Delphi ActiveX AWS S3: Get S3 Object Tags

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Returns the tags associated with an object. This example gets the tags for the object named "starfish.jpg" located in the bucket "chilkat100".

Documentation: https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectGETtagging.html

CURL Command

curl -X GET https://chilkat100.s3.amazonaws.com/starfish.jpg?tagging

Delphi ActiveX Example

var
rest: TChilkatRest;
success: Integer;
authAws: TChilkatAuthAws;
bTls: Integer;
port: Integer;
bAutoReconnect: Integer;
sbResponseBody: TChilkatStringBuilder;
respStatusCode: Integer;
xmlResponse: TChilkatXml;
Tagging_xmlns: WideString;
i: Integer;
count_i: Integer;
tagPath: WideString;
Key: WideString;
Value: WideString;

begin
rest := TChilkatRest.Create(Self);

authAws := TChilkatAuthAws.Create(Self);
authAws.AccessKey := 'AWS_ACCESS_KEY';
authAws.SecretKey := 'AWS_SECRET_KEY';
authAws.Region := 'us-east-1';
authAws.ServiceName := 's3';
rest.SetAuthAws(authAws.ControlInterface);

//  URL: https://chilkat100.s3.amazonaws.com/starfish.jpg?tagging
bTls := 1;
port := 443;
bAutoReconnect := 1;
success := rest.Connect('chilkat100.s3.amazonaws.com',port,bTls,bAutoReconnect);
if (success <> 1) then
  begin
    Memo1.Lines.Add('ConnectFailReason: ' + IntToStr(rest.ConnectFailReason));
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

sbResponseBody := TChilkatStringBuilder.Create(Self);
success := rest.FullRequestNoBodySb('GET','/starfish.jpg?tagging',sbResponseBody.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;
respStatusCode := rest.ResponseStatusCode;
if (respStatusCode >= 400) then
  begin
    Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(rest.ResponseHeader);
    Memo1.Lines.Add('Response Body:');
    Memo1.Lines.Add(sbResponseBody.GetAsString());
    Exit;
  end;

xmlResponse := TChilkatXml.Create(Self);
xmlResponse.LoadSb(sbResponseBody.ControlInterface,1);

//  See the Online Tool for Generating XML Parse Code

Tagging_xmlns := xmlResponse.GetAttrValue('xmlns');
i := 0;
count_i := xmlResponse.NumChildrenHavingTag('TagSet|Tag');
while i < count_i do
  begin
    xmlResponse.I := i;
    Key := xmlResponse.GetChildContent('TagSet|Tag[i]|Key');
    Value := xmlResponse.GetChildContent('TagSet|Tag[i]|Value');
    i := i + 1;
  end;

Sample XML Response Body

<?xml version="1.0" encoding="UTF-8" ?>
<Tagging xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
    <TagSet>
        <Tag>
            <Key>habitat</Key>
            <Value>ocean</Value>
        </Tag>
        <Tag>
            <Key>phylum</Key>
            <Value>Echinodermata</Value>
        </Tag>
        <Tag>
            <Key>animal</Key>
            <Value>starfish</Value>
        </Tag>
    </TagSet>
</Tagging>