How can I retrieve a value from Firebase database/Reactjs-CodePudding

I have a Firebase database that contains Ethereum addresses for a whitelist. I'm a beginner, I just started with fireBase. I've done a lot of research and I got stuck. I would retrieve all the addresses inside the database and store them in an array using usestate in React JS.

Thank you very much

CodePudding user response：

import { collection, getDocs } from "firebase/firestore";
import { useState } from "react";

const [state,setState] = useState([]) 

const querySnapshot = await getDocs(collection(db, "nameOfYourCollection"));
querySnapshot.forEach((doc) => {
  setState(prevState=>[...prevState,doc.data()])
});

CodePudding user response：

If you have errors that say collection, getDocs, db not defined... try to import this with '@'.

I mean:

import { collection, getDocs } from "@firebase/firestore"

import { db } from "@lib/firebase"