Question

我已经使用.net中的aws工具包从lambda函数中的aws sqs提取消息，但是消息没有出现。在这些代码中，sqs控制台在cloudwatch上也变为空，同样的receiveMessageResponse也变为空。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

using Amazon;
using Amazon.Lambda.Core;
using Amazon.SQS;
using Amazon.SQS.Model;


 [assembly: 
LambdaSerializer(typeof(Amazon.Lambda.Serialization.Json.JsonSerializer))]

    namespace AWSLambda1
     {
     public class Function
     {

    /// <summary>
    /// A simple function that takes a string and does a ToUpper
    /// </summary>
    /// <param name="input"></param>
    /// <param name="context"></param>
    /// <returns></returns>
    public string FunctionHandler(string input, ILambdaContext context)
    {
        var sqs = new AmazonSQSClient();
        System.Console.Write("sqs", sqs);
        var queueUrl = "myqueueUrl";
        var receiveMessageRequest = new ReceiveMessageRequest{ QueueUrl = queueUrl};
        var receiveMessageResponse = sqs.ReceiveMessageAsync(receiveMessageRequest);
        System.Console.Write("M", receiveMessageResponse);
            return "true";

    }
}

}

Answer 1

这是我用来读取队列的代码段，尝试使用它并查看其是否有效

static async Task<string> Start()
        {
            string AccessKey = "";
            string SecretKey = "";
            string SQSqueues = "https://sqs.";

            RegionEndpoint Region = RegionEndpoint.

            bool processedSQS = false;
            AWSCredentials credentials = new BasicAWSCredentials(AccessKey, SecretKey);
            var AwsRegion = Region;
            var SQSClient = new AmazonSQSClient(credentials, Region);

            var SQSRequest = new ReceiveMessageRequest
            {
                MessageAttributeNames = AttributesList,
                AttributeNames = new List<string>() { "All" },
                MaxNumberOfMessages = 10,
                QueueUrl = SQSqueues,
                VisibilityTimeout = (int)TimeSpan.FromMinutes(10).TotalSeconds,
                WaitTimeSeconds = (int)TimeSpan.FromSeconds(5).TotalSeconds
            };
            var SQSResponse = SQSClient.ReceiveMessageAsync(SQSRequest);
            SQSResponse.Wait();
            string JsonPass = null;

            if (SQSResponse.Result.Messages.Count > 0)
            {
                foreach (var Message in SQSResponse.Result.Messages)
                {
                    string SqsMessage = Message.Body;
                    bool CallUpload = await Insert.GetConfig(SqsMessage, credentials, AwsRegion, tableName);

                    if (CallUpload == true)
                    {
                        var deleteRequest = new DeleteMessageRequest
                        {
                            QueueUrl = SQSqueues,
                            ReceiptHandle = Message.ReceiptHandle
                        };
                        var deleteResponse = SQSClient.DeleteMessageAsync(deleteRequest);
                        deleteResponse.Wait();
                    }
                }

            }
            return "";
        }

Answer 2

您可以使用这两个代码段从 FIFO SQS 中推送和拉取数据

推送数据 -

        IAmazonSQS sqs = new AmazonSQSClient(RegionEndpoint.APSoutheast1);

        var sqsRequest = new CreateQueueRequest
        {
            QueueName = "SQSChatFIFOQueue.fifo"
        };
        sqsRequest.Attributes.Add("FifoQueue", "true");
        var createQueueResponse = sqs.CreateQueueAsync(sqsRequest).Result;
        var myQueueUrl = createQueueResponse.QueueUrl;

        var listQueueRequest = new ListQueuesRequest();
        var listQueueResponse = sqs.ListQueuesAsync(listQueueRequest);

        foreach (var url in listQueueResponse.Result.QueueUrls)
        {
            Console.WriteLine(url);
        }

        var sqsMessageRequest = new SendMessageRequest
        {
            QueueUrl = myQueueUrl,
            MessageBody = userId,
            MessageGroupId = "test",
            MessageDeduplicationId = "test"
        };
        sqs.SendMessageAsync(sqsMessageRequest);
        return myQueueUrl;

拉取数据-

        var sqs = new AmazonSQSClient(RegionEndpoint.APSoutheast1);
        var queueUrl = sqs.GetQueueUrlAsync("SQSChatFIFOQueue.fifo").Result.QueueUrl;

        var receiveMessageRequest = new ReceiveMessageRequest
        {
            QueueUrl = queueUrl
        };

        var receiveMessageResponce = sqs.ReceiveMessageAsync(receiveMessageRequest).Result;

尚未从.net核心中的AWS sqs fifo队列接收邮件

2 个答案: