How to avoid data corruption when syncing in background React Native iOS, limited to 30 sec?

[bluepuma77]

We did some research, so far very little seems to be posted about WatermelonDB corrupting data (in extreme situations).

Our use case seems a bit special, we would like to send silent push notifications to React Native on iOS to trigger a DB sync. The challenge we might find is that iOS will pause/kill those background-jobs after about 30 seconds. They might be resumed when starting the app.

• What happens to a sync job when it is paused and potentially resumed later on?
• What happens when a sync job is just killed in the middle of the process?
• What happens when a second sync job is started in parallel?
• What happens when a read is happening during one of those events described above?

How can we ensure that the WatermelonDB will not be corrupted by our background processing?