如何在中获取新创建的Firestore文档的IDVue.js?

当我从表单“创建”数据时,我可以将其发送到数据库,但当我尝试更新本地对象数组时,没有文档id,因为这是由firebase在创建新文档时创建的。那么,如何在不必从数据库获取所有数据的情况下检索新的文档id呢?

这一定有规律。我唯一能想到的就是 '全部'

有没有办法让id传回新创建文档的组件?

<template lang="html">
  <div class="crud">
    <h1>I am the crud component</h1>
    <div v-for="item in peoples" :key="peoples.id" class="peoples">
      <h3>name: {{ item.name}} age: {{ item.age}} id: {{ item.id }} <button @click="deletePeople(item.id)">delete</button> </h3>
    </div>
    <form @submit.prevent="addPerson()">
      <div>
        <label for="name">Name:</label>
        <input type="text" name="name" v-model="name">
      </div>
      <div>
        <label for="age">Age:</label>
        <input type="number" name="age" v-model="age">
      </div>
      <div>
        <button>add person to database</button>
      </div>
   </form>
  </div>
</template>

<script>
import db from '@/firebase/init'

export default {
  name: 'Crud',
  data(){
    return {
      msg: 'hello all',
      peoples: [],
      name: null,
      age: null
    }
  },
  methods:{
    addPerson(){
      console.log('addPerson() method running');
      console.log('person: ' + this.name);
      db.collection('people').add({
        name: this.name,
        age: this.age
      }).then(() => {

        db.collection('people').get().then(snapshot => {
          this.peoples = []
          snapshot.forEach(doc => {
            // console.log(doc.data(), doc.id);
            let people = doc.data()
            people.id = doc.id
            this.peoples.push(people)
          })
        })

        // console.log('push to local data');
        // this.peoples.push({ name: this.name, age: this.age})
      })
    },

任何帮助都将不胜感激,