问题
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.
I've hunted and not found many examples of setting up Lambdas with NodeJS that aren't using the "Serverless" framework.
I know I'm missing something simple. I just don't know what yet.
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'));
});
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.
Any insight is appreciated.
回答1:
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"
],
Then...
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.`)));
来源:https://stackoverflow.com/questions/56283621/accessing-aws-ssm-parameters-in-nodejs-lambas