I have a lambda function which was working fine but I wanted to import a package so I created a directory with index.js and installed my npm package.
Then created a zip of this folder and uploaded it using
aws lambda update-function-code --function-name smrtfac-test --zip-file fileb://lambda.zip
But now I am getting this error
index.handler is undefined or not exported
What could be the reason for it?
my index.js and node_modules are in the same directory.
This usually occurs when you zip up the directory, instead of zipping up the contents of the directory. When you open your zip file to browse the content, the index.js file should be in the root of the zip file, not in a folder.
You could also change the Handler section as below if your index.js is not directly under root folder as below
Consider using Lambda Layers for node modules: https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html#configuration-layers-path
This is because you are probably submitting the project inside a directory. You just zip all the files directly instead of zipping them into a directory. The index file needs to be at the root to be able to be read and accessed by lambda.
If you're using typescript with CDK, make sure you are not exporting another function within your main function file.