Initializing tables with default records via nodejs and mongoose

db_initialization.js

//refs to models
let User = require('../../app/common/models/user_models/user_model');
let UserRolePermission = require('../../app/common/models/user_models/user_role_permission_model');
let UserRole = require('../../app/common/models/user_models/user_role_model');
//=========================work starts here==================
let users_initialized;
let permissions_initialized;
let roles_initialized;

async function usersInitialized() {
    let user_count = await User.estimatedDocumentCount({});
    return (user_count > 0 );
}
async function permissionsInitialized() {
    let permission_count = await UserRolePermission.estimatedDocumentCount({});
    return (permission_count > 0);
}
async function rolesInitialized() {
    let role_count = await UserRole.estimatedDocumentCount({});
    return  (role_count > 0);
}
async function dbInitialized() {
    [users_initialized, permissions_initialized, roles_initialized] = await Promise.all([usersInitialized(), permissionsInitialized(), rolesInitialized()]);
    
    console.log('users_initialized:' + users_initialized);
    console.log('permissions_initialized:' + permissions_initialized);
    console.log('roles_initialized:' + roles_initialized);
    
    return  (users_initialized && await permissions_initialized && await roles_initialized);
}

async function initializeDb() {
    //Never mind definitions for these bootstrap functions
    await bootStrapPermissions();
    await bootStrapRoles();
    await bootStrapUsers();
}

module.exports = {
    dbInitialized,
    initializeDb
}

server.js

const dbInitialized = require('../helpers/db/db_initialization').dbInitialized;
const initializeDb = require('../helpers/db/db_initialization').initializeDb;
const mongoose = require('mongoose');
//skipped a few more declarations here

var db_connection = mongoose.connection;

//Every time I connect to db, I want to check if db key tables have been initialized else I initialize them with some default records
db_connection.on('connected', async function () {
	console.log('connected to the database server!');
		let db_boot_strap_done = await dbInitialized();
	if (db_boot_strap_done === false) {
		console.log('[' + app_name + '] ' + 'Attempting to initialize collections in the database...');
		await initializeDb();
	}
});