您是否可以使用由node.js支持的AWS Lambda函数将消息发布到SNS主题? [英] Can you publish a message to an SNS topic using an AWS Lambda function backed by node.js?

问题描述

您可以使用由node.js支持的AWS Lambda函数将消息发布到SNS主题吗?

Can you publish a message to an SNS topic using an AWS Lambda function backed by node.js?

推荐答案

是的，您可以编写发布到SNS主题的Lambda函数.在Lambda中运行的代码可以访问完整的AWS开发工具包，用于 Java 或JavaScript (无论您使用的是哪个函数).您只需要确保授予执行功能的IAM角色访问权限即可发布到您的主题.用Java语言编写:

Yes, you could write a Lambda function that publishes to an SNS topic. The code running in Lambda has access to the full AWS SDK for Java or Javascript, whichever your function is using. You just need to make sure you give the IAM role executing the function access to publish to your topic. In Javascript:

console.log("Loading function");
var AWS = require("aws-sdk");

exports.handler = function(event, context) {
    var eventText = JSON.stringify(event, null, 2);
    console.log("Received event:", eventText);
    var sns = new AWS.SNS();
    var params = {
        Message: eventText, 
        Subject: "Test SNS From Lambda",
        TopicArn: "arn:aws:sns:us-west-2:123456789012:test-topic1"
    };
    sns.publish(params, context.done);
};

还可以使用Lambda函数处理SNS消息.您可能会看到通过Lambda控制台上的 Create a Lambda function 按钮创建的sns-message函数蓝图.

It is also possible to handle SNS messages using Lambda functions. You might take a look at the sns-message function blueprint, offered through the Create a Lambda function button on the Lambda console.

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