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Forum Discussion
dropbox.filesUpload sometimes does not work
Hi,
I am now doing an online experiment via URL and trying to collect data using dropbox javascript SDK.
At the end of the experiment, the success message was always prompted. But the data wa...
fangzefunny wrote:...
At the end of the experiment, the success message was always prompted. But the data was not always uploaded to my dropbox.
...
... var saveDropbox = function(content, filename){ dbx.filesUpload({ path: "/" + filename, contents: content }) }; ......
Hi fangzefunny,
In your 'saveDropbox' function, what are you doing with Dropbox 'filesUpload' method result? On success there should be received a file metadata to the file just uploaded and on error - the corresponding error information. As far as I can see, you are ignoring this information. In this context, you function always succeeds regardless if actual upload succeeds or fails. The information of the error pointing the reason of an upload fail is lost too. That's why you never get any error message and your 'success message' always appears. 😉 Be more careful.
Hope this gives direction.
fangzefunny wrote:...
At the end of the experiment, the success message was always prompted. But the data was not always uploaded to my dropbox.
...
... var saveDropbox = function(content, filename){ dbx.filesUpload({ path: "/" + filename, contents: content }) }; ......
Hi fangzefunny,
In your 'saveDropbox' function, what are you doing with Dropbox 'filesUpload' method result? On success there should be received a file metadata to the file just uploaded and on error - the corresponding error information. As far as I can see, you are ignoring this information. In this context, you function always succeeds regardless if actual upload succeeds or fails. The information of the error pointing the reason of an upload fail is lost too. That's why you never get any error message and your 'success message' always appears. 😉 Be more careful.
Hope this gives direction.
- Greg-DB
Dropbox Staff
fangzefunny Здравко is correct; you should check the response or error for the call, which you are currently ignoring. You can find an example of handling the response and error for an upload call with the Dropbox API v2 JavaScript SDK here.
Thanks! I found the reason today.
Sometimes, people make too many mistakes, making the (adaptive) experiment too long, and that causes the data file being too large. The large file cannot pass through the "post" operation, causing the problem of 413.
I was not able to see the error message before. I run it online, so I cannot see others' error messages. When I did it locally, I responded well, so the issue did not occur.Anyway, thanks! It is not a problem with Dropbox!
fangzefunny wrote:... The large file cannot pass through the "post" operation, causing the problem of 413. ...
Hi fangzefunny,
For large files consider using upload sessions instead, not single upload. Every upload transaction is guaranteed to pass for no more than 150MB. In a session you can split the file content on pieces 150MB each, at most. In such a way you can upload significantly larger file. 😉
Good luck.
Got it! Thanks for great suggestions!
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