Question

我既不是Node.js也不是AWS Lambda专家，所以我可能会做错事。我编写了下面的代码，使用AWS CLI从命令行执行时效果很好，但是在lambda函数中不会调用它。

您能告诉我要查找或调试的内容以了解原因吗？感谢。

var aws = require('aws-sdk');

console.log('Loading function');

exports.handler = function(event, context) {
console.log('Received event:', JSON.stringify(event, null, 2));
console.log('value1 =', event.key1);
var params = {
Bucket: 'nicobucket1',
Body: 'hellolll',
Key: 'mykey',
};
var s3 = new aws.S3();
console.log('Created S3 object, invoking upload...' + JSON.stringify(s3));
s3.upload(params, function(err, data){
console.log('...in function upload...');
if(err){ 
console.log(err);
context.fail('Could not create object in bucket...');
}
else console.log ('Uploaded data, check the console...');
});

context.succeed('Created object in S3 bucket!'); 
};

我在日志中看到除了s3.upload函数中的所有console.log消息。当然不会创建对象。从命令行一切都很好。

Answer 1

context.succeed();最有可能在s3.upload()有机会完成之前执行。尝试将context.succeed()'行移动到s3.upload函数中。我还注意到在mykey＆＃39;之后你的params中有一个额外的逗号。我已经尝试了以下修改后的代码版本并且成功了。

＆＃13;

var aws = require('aws-sdk');

console.log('Loading function');

exports.handler = function(event, context) {
    console.log('Received event:', JSON.stringify(event, null, 2));
    console.log('value1 =', event.key1);
    var params = {
        Bucket: 'nicobucket1-unique',
        Body: 'hellolll',
        Key: 'mykey'
        };
    
    var s3 = new aws.S3();
    
    console.log('Created S3 object, invoking upload...' + JSON.stringify(s3));
    
    s3.upload(params, function(err, data){
        console.log('...in function upload...');
        
        if(err){ 
            console.log(err);
            context.fail('Could not create object in bucket...');
        }
        else 
        {
            console.log ('Uploaded data, check the console...');
            context.succeed('Created object in S3 bucket!');
        }
         
    });
    
};

＆＃13;

希望这有助于某人。

lambda函数中的代码根本没有被调用

1 个答案: