PureBasic

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. PureBasic

IncludeFile "CkXml.pb"
IncludeFile "CkRest.pb"
IncludeFile "CkAuthAzureStorage.pb"
IncludeFile "CkDateTime.pb"

Procedure ChilkatExample()

    success.i = 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.

    rest.i = CkRest::ckCreate()
    If rest.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Connect to the Azure Storage Blob Service
    bTls.i = 1
    port.i = 443
    bAutoReconnect.i = 1
    ; In this example, the storage account name is "chilkat".
    success = CkRest::ckConnect(rest,"chilkat.blob.core.windows.net",port,bTls,bAutoReconnect)
    If success <> 1
        Debug CkRest::ckLastErrorText(rest)
        CkRest::ckDispose(rest)
        ProcedureReturn
    EndIf

    ; Provide Azure Cloud credentials for the REST call.
    azAuth.i = CkAuthAzureStorage::ckCreate()
    If azAuth.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkAuthAzureStorage::setCkAccessKey(azAuth, "AZURE_ACCESS_KEY")
    ; The account name used here should match the 1st part of the domain passed in the call to Connect (above).
    CkAuthAzureStorage::setCkAccount(azAuth, "chilkat")
    CkAuthAzureStorage::setCkScheme(azAuth, "SharedKey")
    CkAuthAzureStorage::setCkService(azAuth, "Blob")
    ; This causes the "x-ms-version: 2021-08-06" header to be automatically added.
    CkAuthAzureStorage::setCkXMsVersion(azAuth, "2021-08-06")
    success = CkRest::ckSetAuthAzureStorage(rest,azAuth)

    ; URI parameters, such as "maxresults", are added by calling AddQueryParam
    success = CkRest::ckAddQueryParam(rest,"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.

    responseStr.s = CkRest::ckFullRequestNoBody(rest,"GET","/?comp=list")
    If CkRest::ckLastMethodSuccess(rest) <> 1
        Debug CkRest::ckLastErrorText(rest)
        CkRest::ckDispose(rest)
        CkAuthAzureStorage::ckDispose(azAuth)
        ProcedureReturn
    EndIf

    ; When successful, the Azure Storage service will respond with a 200 response code,
    ; with an XML body.  
    If CkRest::ckResponseStatusCode(rest) <> 200
        ; Examine the request/response to see what happened.
        Debug "response status code = " + Str(CkRest::ckResponseStatusCode(rest))
        Debug "response status text = " + CkRest::ckResponseStatusText(rest)
        Debug "response header: " + CkRest::ckResponseHeader(rest)
        Debug "response body (if any): " + responseStr
        Debug "---"
        Debug "LastRequestStartLine: " + CkRest::ckLastRequestStartLine(rest)
        Debug "LastRequestHeader: " + CkRest::ckLastRequestHeader(rest)
        CkRest::ckDispose(rest)
        CkAuthAzureStorage::ckDispose(azAuth)
        ProcedureReturn
    EndIf

    ; Load the XML response for parsing.
    ; A sample XML response containing 2 containers is shown below.
    xml.i = CkXml::ckCreate()
    If xml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkXml::ckLoadXml(xml,responseStr)

    Debug CkXml::ckGetXml(xml)

    ; Iterate over the containers, listing some information about each.
    success = CkXml::ckFindChild2(xml,"Containers")
    numContainers.i = CkXml::ckNumChildren(xml)
    i.i = 0
    While (i < numContainers)
        success = CkXml::ckGetChild2(xml,i)
        Debug "Container Name: " + CkXml::ckGetChildContent(xml,"Name")
        lastModDateStr.s = CkXml::ckChilkatPath(xml,"Properties|Last-Modified|*")
        Debug "Last Modified: " + lastModDateStr
        ; The date/time string can be loaded into a CkDateTime object for conversion to other date formats..
        dateTime.i = CkDateTime::ckCreate()
        If dateTime.i = 0
            Debug "Failed to create object."
            ProcedureReturn
        EndIf

        success = CkDateTime::ckSetFromRfc822(dateTime,lastModDateStr)

        leaseState.s = CkXml::ckChilkatPath(xml,"Properties|LeaseState|*")
        Debug "Lease State: " + leaseState

        success = CkXml::ckGetParent2(xml)
        i = i + 1
    Wend
    success = CkXml::ckGetParent2(xml)

    ; 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>


    CkRest::ckDispose(rest)
    CkAuthAzureStorage::ckDispose(azAuth)
    CkXml::ckDispose(xml)
    CkDateTime::ckDispose(dateTime)


    ProcedureReturn
EndProcedure