Notify When File Change

If you're building a server-side app, the best way to know when things change is to use webhooks:

https://www.dropbox.com/developers/reference/webhooks

If you're building a client-side app, the best way to know when things change is to use /2/files/list_folder/longpoll: (or the respective method in whatever SDK/library you're using, if any)

https://www.dropbox.com/developers/documentation/http/documentation#files-list_folder-longpoll

If you're running in to trouble getting the API working with your app, I'll be happy to help with any issues you're having, but I'll need some more information. Please reply with:

- the name and version of the platform and SDK/library you are using, if any
- the full text of any error or output
- the steps to reproduce the issue, including the relevant code snippet(s)

Hi Greg K.,
I tried with
https://www.dropbox.com/developers/documentation/http/documentation#files-list_folder-longpoll, But it work incorrect, I dont know exactly what files change when I delete.

Unlike Api v1.

Please help me :(

Thanks,
Vang Doan

Hi Greg K.

Im working on iOS platform.

Thanks,
Vang Doan

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.

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.