(VBScript) 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 ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Http")
set http = CreateObject("Chilkat.Http")

' 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"

bucketName = "chilkat-test"

strXml = http.S3_ListBucketObjects(bucketName)
If (http.LastMethodSuccess <> 1) Then
    outFile.WriteLine(http.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine("Response status code = " & http.LastStatus)

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Xml")
set xml = CreateObject("Chilkat.Xml")
success = xml.LoadXml(strXml)
If (success <> 1) Then
    outFile.WriteLine(xml.LastErrorText)
    WScript.Quit
End If

' 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 <> 200) Then
    outFile.WriteLine(xml.GetXml())
    outFile.WriteLine("Failed.")
    WScript.Quit
End If

' A sample response is shown below.
outFile.WriteLine(xml.GetXml())
outFile.WriteLine("----")

' 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>

ListBucketResult_xmlns = xml.GetAttrValue("xmlns")
i = 0
count_i = xml.NumChildrenHavingTag("Contents")
Do 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
Loop
IsTruncated = xml.GetChildContent("IsTruncated")
MaxKeys = xml.GetChildIntValue("MaxKeys")
Name = xml.GetChildContent("Name")

outFile.Close