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尝试使用 RxFire 在 Google Cloud Storage 中上传大图像文件时出现错误：storage/object-not-found。

他们说在桶中找不到图像，但是当我检查时，我看到了！

我用小图像（可能是 100kb ......）进行了测试，效果很好。

但是尝试使用> 500kb的图像，不起作用......

upload$
  .pipe(
    switchMap((event: any) => {
      const name = Math.random().toString(36).substring(5);
      const blob = event.target.files[0];
      const type = blob.type.replace('image/', '');
      const ref = storage.ref(`uploads/test/${name}.${type}`);
      return put(ref, blob);
    }),
    map(snapshot => snapshot),
    filter(snapshot => snapshot.totalBytes === snapshot.bytesTransferred),
    mergeMap(snapshot => getDownloadURL(snapshot.ref))
  )
  .subscribe(url => {
    console.log('Results', url)
  }, (error) => {
    // ERROR HERE
    console.log('error', error)
  })

预期结果：上传使用大图像

实际结果：错误

Uncaught t {code_: "storage/object-not-found", message_: "Firebase . 
Storage: Object 'uploads/test/7xpbilmb.jpeg' does not exist.", 
serverResponse_: "{↵  "error": {↵    "code": 404,↵    "message": 
"Not Found.  Could not get object"↵  }↵}", name_: "FirebaseError"}
4

1 回答 1

4

你可以用两种方式来做。

  1. 承诺

     storageRef.put(blob, {customMetadata}).then(data => {
                data.ref.getDownloadURL().then(url => {
                    // do whatever you want with url
                });
            });

  2. 可观察的

    downloadURL = new Subject();
this.downloadURL.pipe(
                map(obs => obs),
                concatAll()
            ).subscribe(url => {
                // do whatever you want with url
            });

let task = ref.put(blob, {customMetadata});
task.snapshotChanges().pipe(
                finalize(() => this.downloadURL.next(ref.getDownloadURL()))
            ).subscribe();

这应该足以让您获得您的下载网址。如果你想用 observables 跟踪上传进度，下面是代码：

task.percentageChanges().subscribe(progress => {
                console.log('upload progress: ', progress);
                if (res >= 100) {
                    // HOORAY!
                }
            });
于 2019-06-03T22:18:23.973 回答