public async Task <IEnumerable <S3FileKey> > GetAllKeysAsync(S3FolderKey filter)
{
if (filter == null)
{
throw new ArgumentNullException(nameof(filter));
}
var result = new List <S3FileKey>();
var request = CreateRequest(filter);
ListObjectsV2Response response;
do
{
response = await AmazonS3.ListObjectsV2Async(request);
var keys = ProcessResponse(response, filter);
result.AddRange(keys);
request.ContinuationToken = response.NextContinuationToken;
} while (response.IsTruncated);
return(result);
}