Custom-resources.zip is huge (node.js)

I have a small serverless project I started recently with node.js on AWS. It currently has 6 functions.

When packaged, each of those functions is between 50 and 800 KB.

I have 3 dependencies installed via npm, and 8 dev-dependencies, one of which is the aws-sdk.

However, in the .serverless folder there is another zip called custom-resources.zip. It is 49MB. Unzipped, it is 300MB, which causes CloudFormation to fail. It appears to be fully generated by the framework. The contents of this zip are as follows:

  • apiGatewayCloudWatchRole (folder, 2KB)
  • cognitoUserPool (folder, 10KB)
  • eventBridge (folder, 7KB)
  • s3 (folder, 7KB)
  • node_modules (folder, 49MB)
  • package.json (file, 1KB)
  • utils.js (file, 3KB)
  • README.md (file, 1KB)

This particular node_modules folder contains a single module, which is my entire project directory, which contains my entire node_modules file including all dependencies.

I’m pretty sure that shouldn’t be uploaded, especially since it also includes my .idea/ folder which is supposed to be excluded with

package:
  individually: true
  exclude:
    - '*.iml'
    - .idea/**

Is this supposed to happen?

Hey there. I just faced the same issue. Did you figure out a solution?

It should be fixed in version 1.53.