Unicode C++
Unicode C++
Azure Storage: List Blobs
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Azure Storage Blob Service REST API: Sample code to fetch the list of blobs in the specified container.Chilkat Unicode C++ Downloads
#include <CkRestW.h>
#include <CkAuthAzureStorageW.h>
#include <CkXmlW.h>
#include <CkDateTimeW.h>
#include <CkDtObjW.h>
void ChilkatSample(void)
{
bool success = false;
// Azure Blob Service Example: List the blobs in a specified container.
// See also: https://msdn.microsoft.com/en-us/library/azure/dd135734.aspx
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
CkRestW 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".
success = rest.Connect(L"chilkat.blob.core.windows.net",port,bTls,bAutoReconnect);
if (success == false) {
wprintf(L"%s\n",rest.lastErrorText());
return;
}
// Provide Azure Cloud credentials for the REST call.
CkAuthAzureStorageW azAuth;
azAuth.put_AccessKey(L"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(L"chilkat");
azAuth.put_Scheme(L"SharedKey");
azAuth.put_Service(L"Blob");
// This causes the "x-ms-version: 2021-08-06" header to be automatically added.
azAuth.put_XMsVersion(L"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.
// The expected success response is a 200 response status code with an XML response body.
// In this example, we are listing the blobs in the container named "mycontainer".
const wchar_t *responseStr = rest.fullRequestNoBody(L"GET",L"/mycontainer?restype=container&comp=list");
if (rest.get_LastMethodSuccess() == false) {
wprintf(L"%s\n",rest.lastErrorText());
return;
}
// When successful, the Azure Storage service will respond with a 200 response status code,
// with an XML response body.
if (rest.get_ResponseStatusCode() != 200) {
// Examine the request/response to see what happened.
wprintf(L"response status code = %d\n",rest.get_ResponseStatusCode());
wprintf(L"response status text = %s\n",rest.responseStatusText());
wprintf(L"response header: %s\n",rest.responseHeader());
wprintf(L"response body (if any): %s\n",responseStr);
wprintf(L"---\n");
wprintf(L"LastRequestStartLine: %s\n",rest.lastRequestStartLine());
wprintf(L"LastRequestHeader: %s\n",rest.lastRequestHeader());
return;
}
// Load the XML response for parsing.
// An example of the response XML is shown below.
CkXmlW xml;
success = xml.LoadXml(responseStr);
wprintf(L"%s\n",xml.getXml());
// Let's iterate over the blobs...
CkDateTimeW lastMod;
int numBlobs = xml.NumChildrenAt(L"Blobs");
int i = 0;
CkDtObjW dt;
while (i < numBlobs) {
wprintf(L"---- Blob %d ----\n",i);
xml.put_I(i);
wprintf(L"Name: %s\n",xml.getChildContent(L"Blobs|Blob[i]|Name"));
wprintf(L"Content-Length: %s\n",xml.getChildContent(L"Blobs|Blob[i]|Properties|Content-Length"));
wprintf(L"Content-Type: %s\n",xml.getChildContent(L"Blobs|Blob[i]|Properties|Content-Type"));
wprintf(L"Content-MD5: %s\n",xml.getChildContent(L"Blobs|Blob[i]|Properties|Content-MD5"));
wprintf(L"BlobType: %s\n",xml.getChildContent(L"Blobs|Blob[i]|Properties|BlobType"));
wprintf(L"LeaseStatus: %s\n",xml.getChildContent(L"Blobs|Blob[i]|Properties|LeaseStatus"));
lastMod.SetFromRfc822(xml.getChildContent(L"Blobs|Blob[i]|Properties|Last-Modified"));
lastMod.ToDtObj(true,dt);
wprintf(L"Last-Modified YMD: %d,%d,%d\n",dt.get_Year(),dt.get_Month(),dt.get_Day());
i = i + 1;
}
wprintf(L"-------------------------\n");
// Use the ChilkatPath method to get information for a specific blob:
// For example, let's say we want the Last-Modified date/time for
// the blob named "helloWorld.txt"
const wchar_t *lastModStr = xml.chilkatPath(L"/C/Name,helloWorld.txt|..|Properties|Last-Modified|*");
wprintf(L"helloWorld.txt Last-Modified: %s\n",lastModStr);
wprintf(L"Success.\n");
// <?xml version="1.0" encoding="utf-8" ?>
// <EnumerationResults ServiceEndpoint="https://chilkat.blob.core.windows.net/" ContainerName="test">
// <Blobs>
// <Blob>
// <Name>hamletC.xml</Name>
// <Properties>
// <Last-Modified>Mon, 02 May 2016 23:50:30 GMT</Last-Modified>
// <Etag>0x8D372E48B6D323A</Etag>
// <Content-Length>279658</Content-Length>
// <Content-Type>application/octet-stream</Content-Type>
// <Content-Encoding />
// <Content-Language />
// <Content-MD5>4E6prI9haw81xadSLeEj3Q==</Content-MD5>
// <Cache-Control />
// <Content-Disposition>attachment; filename="hamletC.xml"</Content-Disposition>
// <BlobType>BlockBlob</BlobType>
// <LeaseStatus>unlocked</LeaseStatus>
// <LeaseState>available</LeaseState>
// </Properties>
// </Blob>
// <Blob>
// <Name>helloWorld.txt</Name>
// <Properties>
// <Last-Modified>Mon, 02 May 2016 15:21:55 GMT</Last-Modified>
// <Etag>0x8D3729D7EE38299</Etag>
// <Content-Length>12</Content-Length>
// <Content-Type>application/octet-stream</Content-Type>
// <Content-Encoding />
// <Content-Language />
// <Content-MD5>7Qdih1MuhjZehB6Sv8UNjA==</Content-MD5>
// <Cache-Control />
// <Content-Disposition>attachment; filename="helloWorld.txt"</Content-Disposition>
// <BlobType>BlockBlob</BlobType>
// <LeaseStatus>unlocked</LeaseStatus>
// <LeaseState>available</LeaseState>
// </Properties>
// </Blob>
// <Blob>
// <Name>thisIsATest.txt</Name>
// <Properties>
// <Last-Modified>Tue, 03 May 2016 00:22:13 GMT</Last-Modified>
// <Etag>0x8D372E8F9B2A62E</Etag>
// <Content-Length>1600</Content-Length>
// <Content-Type>application/octet-stream</Content-Type>
// <Content-Encoding />
// <Content-Language />
// <Content-MD5>FhgUXYfePg2ItsraPmz0Xg==</Content-MD5>
// <Cache-Control />
// <Content-Disposition>attachment; filename="thisIsATest.txt"</Content-Disposition>
// <BlobType>BlockBlob</BlobType>
// <LeaseStatus>unlocked</LeaseStatus>
// <LeaseState>available</LeaseState>
// </Properties>
// </Blob>
// </Blobs>
// <NextMarker />
// </EnumerationResults>
//
}