From 1cce60702d9ca553e6b682663f147b081b0fcf16 Mon Sep 17 00:00:00 2001
From: Grzegorz Jakubiak <grzegorz@platogo.com>
Date: Fri, 22 Nov 2024 15:55:17 +0100
Subject: [PATCH] Handle `Hash` type

---
 lib/grape-swagger/endpoint.rb                   | 17 +++++++++++++----
 ...onse_with_models_and_primitive_types_spec.rb |  6 ++++--
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/lib/grape-swagger/endpoint.rb b/lib/grape-swagger/endpoint.rb
index 58b54f58..15509be5 100644
--- a/lib/grape-swagger/endpoint.rb
+++ b/lib/grape-swagger/endpoint.rb
@@ -208,7 +208,7 @@ def response_object(route, options)
         next build_file_response(memo[value[:code]]) if file_response?(value[:model])
 
         next build_delete_response(memo, value) if delete_response?(memo, route, value)
-        next build_primitive_response(memo, route, value, options) if value[:type]
+        next build_response_for_type_parameter(memo, route, value, options) if value[:type]
 
         # Explicitly request no model with { model: '' }
         next if value[:model] == ''
@@ -310,9 +310,8 @@ def build_memo_schema(memo, route, value, response_model, options)
       end
     end
 
-    def build_primitive_response(memo, _route, value, _options)
-      data_type = GrapeSwagger::DocMethods::DataType.call(value[:type])
-      type, format = GrapeSwagger::DocMethods::DataType.mapping(data_type)
+    def build_response_for_type_parameter(memo, _route, value, _options)
+      type, format = prepare_type_and_format(value)
 
       if memo[value[:code]].include?(:schema) && value.include?(:as)
         memo[value[:code]][:schema][:properties].merge!(value[:as] => { type: type, format: format }.compact)
@@ -324,6 +323,16 @@ def build_primitive_response(memo, _route, value, _options)
       end
     end
 
+    def prepare_type_and_format(value)
+      data_type = GrapeSwagger::DocMethods::DataType.call(value[:type])
+
+      if GrapeSwagger::DocMethods::DataType.primitive?(data_type)
+        GrapeSwagger::DocMethods::DataType.mapping(data_type)
+      else
+        data_type
+      end
+    end
+
     def build_reference(route, value, response_model, settings)
       # TODO: proof that the definition exist, if model isn't specified
       reference = if value.key?(:as)
diff --git a/spec/swagger_v2/api_swagger_v2_response_with_models_and_primitive_types_spec.rb b/spec/swagger_v2/api_swagger_v2_response_with_models_and_primitive_types_spec.rb
index 7f0d9f9a..8050f1b6 100644
--- a/spec/swagger_v2/api_swagger_v2_response_with_models_and_primitive_types_spec.rb
+++ b/spec/swagger_v2/api_swagger_v2_response_with_models_and_primitive_types_spec.rb
@@ -15,7 +15,8 @@ class ResponseApiModelsAndPrimitiveTypes < Grape::API
                { type: 'Integer', as: :integer_response },
                { model: Entities::UseResponse, as: :user_response },
                { type: 'String', as: :string_response },
-               { type: 'Float', as: :float_response }
+               { type: 'Float', as: :float_response },
+               { type: 'Hash', as: :hash_response }
              ],
              failure: [
                { code: 400, message: 'NotFound', model: '' },
@@ -54,7 +55,8 @@ def app
                 'user_response' => { '$ref' => '#/definitions/UseResponse' },
                 'integer_response' => { 'type' => 'integer', 'format' => 'int32' },
                 'string_response' => { 'type' => 'string' },
-                'float_response' => { 'type' => 'number', 'format' => 'float' }
+                'float_response' => { 'type' => 'number', 'format' => 'float' },
+                'hash_response' => { 'type' => 'object' }
               }
             }
           },