POST /publicbucket/mymultiloader_1?uploadId=2~3Y81uRI7FdyjpBLwnWlT_twccOWO5BB HTTP/1.1
Host:  [region].telnyxcloudstorage.com
Content-Type: application/xml
X-Amz-Content-Sha256: beaead3198f7da1e70d03ab969765e0821b24fc913697e929e726aeaebf0eba3
X-Amz-Date: 20230927T162813Z
Authorization: AWS4-HMAC-SHA256 Credential=YOUR_TELNYX_API_KEY/20230927/test/execute-api/aws4_request, SignedHeaders=content-length;content-type;host;x-amz-content-sha256;x-amz-date, Signature=b2cdd3c55ecfddc4f9f8773984b8ce2754672f8c3740fcc65feadae8d8905b94
Content-Length: 348

<CompleteMultipartUpload xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
    <Part>
        <PartNumber>1</PartNumber>
        <ETag>&quot;df38b7a75236d2b16ce24c6f770b2615&quot;</ETag>
    </Part>
    <Part>
        <PartNumber>2</PartNumber>
        <ETag>&quot;df38b7a75236d2b16ce24c6f770b2615&quot;</ETag>
    </Part>
</CompleteMultipartUpload>

<?xml version="1.0" encoding="UTF-8"?>
<CompleteMultipartUploadResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
    <Location>[region].telnyxcloudstorage.com/publicbucket/mymultiloader_1</Location>
    <Bucket>publicbucket</Bucket>
    <Key>mymultiloader_1</Key>
    <ETag></ETag>
</CompleteMultipartUploadResult>