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Forum Discussion
Objective C batchUploadFiles gives error: "missing required field 'session_id'" or "Garbage at end."
Hi,
I am getting the error
DropboxBadInputError[{
ErrorContent = "Error in call to API function \"files/upload_session/finish_batch\": request body: entries.cursor: missing required ...
- Thanks! This is very helpful. I'm able to reproduce this now. We're looking into it.
We have a rough idea of what's occurring, though not exactly why it's occurring yet. One thing that may be relevant though is that for some calls, you're using `setProgressBlock` and checking `if (totalBytesUploaded == totalBytesExpectedToUploaded` to see if the operation is complete. You should always use the response block (e.g., `setResponseBlock` for most calls, or passed as a parameter for `batchUploadFiles`) to know when the operation completed and then carry on with your next steps.
Please try making that change and let me know if it does or doesn't help. Thanks!
Thanks Greg for helping.
I've edited the code to be easily tested, so you can lift it and put it in your app. All you need to do is:
1) In the documents directory of the iphone app make a photo and call it MainPhoto.db //yes change the extension to .db, this is to repiclicate the db file i transfer in the app
2) Next in the documents directory make a folder called photos, add about 20 or so pngs// you can just use cmd-d to duplicate one photo many times
3)Once you do that you should be able to run the method, this method will have "Garbage at end of file" then further use of this method will cause session_id errors
In addition, I've updated the dropbox api to 3.2 in the app, but the problems still occurs.
Here is the entire code
https://github.com/git-tyl/WineCellarProblemCode/blob/master/problemUploadingDropboxCode.m
Greg-DB
Dropbox Staff
Dropbox StaffThanks! That's very helpful. We'll look into it.
- Greg-DBI just followed your instructions and was able to run your supplied code, but I didn't get either of these error messages.
There must be some other factor, so can you perhaps plug it in to a sample project that reproduces the issues for you and share that?
Also, in case it matters, what version of Xcode are you using?- Ok i'll test it on a sample project.
Have you tried multiple times , it sometimes will succeed but most of the time it will not.
Xcode Version 8.3.3 (8E3004b) - Ok I've created an entirely new project but I still get the problem. I've publish this sample project in github and I've published the sample photos that I use to test the problem so you can put the sample photos into the document's folder of the app.
https://github.com/git-tyl/DropboxTestProblem- Greg-DBThanks! This is very helpful. I'm able to reproduce this now. We're looking into it.
We have a rough idea of what's occurring, though not exactly why it's occurring yet. One thing that may be relevant though is that for some calls, you're using `setProgressBlock` and checking `if (totalBytesUploaded == totalBytesExpectedToUploaded` to see if the operation is complete. You should always use the response block (e.g., `setResponseBlock` for most calls, or passed as a parameter for `batchUploadFiles`) to know when the operation completed and then carry on with your next steps.
Please try making that change and let me know if it does or doesn't help. Thanks!
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