AWS lambda发送SNS"成功"但不发送实际发送的消息

Question

我编写了一个AWS lambda函数,用于在上传S3对象时发送文本消息.我已经确认了订阅,我可以收到SNS控制台发送的测试消息.

当我测试lambda时,所有日志都说方法成功,但没有任何子消息到达.这是函数(主要是示例模板,但在本文中为了安全性而改变了我的主题).任何有关测试/尝试下一步的提示都会受到赞赏.

console.log('Loading function');
var aws = require('aws-sdk');
var s3 = new aws.S3({ apiVersion: '2006-03-01' });
exports.handler = function(event, context) {
    var bucket = event.Records[0].s3.bucket.name;
    var key = decodeURIComponent(event.Records[0].s3.object.key.replace(/\+/g, ' '));
    var params = {
        Bucket: bucket,
        Key: key
    };
    var sns = new aws.SNS();
    console.log('start of brians sns function')
    var pubResult = sns.publish({
        Message: 'Test publish to SNS from Lambda',
        TopicArn: 'arn:aws:sns:us-east-1:xxxxxxxxxxxx:lambdatop'
    }, function(err, data) {
        if (err) {
            console.log(err.stack);
            return;
        }
        console.log('push sent');
        console.log(data);
    });
    console.log('after sns publish:')
    console.log(pubResult)
    context.done(null, 'Brians Function Finished!');  
};

Answer 1

你打电话context.done()后正在打电话publish().publish()函数是一个异步调用,您不会等待它完成.另外,我认为你的变量不pubResult包含你期望的变量.

试试这个:

console.log('Loading function');
var aws = require('aws-sdk');
exports.handler = function(event, context) {
    var sns = new aws.SNS();
    console.log('start of brians sns function')
    sns.publish({
        Message: 'Test publish to SNS from Lambda',
        TopicArn: 'arn:aws:sns:us-east-1:xxxxxxxxxxxx:lambdatop'
    }, function(err, data) {
        if (err) {
            console.log(err.stack);

            // Notify Lambda that we are finished, but with errors
            context.done(err, 'Brians Function Finished with Errors!');  
            return;
        }
        console.log('push sent');
        console.log(data);

        // Notify Lambda that we are finished
        context.done(null, 'Brians Function Finished!');  
    });
};