ListObjectsTest.cs

// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: MIT-0 (For details, see https://github.com/awsdocs/amazon-s3-developer-guide/blob/master/LICENSE-SAMPLECODE.)

using Amazon.S3;
using Amazon.S3.Model;
using System;
using System.Threading.Tasks;

namespace Amazon.DocSamples.S3
{
    class ListObjectsTest
    {
        private const string bucketName = "*** bucket name ***";
        // Specify your bucket region (an example region is shown).
        private static readonly RegionEndpoint bucketRegion = RegionEndpoint.USWest2;

        private static IAmazonS3 client;

        public static void Main()
        {
            client = new AmazonS3Client(bucketRegion);
            ListingObjectsAsync().Wait();
        }

        static async Task ListingObjectsAsync()
        {
            try
            {
                ListObjectsV2Request request = new ListObjectsV2Request
                {
                    BucketName = bucketName,
                    MaxKeys = 10
                };
                ListObjectsV2Response response;
                do
                {
                    response = await client.ListObjectsV2Async(request);

                    // Process the response.
                    foreach (S3Object entry in response.S3Objects)
                    {
                        Console.WriteLine("key = {0} size = {1}",
                            entry.Key, entry.Size);
                    }
                    Console.WriteLine("Next Continuation Token: {0}", response.NextContinuationToken);
                    request.ContinuationToken = response.NextContinuationToken;
                } while (response.IsTruncated);
            }
            catch (AmazonS3Exception amazonS3Exception)
            {
                Console.WriteLine("S3 error occurred. Exception: " + amazonS3Exception.ToString());
                Console.ReadKey();
            }
            catch (Exception e)
            {
                Console.WriteLine("Exception: " + e.ToString());
                Console.ReadKey();
            }
        }
    }
}