Complex online application synchronizing offline and vice versa

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I have a complex application already developed to work online with Firebase, but now I need it to work offline too, as it can be used without an internet connection. Actions carried out without an internet connection need to be synchronized online as soon as the internet connection returns. The online application is ready, I just need to do this part offline. Remember, the application has several screens and tables, it is complex!

What have you tried so far?

At the moment I tried to understand how sqlite works, but from what I read and understood I should have done it offline first and then online. But I still have doubts about how to synchronize the data. After the user is logged in, they will be able to perform numerous actions in different tables within the application, which must be synchronized when they return to the internet.

Did you check FlutterFlow's Documentation for this topic?

Yes

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