AWS S3 Upload file

using Amazon.S3;
using Amazon.S3.Transfer;
using System;
using System.IO;
using System.Threading.Tasks;

namespace Amazon.DocSamples.S3
{

    public class UploadFileMPUHighLevelAPITest
    {
        private const string bucketName = "your_bucket";
        private const string filePath = @"D:\mydata\s3_upload_text.txt";

        public void ExecS3()
        {
            try
            {
                AmazonS3Client lamcs3 = new AmazonS3Client("key", "secret_key",RegionEndpoint.SAEast1);
                var fileTrasnferUtility = new TransferUtility(lamcs3);
                TransferUtilityUploadRequest ltup = new TransferUtilityUploadRequest();

             
                ltup.FilePath = filePath;
                ltup.BucketName = "your bucket";
             
                //prod/teste.txt is direcotry and the name of the file I want s3_upload_text.txt to be stored.
                fileTrasnferUtility.Upload(filePath, "your bucket","prod/teste.txt");
            }
            catch(Exception ex)
            {
                Console.Write(ex.Message);
            }


        }

    }
}