(MFC) Azure Storage: Set Blob Service Properties

Azure Storage Blob Service REST API: Sample code to set a blob's service properties.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkRest.h>
#include <CkAuthAzureStorage.h>
#include <CkXml.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // Azure Blob Service Example: Set Blob Service Properties
    // See also: https://msdn.microsoft.com/en-us/library/azure/hh452235.aspx

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

    CkRest 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 = rest.Connect("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect);
    if (success != true) {
        strOut.append(rest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Provide Azure Cloud credentials for the REST call.
    CkAuthAzureStorage azAuth;
    azAuth.put_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.put_Account("chilkat");
    azAuth.put_Scheme("SharedKey");
    azAuth.put_Service("Blob");
    // This causes the "x-ms-version: 2020-08-04" header to be automatically added.
    azAuth.put_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.

    // This example will set logging properties.  The XML body of the request
    // will look like this:

    // <?xml version="1.0" encoding="utf-8"?>
    // <StorageServiceProperties>
    //     <Logging>
    //         <Version>version-number</Version>
    //         <Delete>true|false</Delete>
    //         <Read>true|false</Read>
    //         <Write>true|false</Write>
    //         <RetentionPolicy>
    //             <Enabled>true|false</Enabled>
    //             <Days>number-of-days</Days>
    //         </RetentionPolicy>
    //     </Logging>

    // Build the request:
    CkXml xml;
    xml.put_Tag("StorageServiceProperties");
    CkXml *xLogging = xml.NewChild("Logging","");
    xLogging->NewChild2("Version","1.0");
    xLogging->NewChild2("Delete","true");
    xLogging->NewChild2("Read","true");
    xLogging->NewChild2("Write","true");
    CkXml *xRetension = xLogging->NewChild("RetentionPolicy","");
    xRetension->NewChild2("Enabled","true");
    xRetension->NewChild2("Days","7");
    delete xRetension;
    delete xLogging;

    // The expected response is a 202 response status code with no response body.
    const char *responseStr = rest.fullRequestString("PUT","/?restype=service&comp=properties",xml.getXml());
    if (rest.get_LastMethodSuccess() != true) {
        strOut.append(rest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // When successful, the Azure Storage service will respond with a 202 response code,
    // with no response body.
    if (rest.get_ResponseStatusCode() != 202) {
        // Examine the request/response to see what happened.
        strOut.append("response status code = ");
        strOut.appendInt(rest.get_ResponseStatusCode());
        strOut.append("\r\n");
        strOut.append("response status text = ");
        strOut.append(rest.responseStatusText());
        strOut.append("\r\n");
        strOut.append("response header: ");
        strOut.append(rest.responseHeader());
        strOut.append("\r\n");
        strOut.append("response body (if any): ");
        strOut.append(responseStr);
        strOut.append("\r\n");
        strOut.append("---");
        strOut.append("\r\n");
        strOut.append("LastRequestStartLine: ");
        strOut.append(rest.lastRequestStartLine());
        strOut.append("\r\n");
        strOut.append("LastRequestHeader: ");
        strOut.append(rest.lastRequestHeader());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append("Success: Blob service properties updated!");
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }