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LRomano's avatar
LRomano
Explorer | Level 3
5 years ago

Re: Dropbox API not returning all files

Hey Greg,   I've tried to adapt this code in order to get a bunch of files that begin with the letters 'zas', but I found the script just ran for hours without any luck, so I stripped it back to ...
API
Greg-DB's avatar
Greg-DB
Icon for Dropbox Staff rankDropbox Staff

Nothing looks clearly wrong in the code. Can you add some extra logging to see:

  • how many calls are being made to files_list_folder and files_list_folder_continue, and when? e.g., how many of that repeated folder entry do you see per call?
  • what the value of result.cursor is each time to make sure it is changing each time?

Alternatively, you can step through with a debugger to inspect this interactively.

LRomano's avatar
LRomano
Explorer | Level 3
5 years ago

The cursor is definitely changing:

 

/MarketingCreative/External/Bidalgo_Zynga_CSR2
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/MarketingCreative/External/Bidalgo_Zynga_CSR2
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/MarketingCreative/External/Bidalgo_Zynga_CSR2
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/MarketingCreative/External/Bidalgo_Zynga_CSR2
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/MarketingCreative/External/Bidalgo_Zynga_CSR2
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/MarketingCreative/External/Bidalgo_Zynga_CSR2
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/MarketingCreative/External/Bidalgo_Zynga_CSR2
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How would I go about finding how many calls are being made to files_list_folder and files_list_folder_continue (other than what already exists)?

 

It seems like the script just resorts to /MarketingCreative/External/Bidalgo_Zynga_CSR2 and stays there.

 

I've let it run for 10k+ iterations a couple of times and the same situation.

 

Thanks :)

  • Greg-DB's avatar
    Greg-DB
    Icon for Dropbox Staff rankDropbox Staff
    5 years ago

    Thanks! Can you share the updated code with this extra logging too? That would help illustrate what exactly is producing this output.

     

    As for the number of calls being made, you don't need an actual counter; I just meant to illustrate each call to files_list_folder and files_list_folder_continue, which your logging appears to be doing now. That is, there are apparently an unbounded number of calls, with each one returning a list with just one entry. That can happen, but it shouldn't repeat, as long as you pass the returned cursor back into files_list_folder_continue. You appear to be doing so, so we'll need to debug that further. Seeing where your logging occurs may help. 

    • LRomano's avatar
      LRomano
      Explorer | Level 3
      5 years ago

      Sure thing, code is here:

       

      root_path = '/MarketingCreative/External/Bidalgo_Zynga_CSR2/'

result = dbx.files_list_folder(root_path, recursive=True)


def process_entries(entries):
    for entry in entries:
      print(entry.path_display)
      print(result.cursor)
      if isinstance(entry, dropbox.files.FileMetadata):
        file = entry.path_display.rsplit('/', 1)[1]
        if file.startswith('zas'):
          print(file)

process_entries(result.entries)

while result.has_more:
  result = dbx.files_list_folder_continue(result.cursor)
  process_entries(result.entries)

       

      Thing is, I'm trying to get all the files that start with 'zas', and I can do this, if I specify the root folder one level below what I currently have, but that's no good to me as I need all the files within the current root folder.

       

      But again, it just seems to be looping infinitely. :/

       

      Thanks again for your help :)

      • Greg-DB's avatar
        Greg-DB
        Icon for Dropbox Staff rankDropbox Staff
        5 years ago

        Thanks, that's helpful. That confirms you're getting one identical entry per page, and a different cursor for each page. 

         

        This doesn't reproduce for me, so we'll need to investigate further on the server-side to find out why this is happening for you. I'll follow up here once I have an update for you.

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