(Classic ASP) S3 Get Bucket Objects with CommonPrefixes

Demonstrates how to get a list of bucket objects using the prefix and delimiter query params to get an XML result with CommonPrefixes.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
' 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 = Server.CreateObject("Chilkat.Http")

' Insert your access key here:
http.AwsAccessKey = "AWS_ACCESS_KEY"

' Insert your secret key here:
http.AwsSecretKey = "AWS_SECRET_KEY"

' In this example, my bucket is "chilkat100".
' It contains a number of folders, one of which is named "images".
' I want to get a list of all sub-folders under the "images" folder
strXml = http.S3_ListBucketObjects("chilkat100?prefix=images/&delimiter=/")
If (http.LastMethodSuccess <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Response status code = " & http.LastStatus) & "</pre>"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Xml")
set xml = Server.CreateObject("Chilkat.Xml")
success = xml.LoadXml(strXml)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( xml.LastErrorText) & "</pre>"
    Response.End
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
    Response.Write "<pre>" & Server.HTMLEncode( xml.GetXml()) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "Failed.") & "</pre>"
    Response.End
End If

' A sample response is shown below.
Response.Write "<pre>" & Server.HTMLEncode( xml.GetXml()) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "----") & "</pre>"

' Here is the list of sub-folders (i.e. CommonPrefixes)

' <?xml version="1.0" encoding="UTF-8"?>
' <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
'     <Name>chilkat100</Name>
'     <Prefix>images/</Prefix>
'     <Marker/>
'     <MaxKeys>1000</MaxKeys>
'     <Delimiter>/</Delimiter>
'     <IsTruncated>false</IsTruncated>
'     <CommonPrefixes>
'         <Prefix>images/africa/</Prefix>
'     </CommonPrefixes>
'     <CommonPrefixes>
'         <Prefix>images/sea_creatures/</Prefix>
'     </CommonPrefixes>
' </ListBucketResult>

' The XML can be parsed like this:
i = 0
count_i = xml.NumChildrenHavingTag("CommonPrefixes")
Do While i < count_i
    xml.I = i
    Prefix = xml.GetChildContent("CommonPrefixes[i]|Prefix")
    Response.Write "<pre>" & Server.HTMLEncode( "Prefix = " & Prefix) & "</pre>"
    i = i + 1
Loop

%>
</body>
</html>