Can't use try catch Firebase Storage [c# Unity]

[media...@gmail.com]

Hey,

I have been wanting to check and see if a file exists in firebase Storage

but according to documentation only way to do is to check for exceptions.

But Firebase doesn't seem to obey that . i tried the following code

it is not goiing into either of if statements nor is it reporting a error

instead logs a this in console StorageReference gs://titlez-fae89.appspot.com/bookpics/prod123.png GetDownloadUrl. failed Not Found.  Could not get object  Http Code: 404.

            try
            {
                bookImageRef.GetDownloadUrlAsync().ContinueWith(task =>
                {
                    Debug.Log(task.Result);

                    if (task.IsFaulted
                        || task.IsCanceled)
                    {

                        Debug.LogError("Download URL: " + task.Result);
                        // use default.png

                        // ... now download the file via WWW or UnityWebRequest.
                    }
                    else if (task.IsCompleted)
                    {
                        Debug.Log("Download URL: " + task.Result);
                        //   GetBookImageFromDB(Productcode, out _image, ImageDownloadLocDetails.DownloadDefault);
                    }
                });

how do I catch the error so I can check if the image exists and perform a particular function if it does and another if it doesnt

Please feel free to let me know if you found it hard to understand my query

Thanks & regards

[Shawn Kuang]

Hi,

You can check task.Exception when task.IsFault is true.   Please take a look of the following sample code.

https://github.com/firebase/quickstart-unity/blob/master/storage/testapp/Assets/Firebase/Sample/Storage/UIHandler.cs#L171

The error code should be ErrorObjectNotFound.

Hope this helps!

Shawn