funcool.struct as validation library?

[px0]

Have you checked out https://funcool.github.io/struct/latest/ as validation library? The featureset seems to be comparable to verily, except that struct is offering optional coercion and I like the way that custom validators are created better. Here is an example of a validator for a moustache-templated text I wrote:

(def valid-template
  {:message "Die Variablen müssen in {{}} eingeschlossen werden"
   :optional true
   :state false
   :validate (fn [v]
               (let [freq (frequencies v)]
                 (and (even? (get freq \{ 0))
                      (= (get freq \{)
                         (get freq \})))))
   :coerce (fn [s] ;  lower-case and trim anything in {{}}
             (str/replace s
                          #"\{\{(.+?)\}\}"
                          #(str "{{"
                                (str/lower-case (str/trim (second %1)))
                                "}}")))})

[swlkr]

I like this, I actually wrote some custom code on the current validator to get it back into a map, this lib already returns a vector of [error map]

[swlkr]

This is still coming along, but I also wanted to start to try to let people customize which functions do what, so like… when you start the app in server.clj you could pick what happens, like this:

(ns server
  (:require [coast]))

(def routes [[:get "/" :home]])

(def app (coast/app {:routes routes
                     :router custom-router
                     :validate custom-validation-fn-or-library
                     :email custom-emailer
                     :queue-job custom-job-queuer})) ; and so on

This also means that the coast lib itself in clojars, won't have like 20 deps anymore, the template might have a bunch of deps in it, so if you want to customize the renderer or what have you, you'd choose what you want. Just trying to keep you in the loop, if you're still into it 👍

[px0]

I am, and I appreciate it :) I haven't had much time lately to play with Coast, but I've been following the issues and your commits! Thanks for your work!

[px0]

BTW, I wouldn't worry too much about making everything ultra configurable. If I really, really want a different router I can rip it out myself, it's probably not worth making the code base super complicated for the common case. YAGNI and all that :)