Initial commit

config/initializers/grape.rb

@@ -0,0 +1,22 @@
+# encoding: UTF-8
+# frozen_string_literal: true
+
+# Make Grape support lambdas in «description» field.
+
+require 'grape-swagger/doc_methods/parse_params'
+require 'grape_entity/exposure/delegator_exposure'
+
+class Grape::Entity::Exposure::Base
+  def documentation
+    @documentation.respond_to?(:call) ? @documentation.call : @documentation
+  end
+end
+
+class << GrapeSwagger::DocMethods::ParseParams
+  def document_description(settings)
+    description = settings[:desc].presence || settings[:description].presence
+    description = description.respond_to?(:call) ? description.call : description
+    description = '' unless description.kind_of?(String) && description.present?
+    @parsed_param[:description] = description
+  end
+end