Easiest way to replicate a lambda?

Question

I have two lambdas now in production, and want to set up development copies of them to safely try out new code in. As far as I can tell, Lambda's don't have the built-in prod/dev multicopy capability that Alexa skills do, so it looks like I have to do this manually. Is there a shortcut for doing so? I see that it's possible to export lambda configurations as SAM and/or development package, but the best instructions I've found so far (https://aws.amazon.com/premiumsupport/knowledge-center/lambda-function-migration-aws-sam/) require bouncing the SAM through an S3 instance, and it seems to me that there should be a simpler solution. I can't be the only developer with this need...

Answer

The best way to do this is to create a CloudFormation template to create the Lambda function. That way you can deploy it as many times as you like in as many accounts as you like. Sure, it's a bit of extra work up front but it saves a bunch of effort later on.

Answer

To duplicate a lambda function, 
select the lambda function you want to duplicate on lambda console, 
then you can go Actions > Export Function > Download deployment package (at the top right corner)

This downloads a .zip file of the function.
Then create a new Lambda, and go "Upload from" (right above the code editor) > ".zip file"

N.B: This duplicates the code and npm modules etc. 
Not the triggers or permissions of the function. This has to be set manually.

Answer

See this [post](https://stackoverflow.com/a/71584720/11405063) from stack overflow, which seems the SAM config file can be exported and used with CloudFormation to duplicate the lambda function.

Easiest way to replicate a lambda?

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