Last active
October 23, 2017 16:34
-
-
Save ikitommi/8a97080357fd7de06882ba99f0df974c to your computer and use it in GitHub Desktop.
2-way spec coercion
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
(ns handler | |
(:require [clj-time.core :as t] | |
[clj-time.coerce :as t.c] | |
[spec-tools.conform :as conform] | |
[clojure.spec.alpha :as s] | |
[spec-tools.core :as st] | |
[compojure.api.sweet :refer :all] | |
[ring.util.http-response :refer :all])) | |
(def timestamp | |
(st/spec | |
{:spec #(or (pos-int? %) (string? %)) | |
:json-schema/default "2017-10-12T05:04:57.585Z" | |
:type :timestamp})) | |
(defn json-timestamp->long [_ val] | |
(t.c/to-long val)) | |
(defn timestamp->json-string [_ val] | |
(t.c/to-string val)) | |
(def custom-coercion | |
(-> compojure.api.coercion.spec/default-options | |
(assoc-in | |
[:body :formats "application/json"] | |
(st/type-conforming | |
(merge | |
conform/json-type-conforming | |
{:timestamp json-timestamp->long} | |
conform/strip-extra-keys-type-conforming))) | |
(assoc-in | |
[:response :formats "application/json"] | |
(st/type-conforming | |
(merge | |
conform/json-type-conforming | |
{:timestamp timestamp->json-string} | |
conform/strip-extra-keys-type-conforming))) | |
compojure.api.coercion.spec/create-coercion)) | |
custom-coercion | |
;#SpecCoercion{:name :spec, | |
; :options {:body {:default :compojure.api.coercion.spec/default, | |
; :formats {"application/json" #object[...], | |
; "application/msgpack" #object[...], | |
; "application/x-yaml" #object[...]}}, | |
; :string {:default #object[...]}, | |
; :response {:default :compojure.api.coercion.spec/default, | |
; :formats {"application/json" #object[...]}}}} | |
(s/def ::time timestamp) | |
(s/def ::body (st/spec (s/keys :req-un [::time]))) | |
(def app | |
(api | |
{:coercion custom-coercion} | |
(POST "/date" [] | |
:return ::body | |
:body [body ::body] | |
(println "I see:" body) | |
(ok body)))) | |
(-> {:request-method :post | |
:uri "/date" | |
:headers {"content-type" "application/json"} | |
:body "{\"time\": \"2017-10-12T05:04:57.585Z\"}"} | |
app | |
:body | |
slurp) | |
; I see: {:time 1507784697585} | |
; => "{\"time\":\"2017-10-12T05:04:57.585Z\"}" |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment