(Lianja) 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.

Chilkat Lianja Extension Download Chilkat Lianja Extension

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

loHttp = createobject("CkHttp")

// Insert your AccessKey ID here:
loHttp.AwsAccessKey = "access-key"

// Insert your AccessKey Secret here:
loHttp.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
loHttp.AwsEndpoint = "oss-us-east-1.aliyuncs.com"

lcBucketName = "chilkat"

lcStrXml = loHttp.S3_ListBucketObjects(lcBucketName)
if (loHttp.LastMethodSuccess <> .T.) then
    ? loHttp.LastErrorText
    release loHttp
    return
endif

? "Response status code = " + str(loHttp.LastStatus)

loXml = createobject("CkXml")
llSuccess = loXml.LoadXml(lcStrXml)
if (llSuccess <> .T.) then
    ? loXml.LastErrorText
    release loHttp
    release loXml
    return
endif

// If the response status code was not 200, then the XML response is not a 
// listing of objects, but instead contains error information.
if (loHttp.LastStatus <> 200) then
    ? loXml.GetXml()
    ? "Failed."
    release loHttp
    release loXml
    return
endif

// A sample response is shown below.
? loXml.GetXml()
? "----"

// 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>

lcListBucketResult_xmlns = loXml.GetAttrValue("xmlns")
lcName = loXml.GetChildContent("Name")
lnMaxKeys = loXml.GetChildIntValue("MaxKeys")
lcIsTruncated = loXml.GetChildContent("IsTruncated")
i = 0
lnCount_i = loXml.NumChildrenHavingTag("Contents")
do while i < lnCount_i
    loXml.I = i
    lcKey = loXml.GetChildContent("Contents[i]|Key")
    lcLastModified = loXml.GetChildContent("Contents[i]|LastModified")
    lcETag = loXml.GetChildContent("Contents[i]|ETag")
    lcSizeDecimalStr = loXml.GetChildContent("Contents[i]|Size")
    lcStorageClass = loXml.GetChildContent("Contents[i]|StorageClass")
    lcID = loXml.GetChildContent("Contents[i]|Owner|ID")
    lcDisplayName = loXml.GetChildContent("Contents[i]|Owner|DisplayName")
    i = i + 1
enddo


release loHttp
release loXml