Xbase++

Azure Blob Service - List all Containers in a Storage Account

See more Azure Cloud Storage Examples

Azure Storage Blob Service REST API: Lists all the containers in a storage account. Xbase++

LOCAL nSuccess
LOCAL oRest
LOCAL nBTls
LOCAL nPort
LOCAL nBAutoReconnect
LOCAL oAzAuth
LOCAL cResponseStr
LOCAL oXml
LOCAL nNumContainers
LOCAL i
LOCAL cLastModDateStr
LOCAL oDateTime
LOCAL cLeaseState

nSuccess := 0

//  Azure Blob Service Example: List all of the containers in an account.

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

oRest := CreateObject("Chilkat.Rest")

//  Connect to the Azure Storage Blob Service
nBTls := 1
nPort := 443
nBAutoReconnect := 1
//  In this example, the storage account name is "chilkat".
nSuccess := oRest:Connect("chilkat.blob.core.windows.net", nPort, nBTls, nBAutoReconnect)
IF (nSuccess != 1)
    ? oRest:LastErrorText
    oRest:destroy()
    RETURN
ENDIF

//  Provide Azure Cloud credentials for the REST call.
oAzAuth := CreateObject("Chilkat.AuthAzureStorage")
oAzAuth:AccessKey := "AZURE_ACCESS_KEY"
//  The account name used here should match the 1st part of the domain passed in the call to Connect (above).
oAzAuth:Account := "chilkat"
oAzAuth:Scheme := "SharedKey"
oAzAuth:Service := "Blob"
//  This causes the "x-ms-version: 2021-08-06" header to be automatically added.
oAzAuth:XMsVersion := "2021-08-06"
nSuccess := oRest:SetAuthAzureStorage(oAzAuth)

//  URI parameters, such as "maxresults", are added by calling AddQueryParam
nSuccess := oRest:AddQueryParam("maxresults", "1000")

//  Note: The application does not need to explicitly set the following
//  headers: x-ms-date, Authorization.  These headers
//  are automatically set by Chilkat.

cResponseStr := oRest:FullRequestNoBody("GET", "/?comp=list")
IF (oRest:LastMethodSuccess != 1)
    ? oRest:LastErrorText
    oRest:destroy()
    oAzAuth:destroy()
    RETURN
ENDIF

//  When successful, the Azure Storage service will respond with a 200 response code,
//  with an XML body.  
IF (oRest:ResponseStatusCode != 200)
    //  Examine the request/response to see what happened.
    ? "response status code = " + Str(oRest:ResponseStatusCode)
    ? "response status text = " + oRest:ResponseStatusText
    ? "response header: " + oRest:ResponseHeader
    ? "response body (if any): " + cResponseStr
    ? "---"
    ? "LastRequestStartLine: " + oRest:LastRequestStartLine
    ? "LastRequestHeader: " + oRest:LastRequestHeader
    oRest:destroy()
    oAzAuth:destroy()
    RETURN
ENDIF

//  Load the XML response for parsing.
//  A sample XML response containing 2 containers is shown below.
oXml := CreateObject("Chilkat.Xml")
nSuccess := oXml:LoadXml(cResponseStr)

? oXml:GetXml()

//  Iterate over the containers, listing some information about each.
nSuccess := oXml:FindChild2("Containers")
nNumContainers := oXml:NumChildren
i := 0
DO WHILE (i < nNumContainers)
    nSuccess := oXml:GetChild2(i)
    ? "Container Name: " + oXml:GetChildContent("Name")
    cLastModDateStr := oXml:ChilkatPath("Properties|Last-Modified|*")
    ? "Last Modified: " + cLastModDateStr
    //  The date/time string can be loaded into a CkDateTime object for conversion to other date formats..
    oDateTime := CreateObject("Chilkat.CkDateTime")
    nSuccess := oDateTime:SetFromRfc822(cLastModDateStr)

    cLeaseState := oXml:ChilkatPath("Properties|LeaseState|*")
    ? "Lease State: " + cLeaseState

    nSuccess := oXml:GetParent2()
    i := i + 1
ENDDO
nSuccess := oXml:GetParent2()

//  Sample XML response:

//  	<?xml version="1.0" encoding="utf-8" ?>
//  	<EnumerationResults ServiceEndpoint="https://chilkat.blob.core.windows.net/">
//  	    <MaxResults>1000</MaxResults>
//  	    <Containers>
//  	        <Container>
//  	            <Name>test</Name>
//  	            <Properties>
//  	                <Last-Modified>Wed, 20 Apr 2016 01:02:25 GMT</Last-Modified>
//  	                <Etag>"0x8D368B77024C583"</Etag>
//  	                <LeaseStatus>unlocked</LeaseStatus>
//  	                <LeaseState>available</LeaseState>
//  	            </Properties>
//  	        </Container>
//  	        <Container>
//  	            <Name>test2</Name>
//  	            <Properties>
//  	                <Last-Modified>Tue, 03 May 2016 17:13:01 GMT</Last-Modified>
//  	                <Etag>"0x8D373762EB6AC85"</Etag>
//  	                <LeaseStatus>unlocked</LeaseStatus>
//  	                <LeaseState>available</LeaseState>
//  	            </Properties>
//  	        </Container>
//  	    </Containers>
//  	    <NextMarker />
//  	</EnumerationResults>

oRest:destroy()
oAzAuth:destroy()
oXml:destroy()
oDateTime:destroy()