Hello @pranjalc92

Is it fine to use LocalBucket.fromJsonCompatibleSnapshot to deserialize the data from the DB?

I suppose that it will be unpleasure excersize. The main problem will be correctness in concurrent environment.

Are we losing any features from Bucket4J while doing so?

At least on-the-fly configuration replacement and implicit configuration replacement. And you will not be able to reuse AbstractDistributedBucketTest to check whether you solution is correct or not. So I highly reccomend to extend one of base classes(choose particular depending from concurrency features that your database provides) instead of writing all code from scratch:

• AbstractCompareAndSwapBasedProxyManager
• AbstractSelectForUpdateBasedProxyManager
• AbstractLockBasedProxyManager
• AbstractProxyManager

Extending one of base class will allow to resuse the TCK and reuse ideas from already implemented integrations.

How would bucket refill work in this case?

Refill should works fine, in way way as you proposed.