将图像从 ReactJS 上传到 Firebase v9 存储

Question

我遇到了问题。我想创建一个简单的图像上传输入，并且图像应该存储在 Firebase 存储中。我想我混淆了一些 v8 和 v9 代码，但我也找不到正确的答案。

当我触发上传时，我收到以下错误消息：

TypeError: _firebase_firebase__WEBPACK_IMPORTED_MODULE_1__.storage.ref is not a function

  61 | 
  62 | const uploadFiles = () => {
  63 |   //
> 64 |   const uploadTask = storage.ref(`images/${img.name}`).put(img);
     | ^  65 |   uploadTask.on(
  66 |     "state_changed",
  67 |     (snapshot) => {

这是我正在运行的代码：

import React, { useState } from "react";
import { storage } from "../../firebase/firebase";
import { ActionBtn, Topbar, SubjectHead, CardList } from "../../components/styles";

const CreateImg = () => {
  const [img, setImg] = useState(null);
  const [progress, setProgress] = useState(0);

  const formHandler = (e) => {
    e.preventDefault();
    const file = e.target.files[0];
    setImg(file);
  };

  const uploadFiles = () => {
    const uploadTask = storage.ref(`images/${img.name}`).put(img);
    uploadTask.on(
      "state_changed",
      (snapshot) => {
        const prog = Math.round(
          (snapshot.bytesTransferred / snapshot.totalBytes) * 100
        );
        setProgress(prog);
      },
      (error) => console.log(error),
      () => {
        storage
          .ref("images")
          .child(img.name)
          .getDownloadURL()
          .then((url) => {
            console.log(url);
          });
      }
    );
  };

  return (
    <div>
      <Topbar>
        <SubjectHead>Create New CV</SubjectHead>
        <ActionBtn onClick={createCv}>Create CV</ActionBtn>
      </Topbar>
      <CardList type="form">
        <div>
          <div>
            <input
              type="file"
              accept=".jpg,.png,.jpeg"
              onChange={formHandler}
            />
            <button type="button" onClick={uploadFiles}>
              Upload
            </button>
            <h4>{progress}%</h4>
          </div>
      </CardList>
    </div>
  );
};

export default CreateImg;

这是我的配置文件：

import { initializeApp } from "firebase/app";
import { getStorage } from "firebase/storage";

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

const app = initializeApp(firebaseConfig);
const storage = getStorage(app);

export { storage };

如果有人可以帮助我解决我的问题，我会非常高兴。

Answer 1

您的进口：

import { getStorage, ref } from "firebase/storage";

然后创建引用：

const storage = getStorage();
const storageRef = ref(storage, `images/${img.name}`); //note that ref is not a function on storage -- it's a separately imported function

设置元数据：

const metadata = {
  contentType: 'image/jpeg'
};

开始并监控上传：

const uploadTask = uploadBytesResumable(storageRef, file, metadata);

uploadTask.on('state_changed',
  (snapshot) => {
    //etc

更多文档：https://firebase.google.com/docs/storage/web/upload-files#upload_files