node.js - DynamoDB 导致 Node/Lambda 中的模块初始化错误

Question

为了清楚起见，这发生在 Node 6.10 AWS Lambda 函数中。

错误:

module initialization error: Error
at Object.Service (/var/task/node_modules/aws-sdk/lib/service.js:24:28)
at Object.features.constructor [as DynamoDB] (/var/task/node_modules/aws-sdk/lib/util.js:602:24)
at Object.<anonymous> (/var/task/web.js:4:22)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)


模块的初始化:

const aws = require('aws-sdk');
this.dynamoDb = new aws.DynamoDB();


不知道在这里做什么；缺少一些明显的东西吗？

Answer 1

请尝试一下，

var AWS = require("aws-sdk");

//If you are running in Lambda you don't need below AWS.config section
AWS.config.update({
region: "REGION"
});

var docClient = new AWS.DynamoDB.DocumentClient();

并使用“docClient”访问 DynamoDB 函数。

例如，

  docClient.put(params, function (err, data) {
    if (err) {
        console.error("Unable to add item. Error JSON:", JSON.stringify(err,null, 2));
    } else {
        callback(null, "Error while adding data:", JSON.stringify(data, null, 2))
    }
});

请找到我在 GitHub 中创建的示例:- https://github.com/vnathv/DynamoDb-CRUD.git