Swift 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"

Swift Example

func chilkatTest() {
    let rest = CkoRest()
    var success: Bool

    let authAws = CkoAuthAws()
    authAws.AccessKey = "AWS_ACCESS_KEY"
    authAws.SecretKey = "AWS_SECRET_KEY"
    authAws.Region = "us-west-2"
    authAws.ServiceName = "s3"
    rest.SetAuthAws(authAws)

    //  URL: https://chilkat.ocean.s3.us-west-2.amazonaws.com/starfishCopy.jpg
    var bTls: Bool = true
    var port: Int = 443
    var bAutoReconnect: Bool = true
    success = rest.Connect("chilkat.ocean.s3.us-west-2.amazonaws.com", port: port, tls: bTls, autoReconnect: bAutoReconnect)
    if success != true {
        print("ConnectFailReason: \(rest.ConnectFailReason.intValue)")
        print("\(rest.LastErrorText)")
        return
    }

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

    let sbResponseBody = CkoStringBuilder()
    success = rest.FullRequestNoBodySb("PUT", uriPath: "/starfishCopy.jpg", sb: sbResponseBody)
    if success != true {
        print("\(rest.LastErrorText)")
        return
    }

    var respStatusCode: Int = rest.ResponseStatusCode.intValue
    if respStatusCode >= 400 {
        print("Response Status Code = \(respStatusCode)")
        print("Response Header:")
        print("\(rest.ResponseHeader)")
        print("Response Body:")
        print("\(sbResponseBody.GetAsString())")
        return
    }

    let xmlResponse = CkoXml()
    xmlResponse.LoadSb(sbResponseBody, autoTrim: true)

    //  See the Online Tool for Generating XML Parse Code
    var CopyObjectResult_xmlns: String?
    var tagPath: String?
    var LastModified: String?
    var ETag: String?

    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>