我无法使用 DynamoDB BatchWrite 删除多个项目，包括主键和排序键

Question

所以我正在尝试删除同一用户的两条记录。但是，当我运行下面的 Lambda 函数时，它实际上不会控制台记录成功或失败，并且不会在 DynamoDB 中删除记录。任何关于如何修改以下内容以获得删除两条记录的预期结果的任何建议都将不胜感激。谢谢

包括几个用于故障排除的控制台日志
PK和SK都是DynamoDB中的字符串
两个删除请求都是针对同一个用户的，只是同一个 table

'use strict'
const AWS = require('aws-sdk');

AWS.config.update({ region: "us-east-1" });

exports.handler = async (event, context) => {
    var ddb = new AWS.DynamoDB.DocumentClient();
    
    
    var records = [{
        DeleteRequest : {
            Key : {
                'PK' : 'username',
                'SK' : 'C297329360'
            }
        },
        DeleteRequest : {
            Key : {
                'PK' : 'username',
                'SK' : 'R297329360'
            }
        }
    }];
    
    var params = {
        RequestItems : {
            'userTable' : records
        }
    };
    console.log(JSON.stringify(records));
    console.log(records);
    console.log(JSON.stringify(params));
    console.log(params);
    
    ddb.batchWrite(params, function(err, data) {
        if (err) {
            console.log('Batch delete unsuccessful ...');
            console.log(err, err.stack); // an error occurred
        } else {
            console.log('Batch delete successful ...');
            console.log(data); // successful response
        }
    
    });
}

Test Event Name
DeleteReportById

Response
null

Function Logs
START RequestId: 6c40c1f7-5cdb-4cef-95a7-306d540aa9f9 Version: $LATEST
2022-02-11T13:49:56.007Z    6c40c1f7-5cdb-4cef-95a7-306d540aa9f9    INFO    [{"DeleteRequest":{"Key":{"PK":"username","SK":"R297329360"}}}]

2022-02-11T13:49:56.046Z    6c40c1f7-5cdb-4cef-95a7-306d540aa9f9    INFO    [ { DeleteRequest: { Key: [Object] } } ]

2022-02-11T13:49:56.047Z    6c40c1f7-5cdb-4cef-95a7-306d540aa9f9    INFO    {"RequestItems":{"FitTool_Prod":[{"DeleteRequest":{"Key":{"PK":"username","SK":"R297329360"}}}]}}

2022-02-11T13:49:56.065Z    6c40c1f7-5cdb-4cef-95a7-306d540aa9f9    INFO    { RequestItems: { userTable: [ [Object] ] } }

END RequestId: 6c40c1f7-5cdb-4cef-95a7-306d540aa9f9
REPORT RequestId: 6c40c1f7-5cdb-4cef-95a7-306d540aa9f9  Duration: 589.81 ms Billed Duration: 590 ms Memory Size: 128 MB Max Memory Used: 77 MB  Init Duration: 474.35 ms

Request ID
6c40c1f7-5cdb-4cef-95a7-306d540aa9f9

Answer 1

您没有等待 batchWrite 调用完成，lambda 在实际将请求发送到 DynamoDB 之前终止。你的处理程序是异步的，所以你可以这样做：

await ddb.batchWrite(...).promise()

我无法使用 DynamoDB BatchWrite 删除多个项目，包括主键和排序键

I Cant delete multiple items using DynamoDB BatchWrite including a primary key and sort key

node.js

amazon-dynamodb