How to perform differential sync at Worklight

Question

I sync values from database to local collections as source values and perform operations on these docs subsequently I push updated docs back to the corresponding db table, at success of push I want to pull only those docs from updated database that are not present at local collection of my device. I could have used sync time stamp but in some peculiar situation either some docs get duplicated or got missing at my device. I must also bring to notice that the local database also gets augmented while I perform operations at the device.

Answer 1

JSON Store is what you need in this case. More details here -

JSONStore