AWS Lambda access denied to a module in subfolder

Question

I have this Nodejs lambda function where some files are in a subfolder, like this:

- index.js
- connectors/
    - affil.js

I have a Cannot find module error when trying to require the affil.js file. Trying to read it with fs.readFile returns an access denied error.

When I move the file to the root folder, it is accessible. Is there a requirement that Lambda functions files must all be at the root directory? How can I fix that?

Answer 1

Mostly it is because of the way zipping the files making the problem. Instead of zipping the root folder you have to select all files and zip it like below,

Please upload all files and subfolders like below. Please include node_modules folder as well in the zip.