在NodeJS Lambas中访问AWS SSM参数 [英] Accessing AWS SSM Parameters in NodeJS Lambas

问题描述

我能够从NodeJS中的AWS SSM参数存储本地检索数据，但是当我将代码移至Lambdas时却无法.

I am able to retrieve data from the AWS SSM Parameter Store locally in NodeJS but am unable to when I move my code to Lambdas.

我已经寻找并没有找到许多不使用无服务器"框架的使用NodeJS设置Lambda的示例.

I've hunted and not found many examples of setting up Lambdas with NodeJS that aren't using the "Serverless" framework.

我知道我缺少一些简单的东西.我只是不知道什么.

I know I'm missing something simple. I just don't know what yet.

我已将我的lambda的IAM策略授予这些权限:

I've given my lambda's IAM policy these permissions:

"Effect": "Allow",
"Action": [
    "ssm:PutParameter",
    "ssm:GetParameter"
],
"Resource": [
    "arn:aws:ssm:region:account-id:parameter/Name/Of/Parameter"
]

AWS.config.update({region: 'my-region'})
const ssm = new AWS.SSM()
ssm.getParameter({
  Name: '/Name/Of/Parameter',
  WithDecryption: false
}, (err, data) => {
  if (err) {
    reject(err);
  }
  if (data.Parameter !== undefined) {
     resolve(data.Parameter.Value);
  }
  reject(new Error('No Parameter'));
});

在本地定义数据.在我的lambda中，我得到以下错误:"{TypeError:无法读取属性'Parameter'为null"，意味着'data'是空的，就像err一样.

Locally data is defined. In my lambda I get the error: "{ TypeError: Cannot read property 'Parameter' of null" meaning 'data' is empty as is err.

任何见识都会受到赞赏.

Any insight is appreciated.

推荐答案

尝试使用下面的promise语法-它对我有用.请注意，我也获得了多个参数，因此调用也有所不同.

Try the promise syntax below--it works for me. Note that I am also getting multiple parameters, so the call is different, as well.

"Action": [
    "ssm:GetParameters",
    "ssm:GetParameter"
],

然后...

ssm.getParameters({
      Names: [`/path/${environmentStage}/more/path/${name}`],
      WithDecryption: true,
    }).promise()).then(data => data.Parameters.length ? data.Parameters[0].Value : Promise.reject(new Error(`SSM Parameter ${name} is not set.`)));

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