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"

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-west-2");
    authAws.put_ServiceName("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("chilkat.ocean.s3.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);
    if (success != true) {
        std::cout << "ConnectFailReason: " << rest.get_ConnectFailReason() << "\r\n";
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

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

    CkStringBuilder sbResponseBody;
    success = rest.FullRequestNoBodySb("PUT","/starfishCopy.jpg",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 *CopyObjectResult_xmlns = 0;
    const char *tagPath = 0;
    const char *LastModified = 0;
    const char *ETag = 0;

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