(Swift 2) Azure Storage: List Blobs

Azure Storage Blob Service REST API: Sample code to fetch the list of blobs in the specified container.

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func chilkatTest() {
    // 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.

    let rest = CkoRest()

    // Connect to the Azure Storage Blob Service
    var bTls: Bool = true
    var port: Int = 443
    var bAutoReconnect: Bool = true
    // In this example, the storage account name is "chilkat".
    var success: Bool = rest.Connect("chilkat.blob.core.windows.net", port: port, tls: bTls, autoReconnect: bAutoReconnect)
    if success != true {
        print("\(rest.LastErrorText)")
        return
    }

    // Provide Azure Cloud credentials for the REST call.
    let azAuth = CkoAuthAzureStorage()
    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.

    // 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".
    var responseStr: String? = rest.FullRequestNoBody("GET", uriPath: "/mycontainer?restype=container&comp=list")
    if rest.LastMethodSuccess != true {
        print("\(rest.LastErrorText)")
        return
    }

    // When successful, the Azure Storage service will respond with a 200 response status code,
    // with an XML response body.

    if rest.ResponseStatusCode.intValue != 200 {
        // Examine the request/response to see what happened.
        print("response status code = \(rest.ResponseStatusCode.intValue)")
        print("response status text = \(rest.ResponseStatusText)")
        print("response header: \(rest.ResponseHeader)")
        print("response body (if any): \(responseStr!)")
        print("---")
        print("LastRequestStartLine: \(rest.LastRequestStartLine)")
        print("LastRequestHeader: \(rest.LastRequestHeader)")
        return
    }

    // Load the XML response for parsing.
    // An example of the response XML is shown below.
    let xml = CkoXml()
    success = xml.LoadXml(responseStr)

    print("\(xml.GetXml())")

    // Let's iterate over the blobs...

    let lastMod = CkoDateTime()

    var numBlobs: Int = xml.NumChildrenAt("Blobs").intValue
    var i: Int = 0
    while i < numBlobs {
        print("---- Blob \(i) ----")
        xml.I = i
        print("Name: \(xml.GetChildContent("Blobs|Blob[i]|Name"))")
        print("Content-Length: \(xml.GetChildContent("Blobs|Blob[i]|Properties|Content-Length"))")
        print("Content-Type: \(xml.GetChildContent("Blobs|Blob[i]|Properties|Content-Type"))")
        print("Content-MD5: \(xml.GetChildContent("Blobs|Blob[i]|Properties|Content-MD5"))")
        print("BlobType: \(xml.GetChildContent("Blobs|Blob[i]|Properties|BlobType"))")
        print("LeaseStatus: \(xml.GetChildContent("Blobs|Blob[i]|Properties|LeaseStatus"))")
        lastMod.SetFromRfc822(xml.GetChildContent("Blobs|Blob[i]|Properties|Last-Modified"))
        var dt: CkoDtObj? = lastMod.GetDtObj(true)
        print("Last-Modified YMD: \(dt!.Year.intValue),\(dt!.Month.intValue),\(dt!.Day.intValue)")
        dt = nil
        i = i + 1
    }

    print("-------------------------")

    // 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"
    var lastModStr: String? = xml.ChilkatPath("/C/Name,helloWorld.txt|..|Properties|Last-Modified|*")
    print("helloWorld.txt Last-Modified: \(lastModStr!)")

    print("Success.")

    // <?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>
    // 

}