Unicode C++ AWS S3: Copy S3 File to a Different Bucket

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Demonstrates how to copy an S3 file from one bucket to another. The file can also be renamed if desired. (The file already exists in S3 in one bucket, and is copied without downloading/uploading to another S3 bucket.) This example copies from /chilkat.qa/starfish.jpg to /chilkat.ocean/starfishCopy.jpg

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

CURL Command

curl -X PUT https://chilkat.ocean.s3.us-west-2.amazonaws.com/starfishCopy.jpg \
    -H "x-amz-copy-source: /chilkat.qa/starfish.jpg"

Unicode C++ Example

#include <CkRestW.h>
#include <CkAuthAwsW.h>
#include <CkStringBuilderW.h>
#include <CkXmlW.h>

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

    CkAuthAwsW authAws;
    authAws.put_AccessKey(L"AWS_ACCESS_KEY");
    authAws.put_SecretKey(L"AWS_SECRET_KEY");
    authAws.put_Region(L"us-west-2");
    authAws.put_ServiceName(L"s3");
    rest.SetAuthAws(authAws);

    //  URL: https://chilkat.ocean.s3.us-west-2.amazonaws.com/starfishCopy.jpg
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    success = rest.Connect(L"chilkat.ocean.s3.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);
    if (success != true) {
        wprintf(L"ConnectFailReason: %d\n",rest.get_ConnectFailReason());
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

    rest.AddHeader(L"x-amz-copy-source",L"/chilkat.qa/starfish.jpg");

    CkStringBuilderW sbResponseBody;
    success = rest.FullRequestNoBodySb(L"PUT",L"/starfishCopy.jpg",sbResponseBody);
    if (success != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

    int respStatusCode = rest.get_ResponseStatusCode();
    if (respStatusCode >= 400) {
        wprintf(L"Response Status Code = %d\n",respStatusCode);
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",rest.responseHeader());
        wprintf(L"Response Body:\n");
        wprintf(L"%s\n",sbResponseBody.getAsString());
        return;
    }

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

    //  See the Online Tool for Generating XML Parse Code
    const wchar_t *CopyObjectResult_xmlns = 0;
    const wchar_t *tagPath = 0;
    const wchar_t *LastModified = 0;
    const wchar_t *ETag = 0;

    CopyObjectResult_xmlns = xmlResponse.getAttrValue(L"xmlns");
    LastModified = xmlResponse.getChildContent(L"LastModified");
    ETag = xmlResponse.getChildContent(L"ETag");
    }

Sample XML Response Body

<?xml version="1.0" encoding="UTF-8"?>
<CopyObjectResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
    <LastModified>2018-12-18T15:53:32.000Z</LastModified>
    <ETag>"2e9c59dbf2662367dc97dfdda85da048"</ETag>
</CopyObjectResult>