Call a function in NodeJS

I am trying to call a custom function using NodeJS

Created the custom function in a file ‘shortuuid.js’ in folders: extensions > server_connect > modules

Screenshot 2020-12-19 at 17.16.51914×527 33.3 KB

I then created a function in API:
in the functions steps I created a Set Value gave it a name and called the new custom function.

Screenshot 2020-12-19 at 17.21.09393×966 40.2 KB

I tried to see the result with a response

Tried everything but keep getting a 500 server error.

Also why is there no console.log step? It is an important part of development.