refacgor: move cors handler to middlewares

app/middlewares/cors.cr

@@ -0,0 +1,29 @@
+module App::Middlewares
+  class CORSHandler < Kemal::Handler
+    exclude ["/api/ping", "/:slug"]
+
+    def initialize(
+      @allow_origin = "*",
+      @allow_methods = "GET, POST, PUT, DELETE, OPTIONS",
+      @allow_headers = "Content-Type, Accept, Origin, X-Api-Key"
+    )
+    end
+
+    def call(env)
+      return call_next(env) if exclude_match?(env)
+
+      env.response.headers["Access-Control-Allow-Origin"] = @allow_origin
+      env.response.headers["Access-Control-Allow-Methods"] = @allow_methods
+      env.response.headers["Access-Control-Allow-Headers"] = @allow_headers
+
+      if env.request.method == "OPTIONS"
+        env.response.status_code = 200
+        env.response.content_type = "text/plain"
+        env.response.print("")
+        return env
+      end
+
+      call_next(env)
+    end
+  end
+end

app/routes.cr

@@ -2,36 +2,8 @@ require "./controllers/**"
 
 require "kemal"
 
-class CORSHandler < Kemal::Handler
+add_handler App::Middlewares::CORSHandler.new
-  exclude ["/:slug"]
+add_handler App::Middlewares::Auth.new
-
-  def initialize(
-    @allow_origin = "*",
-    @allow_methods = "GET, POST, PUT, DELETE, OPTIONS",
-    @allow_headers = "Content-Type, Accept, Origin, X-Api-Key"
-  )
-  end
-
-  def call(context)
-    return call_next(context) if exclude_match?(context)
-
-    context.response.headers["Access-Control-Allow-Origin"] = @allow_origin
-    context.response.headers["Access-Control-Allow-Methods"] = @allow_methods
-    context.response.headers["Access-Control-Allow-Headers"] = @allow_headers
-
-    # If this is a preflight OPTIONS request, we return immediately with 200
-    if context.request.method == "OPTIONS"
-      context.response.status_code = 200
-      context.response.content_type = "text/plain"
-      context.response.print("")
-      return context
-    end
-
-    call_next(context)
-  end
-end
-
-add_handler CORSHandler.new
 
 module App
   get "/:slug", &App::Controllers::ClickController.redirect_handler

bit.cr

@@ -10,8 +10,6 @@ require "./app/services/*"
 require "./app/routes"
 
 add_context_storage_type(App::Models::User)
-add_handler(App::Middlewares::Auth.new)
-
 App::Services::Cli.setup_admin_user
 
 Kemal.run