CODEWITHSUNDEEP
pythonaws-lambdaaws-cdk
AJR
AJR

Reputation: 25

@aws/cdk cfnfunction upload code python structure

I'm trying to use CfnFunction to crate lambda but everything works as expected except the uploading code using

code_ = lambda_.CfnFunction.CodeProperty(
                           zip_file = "./function-code/db-snapshot/index.py")
    or 
                           zip_file = "./function-code/db-snapshot/index.zip")

after using this my lambda just creates only index.py and the context of the file is the path

./function-code/db-snapshot/index.py like this

Upvotes: 0

Views: 544

Answers (1)

lynkfox
lynkfox

Reputation: 2400

the cfn methods are escape hatches for when the CDK Construct does not have the necessary properties that you are trying to access from CloudFormation yet.

Lambda, however, is pretty much a done deal in CDK - you should be using aws_cdk.aws_lambda.Function() for creating a cdk lambda resource (see link for docs)

Then from there you can use the aws_lambda.AssetCode() methods to retrieve your code and zip it up for you

from aws_cdk import aws_lambda

aws_lambda.Function(self, "MyLambda",
    runtime=Runtime.PYTHON_3_8,
    handler="index.handler",    
    code=aws_lambda.AssetCode(os.path.join("path to your lambda directory", "index.py"))
  )

the above snippet assumes your have a file called index.py, and inside that file is a method defined as def handler(event, context): that is the entry point for your lambda.

Upvotes: 1

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