TypeError: _firebase__WEBPACK_IMPORTED_MODULE_2__.db.collection is not a function

user_15156640 0
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I saw that this question was posted 2 days ago. I tried the fixes that solved it for someone else, however I still can't seem to figure out where I'm going wrong. I am trying to get a contact page working using React. Thanks in advance!

import React, { useState } from 'react';
import '../App.css';
import { db } from '../firebase';


const Contact = () => {

  const [name, setName] = useState('');
  const [email, setEmail] = useState('');
  const [message, setMessage] = useState('');

  const handleSubmit = (e) => {
    e.preventDefault();

    db.collection('contacts')
    .add({
      name:name,
      email:email,
      message:message,
    })
    .then(() => {
      alert('Message submitted ' );
    })
    .catch((error) => {
      alert(error.message);
    });

    setName('');
    setEmail('');
    setMessage('');
  };


  return (



  )
}

export default Contact

firebase.js file:

import { initializeApp } from "firebase/app";
import { getFirestore } from 'firebase/firestore'

const firebaseConfig = {
  apiKey: "",
  authDomain: "",
  projectId: "",
  storageBucket: "",
  messagingSenderId: "",
  appId: ""
};


const app = initializeApp(firebaseConfig);
const db = getFirestore(app)
export { db }
google-cloud-firestore firebase reactjs javascript
1 Answers

You are not exporting Firestore as db but the whole Firebase app instance. Try refactoring your code such that it exports Firestore instance as db:

import { initializeApp } from "firebase/app";
import { getFirestore } from "firebase/firestore";

const app = initializeApp(firebaseConfig);
const db = getFirestore(app)
export { db }

Also you are using the new Modular SDK (v9) which has a completely new syntax. I'd recommend following the documentation to understand it. Your query should be:

import { collection, addDoc } from "firebase/firestore"; 
import {db} from "../firebase"

  const handleSubmit = (e) => {
    e.preventDefault();

    addDoc(collection(db, "contacts"), {
      name:name,
      email:email,
      message:message,
    })
    .then(() => {
      alert('Message submitted ' );
    })
    .catch((error) => {
      alert(error.message);
    });

    setName('');
    setEmail('');
    setMessage('');
  };
user_131306970
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