Unable to run a script inside docker compose

Question

I have a docker compose file which on up, will be starting a mongo service. What I want to do is as soon as it starts the service, I want to create a database called 'abc' and create a collection 'xyz' into it.

This is what I have tried so far

docker-compose file

services:

  database: 
    image: mongo
    ports:
      - 27017:27017
    command: sh initialSetup.sh

I get the below error

Not sure why is that not able to open the script

initialSetup.sh file

#!/bin/sh
mongo < mongoInitialSetup.js

and mongoInitialSetup.js

conn = new Mongo();
db = db.getSiblingDB('abc');
db.createCollection('xyz', {});

Add-on: It would be really great if someone could help me get this done with just the bash script without using the js file

Thanks in advance