I just tried and found out that d/q accepts a reducible as a collection argument and I'm very happy 🙂

Is there a simple way to parse datomic exceptions?

{:cognitect.anomalies/category :cognitect.anomalies/conflict,
       :cognitect.anomalies/message "Unique conflict: :user/email, value:  already held by: 92358976733264 asserted for: 87960930222161",
       :db/error :db.error/unique-conflict}