Should we abstract validation engines?

[niquola]

Can we generalize validation and abstract away zen/schema from the zen core?

[KGOH]

@niquola could you elaborate on that? From what I see, you can replace validation engine by doing

(zen.schema/register-schema-pre-process-hook!
  :my-validate my-props-validate)
  
(zen.schema/register-schema-post-process-hook!
  :my-validate my-unknown-keys-post-process-hook)

(zen.schema/register-compile-key-interpreter!
  [:type :my-validate] my-compile-type-validation)
  
(zen.schema/register-compile-key-interpreter!
  [:keys :my-validate] my-compile-keys-validation)
;; etc

And you can run that by doing

(zen.schema/apply-schema ztx vtx schema data {:interpreters [:my-validate]})

This approach allows to use schema for any purposes and is not limited to validation, as the zen.schema namespace doesn't explicitly rely/mention validation in any way

Related issue:
#38