azure Cloud credentials for the REST call.
Chilkat.AuthAzureStorage azAuth = 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".
string responseStr = await rest.FullRequestNoBodyAsync("PUT","/mycontainer?restype=container&comp=metadata");
if (rest.LastMethodSuccess != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

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

if (rest.ResponseStatusCode != 200) {
    // Examine the request/response to see what happened.
    Debug.WriteLine("response status code = " + Convert.ToString(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);
    return;
}

Debug.WriteLine("Success.");