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Vang G.'s avatar
Vang G.
Explorer | Level 3
8 years ago

Notify When File Change

Hi Dropbox Team,   After I migrated from DB api V1 to V2, I have a problem about sync files. I don't know when the file is changed from Dropbox.    Please help me.   Thanks, Vang Doan
API
Vang G.'s avatar
Vang G.
Explorer | Level 3
8 years ago
Hi Greg K.

Im working on iOS platform.

Thanks,
Vang Doan
  • Greg-DB's avatar
    Greg-DB
    Icon for Dropbox Community Moderator rankDropbox Community Moderator
    8 years ago

    The /2/files/list_folder/longpoll endpoint tells you when something has changed in the linked account, but it doesn't tell you exactly what changed. (This is the equivalent of API v1's /1/longpoll_delta.)

     

    You should then call /2/files/list_folder[/continue] to find out what changed. (This is the equivalent of API v1's /1/delta.)

     

    Note that if you're using an SDK, there will be corresponding methods for each of these endpoints.

    • Vang G.'s avatar
      Vang G.
      Explorer | Level 3
      8 years ago

      Hi Greg K.

       

      I tried to use /2/files/list_folder/longpoll (iOS), but It dont work all times. I think the reason is Timeout.

      I don't still understand, when finished timeout (follow document the connection will block), I must manual to reconnect to observer again???

       

      Please help me! 

       

      Thanks,

      Vang Doan

      • Greg-DB's avatar
        Greg-DB
        Icon for Dropbox Community Moderator rankDropbox Community Moderator
        8 years ago
        Hi Vang, can you elaborate on what you mean when you say "It dont work all times"? What error do you get?

        And yes, if the call times out or returns changes:false, you should just set up another call and wait again. This way, you just keep one connection open whenever necessary (e.g., only while the app is active) to monitor for changes.

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