Swift

OSS List Bucket Objects (Alibaba Cloud)

See more Alibaba Cloud OSS Examples

Demonstrates how to list the objects in a bucket.

The Chilkat S3 functions in the HTTP class are compatible with Alibaba Cloud's OSS service.

Swift

func chilkatTest() {
    var success: Bool = false

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

    let http = CkoHttp()!

    // Insert your AccessKey ID here:
    http.awsAccessKey = "access-key"

    // Insert your AccessKey Secret here:
    http.awsSecretKey = "secret-key"

    // To list objects in a bucket located in a different region, use the endpoint for that region, such as "oss-cn-hangzhou.aliyuncs.com 	"
    // See Alibaba Object Storage Service Regions and Endpoints
    http.awsEndpoint = "oss-us-east-1.aliyuncs.com"

    var bucketName: String? = "chilkat"

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

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

    let xml = CkoXml()!
    success = xml.load(xmlData: 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"?>
    // <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
    //     <Name>chilkat</Name>
    //     <Prefix/>
    //     <Marker/>
    //     <MaxKeys>1000</MaxKeys>
    //     <IsTruncated>false</IsTruncated>
    //     <Contents>
    //         <Key>orchard.json</Key>
    //         <LastModified>2021-10-29T16:58:12.000Z</LastModified>
    //         <ETag>"303FB46CF341094FEF6274B7789CD6AA"</ETag>
    //         <Size>22</Size>
    //         <StorageClass>STANDARD</StorageClass>
    //         <Owner>
    //             <ID>5035535379748121</ID>
    //             <DisplayName>5035535379748121</DisplayName>
    //         </Owner>
    //     </Contents>
    //     <Contents>
    //         <Key>seahorse.jpg</Key>
    //         <LastModified>2021-10-29T16:52:01.000Z</LastModified>
    //         <ETag>"A8551F0A5437F43A796FCA7623EE9232"</ETag>
    //         <Size>24388</Size>
    //         <StorageClass>STANDARD</StorageClass>
    //         <Owner>
    //             <ID>5035535379748121</ID>
    //             <DisplayName>5035535379748121</DisplayName>
    //         </Owner>
    // 
    //     </Contents>
    // </ListBucketResult>

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

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


}