Passing Database reference into handlers

[practicalli-johnny]

Practicalli:
keep the handlers clean by passing database connection to the helper functions
See banking on clojure

https://clojureverse.org/t/how-to-manage-database-connection-in-clojure/5067
https://stackoverflow.com/questions/19776462/passing-state-as-parameter-to-a-ring-handler

https://luminusweb.com/docs/database.html

The same approach is also done with component systems such as Integrant, Mount and Component