Precompile and Lazy Schema Compilation

[bnert]

A pattern I've landed on w/ multiple handlers is to have:

(def kit-config
  {:graphql.kit/engine "..."})

(def http-handler (kit.http/handler kit-config))
(def ws-handler (kit.ws/handler kit-config))
(def graphiql-handler (kit.graphiql/handler {:enabled? true, #_...})

In order to not perform extra work, it'd be good to allow for eager and/or lazy compilation:

(def kit-config
  (kit.util/precompile
    {:graphql.kit/engine "..."}))

; or for lazy, but single compilation. Basically would be: `(lazy (kit.util/precompile ...))`.
#_(def kit-config
  (kit.util/lazy-compile
    {:graphql.kit/engine "..."}))

(def http-handler (kit.http/handler kit-config))
(def ws-handler (kit.ws/handler kit-config))
(def graphiql-handler (kit.graphiql/handler {:enabled? true, #_...})