通过lambda函数向SQS发送消息时如何插入

Question

我正在尝试使用 Lambda 向 SQS 队列发送消息：

这是我的代码：

var QUEUE_URL = 'https://us-west-2.queue.amazonaws.com/123456789/ntech-event-processing-dev.fifo';
var AWS = require('aws-sdk');
var sqs = new AWS.SQS({region : 'us-west-2'});

exports.handler = function(event, context) {
  var params = {
    MessageBody: JSON.stringify(event),
    QueueUrl: QUEUE_URL
  };
  sqs.sendMessage(params, function(err,data){
    if(err) {
      console.log('error:',"Fail Send Message" + err);
      context.done('error', "ERROR Put SQS");  // ERROR with message
    }else{
      console.log('data:',data.MessageId);
      context.done(null,'');  // SUCCESS 
    }
  });
}

这是我的测试数据 (JSON)，请注意我在那里定义了 MessageGroupId。

{
  "MessageGroupId": "1",
  "key1": "value1",
  "key2": "value2",
  "key3": "value3"
}

我收到以下错误：

2020-04-16T17:40:37.604Z    fa709a07-0bcd-4b17-a48b-341a984aec88    INFO    error: Fail Send MessageMissingParameter: The request must contain the parameter MessageGroupId.
2020-04-16T17:40:37.661Z    fa709a07-0bcd-4b17-a48b-341a984aec88    ERROR   Invoke Error    {"errorType":"Error","errorMessage":"error","stack":["Error: error","    at _homogeneousError (/var/runtime/CallbackContext.js:13:12)","    at postError (/var/runtime/CallbackContext.js:30:54)","    at done (/var/runtime/CallbackContext.js:57:7)","    at Object.done (/var/runtime/CallbackContext.js:105:16)","    at Response.<anonymous> (/var/task/index.js:13:15)","    at Request.<anonymous> (/var/runtime/node_modules/aws-sdk/lib/request.js:364:18)","    at Request.callListeners (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:106:20)","    at Request.emit (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:78:10)","    at Request.emit (/var/runtime/node_modules/aws-sdk/lib/request.js:683:14)","    at Request.transition (/var/runtime/node_modules/aws-sdk/lib/request.js:22:10)"]}

我查看了： Lambda：向 SQS 发送消息并且 Lambda 无法向 SQS 发送消息 但我没有找到答案。

感谢任何帮助！

Answer 1

如果您查看SQS文档，您可以看到：

MessageGroupId - 此参数仅适用于 FIFO（先进先出）队列。

我假设您不小心在 SQS 上创建了 FIFO 队列。所以你需要那个附加参数。您可以像这样修改您的代码：

var QUEUE_URL = 'https://us-west-2.queue.amazonaws.com/123456789/ntech-event-processing-dev.fifo';
var AWS = require('aws-sdk');
var sqs = new AWS.SQS({region : 'us-west-2'});

exports.handler = function(event, context) {
  var params = {
    MessageBody: JSON.stringify(event),
    QueueUrl: QUEUE_URL,
    MessageGroupId: "TestGroup"
  };
  sqs.sendMessage(params, function(err,data){
    if(err) {
      console.log('error:',"Fail Send Message" + err);
      context.done('error', "ERROR Put SQS");  // ERROR with message
    }else{
      console.log('data:',data.MessageId);
      context.done(null,'');  // SUCCESS 
    }
  });
}

如果您没有从活动中获取 MessageGroupId，则将 MessageGroupId 放入活动中并没有任何帮助。如果您想从事件接收 MessageGroupId 可能如下所示：

var QUEUE_URL = 'https://us-west-2.queue.amazonaws.com/123456789/ntech-event-processing-dev.fifo';
var AWS = require('aws-sdk');
var sqs = new AWS.SQS({region : 'us-west-2'});

exports.handler = function(event, context) {
  var params = {
    MessageBody: JSON.stringify(event),
    QueueUrl: QUEUE_URL,
    MessageGroupId: event.MessageGroupId
  };
  sqs.sendMessage(params, function(err,data){
    if(err) {
      console.log('error:',"Fail Send Message" + err);
      context.done('error', "ERROR Put SQS");  // ERROR with message
    }else{
      console.log('data:',data.MessageId);
      context.done(null,'');  // SUCCESS 
    }
  });
}

我发现有用的教程是这个。