Merge pull request #70 from ieugen/master

[#69] Added redirect-trailing-slash middleware + fix content-type for 4xx response

libs/lein-template/resources/leiningen/new/kit/src/clj/web/handler.clj

@@ -2,6 +2,7 @@
   (:require
     [<<ns-name>>.web.middleware.core :as middleware]
     [integrant.core :as ig]
+    [ring.util.http-response :as http-response]
     [reitit.ring :as ring]
     [reitit.swagger-ui :as swagger-ui]))
 
@@ -10,17 +11,23 @@
   (ring/ring-handler
     router
     (ring/routes
-      (ring/create-resource-handler {:path "/"})
-      (when (some? api-path)
-        (swagger-ui/create-swagger-ui-handler {:path api-path
-                                               :url  (str api-path "/swagger.json")}))
-      (ring/create-default-handler
-        {:not-found
-         (constantly {:status 404, :body "Page not found"})
-         :method-not-allowed
-         (constantly {:status 405, :body "Not allowed"})
-         :not-acceptable
-         (constantly {:status 406, :body "Not acceptable"})}))
+     ;; Handle trailing slash in routes - add it + redirect to it
+     ;; https://github.com/metosin/reitit/blob/master/doc/ring/slash_handler.md 
+     (ring/redirect-trailing-slash-handler)
+     (ring/create-resource-handler {:path "/"})
+     (when (some? api-path)
+       (swagger-ui/create-swagger-ui-handler {:path api-path
+                                              :url  (str api-path "/swagger.json")}))
+     (ring/create-default-handler
+      {:not-found
+       (constantly (-> {:status 404, :body "Page not found"}
+                       (http-response/content-type "text/html")))
+       :method-not-allowed
+       (constantly (-> {:status 405, :body "Not allowed"}
+                       (http-response/content-type "text/html")))
+       :not-acceptable
+       (constantly (-> {:status 406, :body "Not acceptable"}
+                       (http-response/content-type "text/html")))}))
     {:middleware [(middleware/wrap-base opts)]}))
 
 (defmethod ig/init-key :router/routes