进行一些图形调用后返回成功/错误响应

我有以下代码将用户添加到AAD组:

        public async Task AddUsersToGroup(IEnumerable<BatchRequestContent> batches)
        {            
            try
            {
                foreach (var batchRequestContent in batches)
                {
                    var response = await _graphServiceClient
                        .Batch
                        .Request()
                        .WithMaxRetry(10)
                        .PostAsync(batchRequestContent);

                    var responses = await response.GetResponsesAsync();

                    foreach (string key in responses.Keys)
                    {
                        var httpResponse = await response.GetResponseByIdAsync(key);
                        httpResponse.EnsureSuccessStatusCode();                       
                    }                    
                }
            }
            catch (Exception ex)
            {
                await _log.LogMessageAsync(new LogMessage
                {
                    Message = ex.GetBaseException().ToString(),
                    RunId = RunId
                });

                throw;
            }
        }

如果所有请求都返回了成功响应,我需要更新此方法以返回“Ok”,否则如果任何请求返回了错误响应,则返回“Error”。我该怎么做?请帮忙!

        private IEnumerable<BatchRequestContent> GetBatchRequest(IEnumerable<AzureADUser> users, AzureADGroup targetGroup)
        {
            var batches = new List<BatchRequestContent>();
            int maxNoBatchItems = 20;

            var batchRequestContent = new BatchRequestContent();
            int requestId = 1;

            foreach (var user in users)
            {
                JObject body = new JObject
                {
                    ["members@odata.bind"] = $"https://graph.microsoft.com/v1.0/users/{user.ObjectId}"
                };

                var httpRequestMessage = new HttpRequestMessage(HttpMethod.Patch, $"https://graph.microsoft.com/v1.0/groups/{targetGroup.ObjectId}");
                httpRequestMessage.Content = new StringContent(body.ToString(), Encoding.UTF8, "application/json");

                batchRequestContent.AddBatchRequestStep(new BatchRequestStep(requestId.ToString(), httpRequestMessage));

                if (batchRequestContent.BatchRequestSteps.Count() % maxNoBatchItems == 0)
                {
                    batches.Add(batchRequestContent);
                    batchRequestContent = new BatchRequestContent();
                }

                requestId++;
            }

            if (batchRequestContent.BatchRequestSteps.Count < maxNoBatchItems)
            {
                batches.Add(batchRequestContent);
            }

            return batches;
        }