Copy an Object Using the AWS SDK for .NET

The following C# code example makes a copy of an object in the same source bucket. The example illustrates the use of the AmazonS3.CopyObject method. For instructions on how to create and test a working sample, see Testing the .NET Code Examples

using System;
using System.Configuration;
using System.Collections.Specialized;

using Amazon.S3;
using Amazon.S3.Model;

namespace s3.amazon.com.docsamples.copyobject
{
    class S3Sample
    {
        static string bucketName = "*** Provide bucket name ***";
        static string keyName = "*** Provide key name ***";
        static string destKeyName = "*** Provide destination key name ***";
        static AmazonS3 client;

        public static void Main(string[] args)
        {
            if (checkRequiredFields())
            {
                NameValueCollection appConfig =
                    ConfigurationManager.AppSettings;

                string accessKeyID = appConfig["AWSAccessKey"];
                string secretAccessKeyID = appConfig["AWSSecretKey"];

                using (client = Amazon.AWSClientFactory.CreateAmazonS3Client(
                    accessKeyID, secretAccessKeyID))
                {
                    Console.WriteLine("Copying an object");
                    CopyingObject();
                }
            }

            Console.WriteLine("Press any key to continue...");
            Console.ReadKey();
        }

        static bool checkRequiredFields()
        {
            NameValueCollection appConfig = ConfigurationManager.AppSettings;

            if (string.IsNullOrEmpty(appConfig["AWSAccessKey"]))
            {
                Console.WriteLine(
                    "AWSAccessKey was not set in the App.config file.");
                return false;
            }
            if (string.IsNullOrEmpty(appConfig["AWSSecretKey"]))
            {
                Console.WriteLine(
                    "AWSSecretKey was not set in the App.config file.");
                return false;
            }
            if (string.IsNullOrEmpty(bucketName))
            {
                Console.WriteLine("The variable bucketName is not set.");
                return false;
            }
            if (string.IsNullOrEmpty(keyName))
            {
                Console.WriteLine("The variable keyName is not set.");
                return false;
            }

            return true;
        }

        static void CopyingObject()
        {
            try
            {
                // simple object put
                CopyObjectRequest request = new CopyObjectRequest();
                request.SourceBucket = bucketName;
                request.SourceKey = keyName;
                request.DestinationBucket = bucketName;
                request.DestinationKey = destKeyName;
                S3Response response = client.CopyObject(request);
                response.Dispose();
            }
            catch (AmazonS3Exception s3Exception)
            {
                Console.WriteLine(s3Exception.Message,
                                  s3Exception.InnerException);
            }
        }
    }
}