Chilkat Examples

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Swift 3,4,5... Web API Examples

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(Swift 3,4,5...) Backblaze S3 List Bucket Objects

See more Backblaze S3 Examples

Demonstrates how to list the objects in a bucket.

The Chilkat S3 functions in the HTTP class are compatible with the Backblaze service. However, because of some specific issues, Chilkat v9.5.0.89 or later is needed.

Chilkat Downloads for the Swift Programming Language

MAC OS X (Cocoa) Objective-C/Swift Libs

iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example assumes the Chilkat HTTP API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let http = CkoHttp()!

    // keyID = Access Key ID or Access Key
    http.awsAccessKey = "access-key"

    // applicationKey = Secret Access Key or Secret Key
    http.awsSecretKey = "secret-key"

    // Region is the 2nd part of your S3 Endpoint
    http.awsEndpoint = "s3.us-west-002.backblazeb2.com"

    var bucketName: String? = "chilkat-test"

    var strXml: String? = http.s3_ListBucketObjects(bucketName)
    if http.lastMethodSuccess != true {
        print("\(http.lastErrorText!)")
        return
    }

    print("Response status code = \(http.lastStatus.intValue)")

    let xml = CkoXml()!
    var success: Bool = xml.load(strXml)
    if success != true {
        print("\(xml.lastErrorText!)")
        return
    }

    // If the response status code was not 200, then the XML response is not a 
    // listing of objects, but instead contains error information.
    if http.lastStatus.intValue != 200 {
        print("\(xml.getXml()!)")
        print("Failed.")
        return
    }

    // A sample response is shown below.
    print("\(xml.getXml()!)")
    print("----")

    // Use this online tool to generate parsing code from sample XML: 
    // Generate Parsing Code from XML

    // <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
    // <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
    //     <Contents>
    //         <ETag>"303fb46cf341094fef6274b7789cd6aa"</ETag>
    //         <Key>orchard.json</Key>
    //         <LastModified>2021-10-30T14:45:52.000Z</LastModified>
    //         <Owner>
    //             <ID>f2ebbc5f792c</ID>
    //             <DisplayName/>
    //         </Owner>
    //         <Size>22</Size>
    //         <StorageClass>STANDARD</StorageClass>
    //     </Contents>
    //     <Contents>
    //         <ETag>"a8551f0a5437f43a796fca7623ee9232"</ETag>
    //         <Key>seahorse.jpg</Key>
    //         <LastModified>2021-10-30T14:38:53.000Z</LastModified>
    //         <Owner>
    //             <ID>f2ebbc5f792c</ID>
    //             <DisplayName/>
    //         </Owner>
    //         <Size>24388</Size>
    //         <StorageClass>STANDARD</StorageClass>
    //     </Contents>
    //     <IsTruncated>false</IsTruncated>
    //     <MaxKeys>1000</MaxKeys>
    //     <Name>chilkat-test</Name>
    //     <Prefix/>
    //     <Marker/>
    // </ListBucketResult>

    var ETag: String?
    var Key: String?
    var LastModified: String?
    var ID: String?
    var SizeDecimalStr: String?
    var StorageClass: String?

    var ListBucketResult_xmlns: String? = xml.getAttrValue("xmlns")
    var i: Int = 0
    var count_i: Int = xml.numChildrenHavingTag("Contents").intValue
    while i < count_i {
        xml.i = i
        ETag = xml.getChildContent("Contents[i]|ETag")
        Key = xml.getChildContent("Contents[i]|Key")
        LastModified = xml.getChildContent("Contents[i]|LastModified")
        ID = xml.getChildContent("Contents[i]|Owner|ID")
        SizeDecimalStr = xml.getChildContent("Contents[i]|Size")
        StorageClass = xml.getChildContent("Contents[i]|StorageClass")
        i = i + 1
    }

    var IsTruncated: String? = xml.getChildContent("IsTruncated")
    var MaxKeys: Int = xml.getChildIntValue("MaxKeys").intValue
    var Name: String? = xml.getChildContent("Name")

}

 

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