Java 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

Java Example

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    CkRest rest = new CkRest();
    boolean success;

    CkAuthAws authAws = new CkAuthAws();
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_SecretKey("AWS_SECRET_KEY");
    authAws.put_Region("us-east-1");
    authAws.put_ServiceName("s3");
    rest.SetAuthAws(authAws);

    //  URL: https://chilkat100.s3.amazonaws.com/starfish.jpg?tagging
    boolean bTls = true;
    int port = 443;
    boolean bAutoReconnect = true;
    success = rest.Connect("chilkat100.s3.amazonaws.com",port,bTls,bAutoReconnect);
    if (success != true) {
        System.out.println("ConnectFailReason: " + rest.get_ConnectFailReason());
        System.out.println(rest.lastErrorText());
        return;
        }

    CkStringBuilder sbResponseBody = new CkStringBuilder();
    success = rest.FullRequestNoBodySb("GET","/starfish.jpg?tagging",sbResponseBody);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    int respStatusCode = rest.get_ResponseStatusCode();
    if (respStatusCode >= 400) {
        System.out.println("Response Status Code = " + respStatusCode);
        System.out.println("Response Header:");
        System.out.println(rest.responseHeader());
        System.out.println("Response Body:");
        System.out.println(sbResponseBody.getAsString());
        return;
        }

    CkXml xmlResponse = new CkXml();
    xmlResponse.LoadSb(sbResponseBody,true);

    //  See the Online Tool for Generating XML Parse Code
    String Tagging_xmlns;
    int i;
    int count_i;
    String tagPath;
    String Key;
    String Value;

    Tagging_xmlns = xmlResponse.getAttrValue("xmlns");
    i = 0;
    count_i = xmlResponse.NumChildrenHavingTag("TagSet|Tag");
    while (i < count_i) {
        xmlResponse.put_I(i);
        Key = xmlResponse.getChildContent("TagSet|Tag[i]|Key");
        Value = xmlResponse.getChildContent("TagSet|Tag[i]|Value");
        i = i+1;
        }
  }
}

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>