CODEWITHSUNDEEP
firebasedartflutterfirebase-storage
Wazza
Wazza

Reputation: 1885

Catch error on failed file upload with firebase storage

I'm trying to prepare for the inevitability of when a user uploads to firebase storage but doesn't have an internet connection. Currently, if i use the following and turn of all internet connections it never reaches the catchError it just waits and prints the dowloadUrl when the connection comes back.

  FirebaseStorage.instance.setMaxOperationRetryTimeMillis(10);
  final StorageReference ref = FirebaseStorage.instance.ref().child("AllUsers").child(uuid).child(fileName);
  final StorageUploadTask uploadTask = ref.putFile(image, const StorageMetadata(contentLanguage: "en"));
  Uri downloadUrl;
  await uploadTask.future.then( (UploadTaskSnapshot snapshot) {
    downloadUrl = snapshot.downloadUrl;
    print(downloadUrl)
  }).catchError((error) {
    print(error);
  });

Does this mean I don't have to worry about caching each image for upload later and that it's being handled? I'm assuming not but that would be great.

Update:

Adding this instead of the then catch:

  try {
    downloadUrl = (await uploadTask.future).downloadUrl;
    print("$downloadUrl");
  } catch (error) {
    print(error);
  }

didnt make the call after the request.

Update 2:

Tried adding the following:

  FirebaseStorage.instance.setMaxUploadRetryTimeMillis(10);
  FirebaseStorage.instance.setMaxOperationRetryTimeMillis(10);
  FirebaseStorage.instance.setMaxDownloadRetryTimeMillis(10);

which returns E/StorageException(13068): The operation retry limit has been exceeded. but through the console and not caught as an error in my catchError or try catch block.

Upvotes: 1

Views: 1927

Answers (1)

Edman
Edman

Reputation: 5605

(This doesn't respond the exact question)

What I would do in your situation is I would save the file to disk first, and then delete it once Firebase picks it up. The flow becomes

user -> save local -> firebase -> delete local.

Instead of

user -> firebase -> (on success) -> done
                 -> (on failure) -> save local -> firebase

Upvotes: 1

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