Handle exceptions from the REST client in the REST persistence library

[qtrfeast]

Can we get more info on this @yokolet?

[yokolet]

I'm not sure what this means. But, I can guess.

Currently, diametric doesn't handle exceptions and also failures. Diametric might fail to connect to datomic. Or, Diametric should actively checks queries, returned objects, or whatever and raise exceptions. This would help when Diametric is used in a bigger application.

Perpahs, this makes sense?