Patch to handle Array Declaration #237

Author: frodrigo

lib/grape-swagger/doc_methods.rb

@@ -47,6 +47,12 @@ def parse_params(params, path, method)
                           'double'
                         when 'Symbol'
                           'string'
+                        when /^\[(.*)\]$/
+                          items[:type] = Regexp.last_match[1].downcase
+                          if PRIMITIVE_MAPPINGS.key?(items[:type])
+                            items[:type], items[:format] = PRIMITIVE_MAPPINGS[items[:type]]
+                          end
+                          'array'
                         else
                           @@documentation_class.parse_entity_name(raw_data_type)
                         end

spec/array_params_spec.rb

@@ -20,6 +20,12 @@ def app
       get :raw_array_splines do
       end
 
+      params do
+        optional :raw_array, type: Array[Integer]
+      end
+      get :raw_array_integers do
+      end
+
       add_swagger_documentation
     end
   end
@@ -44,4 +50,14 @@ def app
       { 'paramType' => 'query', 'name' => 'raw_array', 'description' => nil, 'type' => 'Array', 'required' => false, 'allowMultiple' => false }
     ]
   end
+
+  it 'get raw array integer' do
+    get '/swagger_doc/raw_array_integers'
+    expect(last_response.status).to eq 200
+    body = JSON.parse last_response.body
+    parameters = body['apis'].first['operations'].first['parameters']
+    expect(parameters).to eq [
+      { 'paramType' => 'query', 'name' => 'raw_array', 'description' => nil, 'type' => 'array', 'required' => false, 'allowMultiple' => false, 'items' => { 'type' => 'integer', 'format' => 'int32' } }
+    ]
+  end
 end