AWS dynamodb 端点不正确

Question

我正在使用 sails js（最新版本 1.0）和 DynamoDB（我已经在我的本地机器上安装了 Sails js 框架）但是当我试图从 aws dynamodb 读取记录时出现错误.我尝试了以下案例，每次都会遇到不同的错误。

var AWS = require("aws-sdk");
AWS.config.update({
  region: "ap-southeast-2",
  endpoint: "http://localhost:1337"
});

var docClient = new AWS.DynamoDB.DocumentClient();
var table = "SMSGateway_User";
var email = 'yoursptc@gmail.com';

var params = {
    TableName: table,
    Key:{
        "userEmail": email
    }
};

docClient.get(params, function(err, data) {
    if (err) {
        console.log("Unable to read item. Error JSON:", JSON.stringify(err, null, 2));
    } else {
        console.log("GetItem succeeded:", JSON.stringify(data, null, 2));
    }
});

我得到的错误：

Unable to read item. Error JSON: { "message": "Missing credentials in config", "errno": "ETIMEDOUT", "code": "CredentialsError",
"syscall": "connect", "address": "169.254.169.254", "port": 80,
"time": "2018-10-05T05:05:26.002Z", "originalError": { "message": "Could not load credentials from any providers", "errno": "ETIMEDOUT", "code": "CredentialsError", "syscall": "connect", "address": "169.254.169.254", "port": 80, "time": "2018-10-05T05:05:26.001Z", "originalError": { "errno": "ETIMEDOUT", "code": "ETIMEDOUT", "syscall": "connect", "address": "169.254.169.254", "port": 80, "message": "connect ETIMEDOUT 169.254.169.254:80" } } }

当我更改并为配置添加以下代码时：

AWS.config.update({
  accessKeyId: 'XXXXXXXXXXXX',
  secretAccessKey: 'XXXXXXXXXXXXXXXXXXXXXXXXXXX',
  region: "ap-southeast-2",
  endpoint: "http://localhost:1337"
});

然后出现以下错误：

Unable to read item. Error JSON: { "message": "Not Found", "code": "UnknownError", "statusCode": 404, "time": "2018-10-05T06:08:28.707Z", "retryable": false, "retryDelay": 47.4917958614573 }

当我更改终点并输入 ARN

AWS.config.update({
  accessKeyId: 'XXXXXXXXXXXX',
  secretAccessKey: 'XXXXXXXXXXXXXXXXXXXXXXXXXXX',
  region: "ap-southeast-2",
  endpoint: "arn:aws:dynamodb:ap-southeast-2:420344081058:table/SMSGateway_User"
});

错误是：

Unable to read item. Error JSON: { "message": "Inaccessible host: arn'. This service may not be available in theap-southeast-2' region.", "code": "UnknownEndpoint", "region": "ap-southeast-2",
"hostname": "arn", "retryable": true, "originalError": { "message": "getaddrinfo ENOTFOUND arn arn:443", "errno": "ENOTFOUND", "code": "NetworkingError", "syscall": "getaddrinfo", "hostname": "arn", "host": "arn", "port": 443, "region": "ap-southeast-2", "retryable": true, "time": "2018-10-05T06:17:21.352Z" }, "time": "2018-10-05T06:17:21.352Z" }

谁能告诉我在 dynamoDB 中读取、创建、更新和删除数据的正确终点是哪一个。

我正在关注此参考：https://docs.amazonaws.cn/en_us/amazondynamodb/latest/developerguide/GettingStarted.NodeJs.03.html#GettingStarted.NodeJs.03.02

任何帮助将不胜感激。

Answer 1

经过大量研究，我找到了为什么它不起作用的解决方案

   var AWS = require("aws-sdk");
   //AWS.config.loadFromPath('details.json');
   AWS.config.update({
     accessKeyId: 'XXXXXXXXXXXXXXXX',
     secretAccessKey: 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX',
     region: "XXXXXXXXX",
   });

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

/* Get single item */

   var table = "TABLE NAME";
   var msgId = 'PRIMARY KEY VALUE';
   var params = {
       TableName: table,
       Key:{
           'MsgId': msgId
       }
   };

   docClient.get(params, function(err, data) {
       if (err) {
           console.error("Unable to read item. Error JSON:", JSON.stringify(err, null, 2));
       } else {
           console.log("GetItem succeeded:", JSON.stringify(data, null, 2));
       }
   });

要获取 table 的所有记录，只需使用如下所示的扫描功能

   var table = "PadmanStopsTest";
   var params = {
       TableName: table,
   };
   docClient.scan(params, function(err, data) {
       if (err) {
           console.error("Unable to read item. Error JSON:", JSON.stringify(err, null, 2));
       } else {
           console.log("GetItem succeeded:", JSON.stringify(data, null, 2));
       }
   });

不需要终点，只需要通过accessKeyId、secretAccessKey和region。我在参数中传递电子邮件，所以这里我们需要传递 table.

的主键值

我已经通过了，它对我来说工作正常。

AWS dynamodb 端点不正确

AWS dynamodb endpoints is not correct

node.js

amazon-dynamodb

sails.js