Move filter methods to dsl

src/kemal/dsl.cr

@@ -1,7 +1,11 @@
 # Kemal DSL is defined here and it's baked into global scope.
-# The DSL currently consists of HTTP verbs(get post put patch delete options),
-# WebSocket(ws) and custom error handler(error).
+# The DSL currently consists of
+# - get post put patch delete options
+# - WebSocket(ws)
+# - before_*
+# - error
 HTTP_METHODS   = %w(get post put patch delete options)
+FILTER_METHODS = %w(get post put patch delete options all)
 
 {% for method in HTTP_METHODS %}
   def {{method.id}}(path, &block : HTTP::Server::Context -> _)
@@ -18,3 +22,14 @@ end
 def error(status_code, &block : HTTP::Server::Context, Exception -> _)
   Kemal.config.add_error_handler status_code, &block
 end
+
+# All the helper methods available are:
+#  - before_all, before_get, before_post, before_put, before_patch, before_delete, before_options
+#  - after_all, after_get, after_post, after_put, after_patch, after_delete, after_options
+{% for type in ["before", "after"] %}
+  {% for method in FILTER_METHODS %}
+    def {{type.id}}_{{method.id}}(path = "*", &block : HTTP::Server::Context -> _)
+     Kemal::FilterHandler::INSTANCE.{{type.id}}({{method}}.upcase, path, &block)
+    end
+  {% end %}
+{% end %}

src/kemal/filter_handler.cr

@@ -83,15 +83,3 @@ module Kemal
     end
   end
 end
-
-# All the helper methods available are:
-#  - before_all, before_get, before_post, before_put, before_patch, before_delete
-#  - after_all, after_get, after_post, after_put, after_patch, after_delete
-ALL_METHODS = %w(get post put patch delete all)
-{% for type in ["before", "after"] %}
-  {% for method in ALL_METHODS %}
-    def {{type.id}}_{{method.id}}(path = "*", &block : HTTP::Server::Context -> _)
-     Kemal::FilterHandler::INSTANCE.{{type.id}}({{method}}.upcase, path, &block)
-    end
-  {% end %}
-{% end %}