How to use SQLite as cache in Swift?

Question

SQLite

I receive data from the server with a POST request and display it on the screen. I would like this data to be saved locally so that you can view it when there is no Internet. It comes to mind to store them in SQLite. Those. first I get data from the server, save it in SQLite, then I output it from SQLite. But questions arise: if after connecting the Internet it turns out that the data received earlier was deleted from the server or changed, then you need to determine the inconsistencies and change the data in SQLite. It also turns out that the volume of the application will grow.
How to implement caching in my case?