Oss.OssClient.GetBucketAcl C# (CSharp) Method

        public async Task<AccessControlList> GetBucketAcl(string bucketName)
        {
            AccessControlList result  = null;
            OssHttpRequestMessage httpRequestMessage = null;
            HttpResponseMessage response = null;
            try
            {
                Dictionary<string, string> parameters = new Dictionary<string, string>();
                parameters.Add("acl", null);
                 httpRequestMessage = new OssHttpRequestMessage(bucketName, null, parameters);

                httpRequestMessage.Method = HttpMethod.Get;
                httpRequestMessage.Headers.Date = DateTime.UtcNow;

                OssRequestSigner.Sign(httpRequestMessage, networkCredential);
                 response = await httpClient.SendAsync(httpRequestMessage);

                if (response.IsSuccessStatusCode == false)
                {
                    await ErrorResponseHandler.Handle(response);
                }
                var temp = DeserializerFactory.GetFactory().CreateGetAclResultDeserializer();
                result = await temp.Deserialize(response);
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (httpRequestMessage != null)
                    httpRequestMessage.Dispose();

                if (response != null)
                    response.Dispose();
            }
            return result;


        }

 static async void getBuketAcl()
 {
     try
     {
         OssClient         temp = new OssClient("bm9crcnr0rtnuw8bnrfvq7w8", "RbtJoExTnA8vYLynUfDh7Ior+oM=");
         AccessControlList test = await temp.GetBucketAcl("mydoc5");
     }
     catch (AggregateException ex)
     {
         Console.WriteLine(ex.Message);
     }
 }