C++ 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

C++ Example

#include <CkRest.h>
#include <CkAuthAws.h>
#include <CkStringBuilder.h>
#include <CkXml.h>

void ChilkatSample(void)
    {
    CkRest rest;
    bool success;

    CkAuthAws authAws;
    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
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    success = rest.Connect("chilkat100.s3.amazonaws.com",port,bTls,bAutoReconnect);
    if (success != true) {
        std::cout << "ConnectFailReason: " << rest.get_ConnectFailReason() << "\r\n";
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    CkStringBuilder sbResponseBody;
    success = rest.FullRequestNoBodySb("GET","/starfish.jpg?tagging",sbResponseBody);
    if (success != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    int respStatusCode = rest.get_ResponseStatusCode();
    if (respStatusCode >= 400) {
        std::cout << "Response Status Code = " << respStatusCode << "\r\n";
        std::cout << "Response Header:" << "\r\n";
        std::cout << rest.responseHeader() << "\r\n";
        std::cout << "Response Body:" << "\r\n";
        std::cout << sbResponseBody.getAsString() << "\r\n";
        return;
    }

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

    //  See the Online Tool for Generating XML Parse Code
    const char *Tagging_xmlns = 0;
    int i;
    int count_i;
    const char *tagPath = 0;
    const char *Key = 0;
    const char *Value = 0;

    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>