flaschengeist-frontend/src/boot/login.ts

import { boot } from 'quasar/wrappers';
import { StateInterface } from '../store';

export default boot(({ Vue, router, store }) => {
    router.beforeEach((to, from, next) => {
        let user = (<StateInterface>store.state).user;

        if (to.matched.some(record => {
            // permissions is set AND has NO matching permission
            return record.meta.permissions !== undefined &&
                !(record.meta.permissions.filter(
                    (value: string) =>
                        user.permissions.includes(value)
                ).length > 0);
        })
        ) {
            next({
                path: '/login',
                query: { redirect: to.fullPath }
            });
        } else {
            next();
        }
    })
});