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(VB.NET UWP/WinRT) S3 List Objects in Bucket

Demonstrates how to retrieve the XML listing of the objects (i.e. files) stored in an Amazon S3 bucket. (This is like a directory listing.)

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

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

Dim http As New Chilkat.Http

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

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

Dim strXml As String = Await http.S3_ListBucketObjectsAsync("chilkat100")
If (http.LastMethodSuccess <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


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

Dim xml As New Chilkat.Xml
Dim success As Boolean = xml.LoadXml(strXml)
If (success <> True) Then
    Debug.WriteLine(xml.LastErrorText)
    Exit Sub
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
    Debug.WriteLine(xml.GetXml())
    Debug.WriteLine("Failed.")
    Exit Sub
End If


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

' Iterate over the bucket items and get information for each..
Dim numItems As Integer = xml.NumChildrenHavingTag("Contents")
Debug.WriteLine("Number of bucket items = " & numItems)

Dim itemKey As String
Dim itemSize As Integer
Dim lastModTimestamp As String
Dim dt As New Chilkat.CkDateTime

Dim i As Integer = 0
While i < numItems
    xml.I = i

    itemKey = xml.GetChildContent("Contents[i]|Key")
    itemSize = xml.GetChildIntValue("Contents[i]|Size")
    lastModTimestamp = xml.GetChildContent("Contents[i]|LastModified")

    dt.SetFromRfc822(lastModTimestamp)
    ' Get a local date/time.
    Dim bLocal As Boolean = True
    Dim dtObj As Chilkat.DtObj = dt.GetDtObj(bLocal)

    Debug.WriteLine(i & ": " & itemKey & ", " & itemSize & ", " & dtObj.Day & "-" & dtObj.Month & "-" & dtObj.Year _
         & ":" & dtObj.Hour & ":" & dtObj.Minute)


    i = i + 1
End While

' Sample output from the above loop:

' 0: Abc.ics, 1833, 25-5-2011:9:53
' 1: Corpse Bride film poster.jpg, 53481, 6-9-2016:13:32
' 2: chiliPepper.gif, 7718, 12-3-2017:12:18
' 3: chilkatdude.jpg, 35137, 20-5-2011:16:14
' 4: cloud.search/dfe/indexer/pscc/2016/3/28/id,x-2-15-0-25-87-0.json, 1238, 2-4-2016:12:0
' 5: cloud.search/dfe/indexer/pscc/2016/3/28/idx-2-15-0-25-87-0.json, 1238, 2-4-2016:11:33
' 6: dude.gif, 6373, 25-5-2011:17:29
' 7: french.txt, 47, 12-3-2017:12:18
' 8: hamlet.xml, 279658, 2-5-2016:12:21
' 9: hamlet_play.xml, 279658, 20-3-2017:8:22
' 10: images/sea_creatures/starfish123.jpg, 6229, 19-1-2017:10:45
' 11: images/sea_creatures/starfishåäö.jpg, 6229, 19-1-2017:12:7
' 12: new folder/, 0, 26-11-2014:12:36
' 13: new_starfish.jpg, 6229, 20-3-2017:8:22
' 14: pigs.xml, 2804, 20-3-2017:8:22
' 15: somethingBig.zip, 13089458, 26-9-2016:9:29
' 16: starfish.jpg, 6229, 12-3-2017:12:18
' 17: starfish/, 0, 10-11-2014:10:7
' 18: starfish/starfish.jpg, 6229, 10-11-2014:10:8
' 19: starfish/starfish2.jpg, 6229, 19-11-2014:10:36
' 20: starfish/starfish3.jpg, 6229, 24-11-2014:14:33
' 21: starfish2.jpg, 5987, 20-4-2012:12:6
' 22: starfish3.jpg, 5987, 11-4-2012:7:10
' 23: starfishA.jpg, 6229, 10-5-2016:8:44
' 24: starfishCust.jpg, 6229, 12-11-2014:18:25
' 25: xyz.ics, 1833, 25-5-2011:8:52



' <?xml version="1.0" encoding="UTF-8" ?>
' <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
'     <Name>chilkat100</Name>
'     <Prefix />
'     <Marker />
'     <MaxKeys>1000</MaxKeys>
'     <IsTruncated>false</IsTruncated>
'     <Contents>
'         <Key>Abc.ics</Key>
'         <LastModified>2011-05-25T14:53:27.000Z</LastModified>
'         <ETag>"12ed2e28ff4abd4faead06b491836e64"</ETag>
'         <Size>1833</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>Corpse Bride film poster.jpg</Key>
'         <LastModified>2016-09-06T18:32:05.000Z</LastModified>
'         <ETag>"5a63ba56f0641244e4988dd171b8c5ae"</ETag>
'         <Size>53481</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>chiliPepper.gif</Key>
'         <LastModified>2017-03-12T17:18:16.000Z</LastModified>
'         <ETag>"8ee9b257fa70f69400d596977809da94"</ETag>
'         <Size>7718</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>chilkatdude.jpg</Key>
'         <LastModified>2011-05-20T21:14:44.000Z</LastModified>
'         <ETag>"6f7555035d080421e09e932daf19c79d"</ETag>
'         <Size>35137</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>cloud.search/dfe/indexer/pscc/2016/3/28/id,x-2-15-0-25-87-0.json</Key>
'         <LastModified>2016-04-02T17:00:10.000Z</LastModified>
'         <ETag>"518d70f41c9df4f85762ecde8a34cdea"</ETag>
'         <Size>1238</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>cloud.search/dfe/indexer/pscc/2016/3/28/idx-2-15-0-25-87-0.json</Key>
'         <LastModified>2016-04-02T16:33:36.000Z</LastModified>
'         <ETag>"518d70f41c9df4f85762ecde8a34cdea"</ETag>
'         <Size>1238</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>dude.gif</Key>
'         <LastModified>2011-05-25T22:29:31.000Z</LastModified>
'         <ETag>"208b908388905d442e81ded00a55541b"</ETag>
'         <Size>6373</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>french.txt</Key>
'         <LastModified>2017-03-12T17:18:16.000Z</LastModified>
'         <ETag>"54468302e7cda1c1dfe45748d430035a"</ETag>
'         <Size>47</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>hamlet.xml</Key>
'         <LastModified>2016-05-02T17:21:27.000Z</LastModified>
'         <ETag>"e04ea9ac8f616b0f35c5a7522de123dd"</ETag>
'         <Size>279658</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>hamlet_play.xml</Key>
'         <LastModified>2017-03-20T13:22:40.000Z</LastModified>
'         <ETag>"e04ea9ac8f616b0f35c5a7522de123dd"</ETag>
'         <Size>279658</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>images/sea_creatures/starfish123.jpg</Key>
'         <LastModified>2017-01-19T16:45:52.000Z</LastModified>
'         <ETag>"2e9c59dbf2662367dc97dfdda85da048"</ETag>
'         <Size>6229</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>images/sea_creatures/starfishåäö.jpg</Key>
'         <LastModified>2017-01-19T18:07:11.000Z</LastModified>
'         <ETag>"2e9c59dbf2662367dc97dfdda85da048"</ETag>
'         <Size>6229</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>new folder/</Key>
'         <LastModified>2014-11-26T18:36:22.000Z</LastModified>
'         <ETag>"d41d8cd98f00b204e9800998ecf8427e"</ETag>
'         <Size>0</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>new_starfish.jpg</Key>
'         <LastModified>2017-03-20T13:22:57.000Z</LastModified>
'         <ETag>"2e9c59dbf2662367dc97dfdda85da048"</ETag>
'         <Size>6229</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>pigs.xml</Key>
'         <LastModified>2017-03-20T13:22:58.000Z</LastModified>
'         <ETag>"8252a4499a0df9afbc5d8f3d9995d816"</ETag>
'         <Size>2804</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>somethingBig.zip</Key>
'         <LastModified>2016-09-26T14:29:36.000Z</LastModified>
'         <ETag>"109aa5c86378979c7b93752163c7a51f-3"</ETag>
'         <Size>13089458</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>starfish.jpg</Key>
'         <LastModified>2017-03-12T17:18:16.000Z</LastModified>
'         <ETag>"2e9c59dbf2662367dc97dfdda85da048"</ETag>
'         <Size>6229</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>starfish/</Key>
'         <LastModified>2014-11-10T16:07:45.000Z</LastModified>
'         <ETag>"d41d8cd98f00b204e9800998ecf8427e"</ETag>
'         <Size>0</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>starfish/starfish.jpg</Key>
'         <LastModified>2014-11-10T16:08:05.000Z</LastModified>
'         <ETag>"2e9c59dbf2662367dc97dfdda85da048"</ETag>
'         <Size>6229</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>starfish/starfish2.jpg</Key>
'         <LastModified>2014-11-19T16:36:38.000Z</LastModified>
'         <ETag>"2e9c59dbf2662367dc97dfdda85da048"</ETag>
'         <Size>6229</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>starfish/starfish3.jpg</Key>
'         <LastModified>2014-11-24T20:33:11.000Z</LastModified>
'         <ETag>"2e9c59dbf2662367dc97dfdda85da048"</ETag>
'         <Size>6229</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>starfish2.jpg</Key>
'         <LastModified>2012-04-20T17:06:45.000Z</LastModified>
'         <ETag>"525887bb7ff22c9b7f5446cb9748d59e"</ETag>
'         <Size>5987</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>starfish3.jpg</Key>
'         <LastModified>2012-04-11T12:10:40.000Z</LastModified>
'         <ETag>"525887bb7ff22c9b7f5446cb9748d59e"</ETag>
'         <Size>5987</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>starfishA.jpg</Key>
'         <LastModified>2016-05-10T13:44:15.000Z</LastModified>
'         <ETag>"2e9c59dbf2662367dc97dfdda85da048"</ETag>
'         <Size>6229</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>starfishCust.jpg</Key>
'         <LastModified>2014-11-13T00:25:17.000Z</LastModified>
'         <ETag>"2e9c59dbf2662367dc97dfdda85da048"</ETag>
'         <Size>6229</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
'     <Contents>
'         <Key>xyz.ics</Key>
'         <LastModified>2011-05-25T13:52:51.000Z</LastModified>
'         <ETag>"12ed2e28ff4abd4faead06b491836e64"</ETag>
'         <Size>1833</Size>
'         <Owner>
'             <ID>cf311e0b13e11b646949b7107f11b2bfbc5358f90df39395054ec40000695168</ID>
'             <DisplayName>johnson</DisplayName>
'         </Owner>
'         <StorageClass>STANDARD</StorageClass>
'     </Contents>
' </ListBucketResult>
 

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