Николай

const obj = reactive()
obj.key = value

router.beforeEach((to, from, next) => {
  const auth = getAuth()
  auth.onAuthStateChanged(user => {    
    if (!user && to.path !== '/auth') {
      next('/auth')
    }
    else if (user && to.path === '/auth') {
      next(from.path)
    } 
    next()
  })
})

<FormKit v-for="(deadline_type, idx) in data.deadline_types" key="deadline_type.id"
                               type="date"
                               v-model="form[idx]deadline_type.code"
                               :label="deadline_type.name"
                      />

export default {
    name: 'AuthCallback',
    data() {
        return {
            accessToken: {},
        }
    },
    mounted() {
        const tokenParseRegex: RegExp = /access_token=(.*?)&/;
        const idParseRegex: RegExp = /user_id(.*?)/;
        const exAccessToken: RegExpMatchArray | null = useRoute().hash.match(tokenParseRegex);
        this.accessToken = exAccessToken![1]
    }
}