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 <C_CkRest.h>
#include <C_CkAuthAws.h>
#include <C_CkStringBuilder.h>
#include <C_CkXml.h>

void ChilkatSample(void)
    {
    HCkRest rest;
    BOOL success;
    HCkAuthAws authAws;
    BOOL bTls;
    int port;
    BOOL bAutoReconnect;
    HCkStringBuilder sbResponseBody;
    int respStatusCode;
    HCkXml xmlResponse;
    const char *Tagging_xmlns;
    int i;
    int count_i;
    const char *tagPath;
    const char *Key;
    const char *Value;

    rest = CkRest_Create();

    authAws = CkAuthAws_Create();
    CkAuthAws_putAccessKey(authAws,"AWS_ACCESS_KEY");
    CkAuthAws_putSecretKey(authAws,"AWS_SECRET_KEY");
    CkAuthAws_putRegion(authAws,"us-east-1");
    CkAuthAws_putServiceName(authAws,"s3");
    CkRest_SetAuthAws(rest,authAws);

    //  URL: https://chilkat100.s3.amazonaws.com/starfish.jpg?tagging
    bTls = TRUE;
    port = 443;
    bAutoReconnect = TRUE;
    success = CkRest_Connect(rest,"chilkat100.s3.amazonaws.com",port,bTls,bAutoReconnect);
    if (success != TRUE) {
        printf("ConnectFailReason: %d\n",CkRest_getConnectFailReason(rest));
        printf("%s\n",CkRest_lastErrorText(rest));
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        return;
    }

    sbResponseBody = CkStringBuilder_Create();
    success = CkRest_FullRequestNoBodySb(rest,"GET","/starfish.jpg?tagging",sbResponseBody);
    if (success != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        CkStringBuilder_Dispose(sbResponseBody);
        return;
    }

    respStatusCode = CkRest_getResponseStatusCode(rest);
    if (respStatusCode >= 400) {
        printf("Response Status Code = %d\n",respStatusCode);
        printf("Response Header:\n");
        printf("%s\n",CkRest_responseHeader(rest));
        printf("Response Body:\n");
        printf("%s\n",CkStringBuilder_getAsString(sbResponseBody));
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        CkStringBuilder_Dispose(sbResponseBody);
        return;
    }

    xmlResponse = CkXml_Create();
    CkXml_LoadSb(xmlResponse,sbResponseBody,TRUE);

    //  See the Online Tool for Generating XML Parse Code

    Tagging_xmlns = CkXml_getAttrValue(xmlResponse,"xmlns");
    i = 0;
    count_i = CkXml_NumChildrenHavingTag(xmlResponse,"TagSet|Tag");
    while (i < count_i) {
        CkXml_putI(xmlResponse,i);
        Key = CkXml_getChildContent(xmlResponse,"TagSet|Tag[i]|Key");
        Value = CkXml_getChildContent(xmlResponse,"TagSet|Tag[i]|Value");
        i = i + 1;
    }



    CkRest_Dispose(rest);
    CkAuthAws_Dispose(authAws);
    CkStringBuilder_Dispose(sbResponseBody);
    CkXml_Dispose(xmlResponse);

    }

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>