Question

I know how to check internet connection. Tell me how to sync app data.

How does the synchronization works when internet is available ?

My confusion :

I have app which uses the web-service to display data on iPhone and also on site. Now I can update user’s work when the net is available by calling web-service at same time when user does some task.

But when internet is not available, I have to keep user’s data locally(say SQLite) in iPhone and when the internet is reachable I have to update all the data on server.

For Example, 

      If internet is reachable, user works on some task and I update the data on server at the dame time.

      But Now internet is not reachable, user works on `N task`. I can not update on server, I have to wait for internet 
      How can I update all task on web-server at time?

So my question is :

How can I update all the data when net is available ?

Any link or code which can help me ?

Answer 1

Try to put a Field as isOfflinerecord in your database (In case If you are using Database) and when connectivity comes back update or Insert only those data.
This could be your initial step.