How to deploy dependencies package for Lambda function using CDK?

Question

Hi, I have a lambda function with some package dependencies. I am using AWS Lambda construct library to deploy the lambda function using AWS CDK with TypeScript. Please suggest me the proper way to deploy these package dependencies for my lambda function through CDK.

Thank you!!

Answer

Hi, the right to do that is to use Lambda Layers: https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html

```
A layer is a .zip file archive that can contain additional code or data. A layer can 
contain libraries, a custom runtime, data, or configuration files. Layers promote 
code sharing and separation of responsibilities so that you can iterate faster on 
writing business logic.
```

You may also want to read this post; https://aws.amazon.com/blogs/compute/using-lambda-layers-to-simplify-your-development-process/

It will allow you to cleanly separate your code from its dependencies in terms of deployments, etc.

Best,

Didier

How to deploy dependencies package for Lambda function using CDK?

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