如何使用 firebase 存储移动文件？

Question

有没有办法用 firebase.storage() 移动文件？

示例： user1/public/image.jpg 到 user1/private/image.jpg

Answer 1

没有移动到其他位置的方法，您可以下载然后放到其他参考并删除以前的位置。

Answer 2

由于 Firebase 存储由 Google 云存储支持，您可以使用 GCS 的 rewrite API (docs) or gsutil mv (docs)。

此外，GCloud 节点中 move (docs) 的示例如下：

var bucket = gcs.bucket('my-bucket');
var file = bucket.file('my-image.png');
var newLocation = 'gs://another-bucket/my-image-new.png';
file.move(newLocation, function(err, destinationFile, apiResponse) {
  // `my-bucket` no longer contains:
  // - "my-image.png"
  //
  // `another-bucket` now contains:
  // - "my-image-new.png"

  // `destinationFile` is an instance of a File object that refers to your
  // new file.
});

Answer 3

我编写了一个 JavaScript 函数，仅使用 firebase 存储 API。

编码愉快！

/**
 * Moves a file in firebase storage from its current location to the destination
 * returns the status object for the moved file.
 * @param {String} currentPath The path to the existing file from storage root
 * @param {String} destinationPath The desired pathe for the existing file after storage
 */
function moveFirebaseFile(currentPath, destinationPath) {
    let oldRef = storage.ref().child(currentPath)

    oldRef.getDownloadURL().then(url => {
        fetch(url).then(htmlReturn => {
            let fileArray = new Uint8Array()
            const reader = htmlReturn.body.getReader()

            //get the reader that reads the readable stream of data
            reader
                .read()
                .then(function appendStreamChunk({ done, value }) {
                    //If the reader doesn't return "done = true" append the chunk that was returned to us
                    // rinse and repeat until it is done.
                    if (value) {
                        fileArray = mergeTypedArrays(fileArray, value)
                    }
                    if (done) {
                        console.log(fileArray)
                        return fileArray
                    } else {
                        // "Readout not complete, reading next chunk"
                        return reader.read().then(appendStreamChunk)
                    }
                })
                .then(file => {
                    //Write the file to the new storage place
                    let status = storage
                        .ref()
                        .child(destinationPath)
                        .put(file)
                    //Remove the old reference
                    oldRef.delete()

                    return status
                })
        })
    })
}

Answer 4

自 2022 年 3 月 29 日起，可以通过以下方式直接调用“移动”功能：

import * as functions from "firebase-functions";
import {getStorage} from "firebase-admin/storage";

export const triggerStorage = functions
  .storage
  .object()
  .onFinalize(async (object) => {
    const bucket = getStorage().bucket(object.bucket);
    const destPath = "user1/private/image.jpg";
    await bucket.file(object.name).move(destPath);
  });

如何使用 firebase 存储移动文件？

How to move files with firebase storage?

firebase

firebase-storage