get_my/server/main.js

import { Meteor } from 'meteor/meteor';
import { SysConfig } from '../imports/api/systemConfig';

Meteor.startup(() => {
  // code to run on server at startup
  Roles.createRole("user", {unlessExists: true});
  Roles.createRole("admin", {unlessExists: true});
  Roles.createRole("systemadmin", {unlessExists: true});

  // set the systemconfig defaults for registration
  let regPolicy = SysConfig.findOne({});
  if (typeof regPolicy == 'undefined') {
    return SysConfig.insert({
      SysAdminReg: false,
      dateAdded: new Date(),
      allowReg: true,
    });
  } else {
    console.log("Registration policy already set.");
  }
});