Firestore v9 预期 collection() 的第一个参数是 CollectionReference、DocumentReference 或 FirebaseFirestore

Question

我尝试将新用户从注册页面添加到 firestore，但没有成功。

这是我的 config.js

import { initializeApp } from 'firebase/app';
import { getAuth } from 'firebase/auth';
import { getDatabase } from "firebase/database";

const firebaseConfig = initializeApp ({
  //cred
});

export const auth = getAuth(firebaseConfig)
export const database = getDatabase(firebaseConfig);

和Signup.js

import React, { Component } from "react";
import  firebase  from "./config";
import { collection, addDoc,doc } from "firebase/firestore"; 

class Signup extends Component {

    constructor(props) {
        super(props);
        this.state = {
            name: '-',
            email: '-',
        };
    }

    addUser = e => {
        e.preventDefault();

        try {
            const collectionRef = doc(database, 'users');
            const docRef = addDoc(collectionRef, {
                name: this.state.name,
                email: this.state.email,
            });
          } catch (e) {
            console.error("Error adding document: ", e);
          }

    render(){
        return (
            <div>
              //do something
              <button className="btn btn-primary" onClick={this.addUser}>Submit</button>
            </div>
    )}
}

这是错误：

FirebaseError: Expected first argument to collection() to be a CollectionReference, a DocumentReference or FirebaseFirestore

我把Config.js改成了：

export const auth = getAuth()
export const database = getDatabase();

我仍然遇到同样的错误。是不是说明我没有连接firestore成功？ :'( 请帮我解决这个问题。谢谢。

Answer 1

const collectionRef = doc(database, 'users');

这里的database是实时数据库实例，不是Firestore。

export const database = getFirestore(); // not getDatabase()

您必须使用 getFirestore() 获取 Firestore 实例并将其传入 doc()。即使向 doc().

传递了无效参数，错误也会显示 Expected first argument to collection()

Answer 2

尝试更改集合的路径

const collectionRef = doc(database, '/users');

它对我有用！

Firestore v9 预期 collection() 的第一个参数是 CollectionReference、DocumentReference 或 FirebaseFirestore

Firestore v9 Expected first argument to collection() to be a CollectionReference, a DocumentReference or FirebaseFirestore

compiler-errors

node.js

firebase

reactjs

google-cloud-firestore