Rocket.Chat/app/authorization/server/functions/hasRole.js

import { Roles } from '../../../models/server/raw';

export const hasRoleAsync = async (userId, roleNames, scope) => {
	roleNames = [].concat(roleNames);
	return Roles.isUserInRoles(userId, roleNames, scope);
};

export const hasRole = (userId, roleNames, scope) => Promise.await(hasRoleAsync(userId, roleNames, scope));