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Forum Discussion
Figuring out what type of error in unboxed in SwiftyDropbox
I'm trying to understand how to catch and parse errors from the swifty dropbox SDK, specifically route errors. Apologies if this is a simple question, I'm new to Swift! In the examples that I've ...
Greg-DB
Dropbox Staff
Dropbox StaffThe uploadSessionStartBatch method doesn't actually have a route specific error type, because it doesn't have any route specific errors. (It's just Void.) You can see this in the uploadSessionStartBatch documentation where it says:
Return Value
Through the response callback, the caller will receive a
Files.UploadSessionStartBatchResultobject on success or aVoidobject on failure.
For comparison, you can see how the listFolder documentation says:
Return Value
Through the response callback, the caller will receive a
Files.ListFolderResultobject on success or aFiles.ListFolderErrorobject on failure.
The uploadSessionStartBatch method itself doesn't upload or commit any data, and so doesn't consume any space in the user's account; that means it can't cause the user's account to go over quota and so can't trigger any over quota error for you to catch.
If you want to proactively check the user's space usage though, you can call getSpaceUsage.
Ah right, thank you. It looks like uploadSessionFinishBatchV2 also returns Void, which is surpirising because the Java version of uploadSessionFinishBatchV2 returns a WriteError.INSUFFICIENT_SPACE if there isn't enough space. Furthermore, uploadSessionAppendV2 returns an UploadSessionAppendError which has the following values:
- notFound
- incorrectOffset(_:)
- closed
- notClosed
- tooLarge
- concurrentSessionInvalidOffset
- concurrentSessionInvalidDataSize
- payloadTooLarge
- other
- contentHashMismatch
I don't see an insufficient space value, so I'm still not sure how to catch an insufficient space error during batch upload - any pointers would be highly appreciated. I'd rather not have to proactively check before each upload (I'm not sure how you could safely do that when uploading many files in parallel)
Thanks!
- Greg-DB
The Java SDK isn't inconsistent with the Swift SDK; it doesn't directly return a WriteError. The Java SDK uploadSessionFinishBatchV2 method returns UploadSessionFinishBatchResult which has an entries field which is a list of UploadSessionFinishBatchResultEntry each of which might be a failure, and if it is a failure it would be a UploadSessionFinishError, and in some cases might be a WriteError in particular. Check out the linked documentation for more information on how to check the types at check step of that process.
You would do the same in the Swift SDK. The UploadSessionFinishBatchResult has entries which is a list of UploadSessionFinishBatchResultEntry, each of which is success or failure, and if it's a failure the object indicates why it failed, and so on.
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