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[aws-lambda] CurrentVersion not available for imported Lambda@Edge function

See original GitHub issue

❓ General Issue

The Question

I’m only able to get .currentVersion on the new lambda function, but not on the imported one.

Is it possible to get .currentVersion property of the imported Lambda@Edge function?

Environment

CDK CLI Version: 1.60.0
Node.js Version: v14.8.0
OS: OSX Mojave
Language (Version): TypeScript (3.8.3)

Other information

Issue Analytics

State:
Created 3 years ago
Comments:5 (5 by maintainers)

Top GitHub Comments

7reactions

jogoldcommented, Aug 24, 2020

@robertd like I proposed in #9892 with fromVersionArn():

const functionVersion = lambda.Version.fromVersionArn(this, 'Version', 'arn:aws:lambda:us-east-1:1234567890:function:test-cloudfront:1');

const distro = new cloudfront.Distribution(this, "cf-distro", {
  defaultBehavior: {
    origin: new origins.S3Origin(testBucket),
    viewerProtocolPolicy: cloudfront.ViewerProtocolPolicy.REDIRECT_TO_HTTPS,
    edgeLambdas: [
       {
         functionVersion, // <== the imported version is used here
         eventType: cloudfront.LambdaEdgeEventType.VIEWER_REQUEST
       },
    ]
  },
  certificate: acmCertificate,
  defaultRootObject: "index.html",
  priceClass: cloudfront.PriceClass.PRICE_CLASS_100,
});

1reaction

robertdcommented, Aug 24, 2020

@nija-at I’m trying to import an existing L@E function. As you know, Lambda@Edge functions can only be created in us-east-1; the default region we use is us-west-2. This function (it’s current version) is used as a parameter for the CloudFront distribution construct.

const lambdaEdge = lambda.Function.fromFunctionArn(this, "test", "arn:aws:lambda:us-east-1:1234567890:function:test-cloudfront:1");

const distro = new cloudfront.Distribution(this, "cf-distro", {
  defaultBehavior: {
    origin: new origins.S3Origin(testBucket),
    viewerProtocolPolicy: cloudfront.ViewerProtocolPolicy.REDIRECT_TO_HTTPS,
    edgeLambdas: [
       {
         functionVersion: lambdaEdge.currentVersion, // <== This doesn't exist on the imported lambda function
         eventType: cloudfront.LambdaEdgeEventType.VIEWER_REQUEST
       },
    ]
  },
  certificate: acmCertificate,
  defaultRootObject: "index.html",
  priceClass: cloudfront.PriceClass.PRICE_CLASS_100,
});