我正在尝试找到一个如何连接到node.js中的AWS ES实例的示例，然后通过一个简单的请求访问ES集群。

我正在尝试使用elasticsearch
node软件包以及一个名为http-aws-
es的开源插件来执行此操作。

我已经将aws ES访问策略配置为如下所示：

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::<account-id>:root"
      },
      "Action": "es:*",
      "Resource": "example-domain.us-east-1.es.amazonaws.com:<account-id>:domain/*"
    },
    {
      "Sid": "",
      "Effect": "Allow",
      "Principal": {
        "AWS": "*"
      },
      "Action": "es:*",
      "Resource": "example-domain.us-east-1.es.amazonaws.com:<account-id>:domain/*",
      "Condition": {
        "IpAddress": {
          "aws:SourceIp": "<my-ip>"
        }
      }
    }
  ]
}

因此，我希望能够通过IP地址或链接到我的AWS帐户的IAM用户在es实例上发出放置和获取请求。

我在node.js中尝试以下代码：

var aws_access_key = 'example';
var aws_secret_key = 'key';

var es = require('elasticsearch').Client({
    hosts: 'example-domain.us-east-1.es.amazonaws.com',
    connectionClass: require('http-aws-es'),
    amazonES: {
        region: 'us-east-1',
        accessKey: aws_access_key,
        secretKey: aws_secret_key
    }
});

es.ping({
    // ping usually has a 3000ms timeout
    requestTimeout: Infinity,

    // undocumented params are appended to the query string
    hello: "elasticsearch!"
}, function (error) {
    if (error) {
        console.log(error);
        console.trace('elasticsearch cluster is down!');
    } else {
        console.log('All is well');
    }
});

当前返回授权错误：

{ [Error: Authorization Exception]
  status: 403,
  displayName: 'AuthorizationException',
  message: 'Authorization Exception' }

我还没有看到通过在node.js中使用签名策略来使用aws ES实例的有效示例。有人有见识吗？