#90

backend/app/controllers/application_controller.rb

@@ -28,19 +28,17 @@ class ApplicationController < ActionController::API
     end
   end
 
-  def render_bad_request message = 'リクエストが不正です．', field: nil, code: :bad_request
-    render_error(:bad_request, message, field:, code:)
+  def render_bad_request message = 'リクエストが不正です．'
+    render json: { type: 'bad_request',
+                   message:,
+                   errors: { },
+                   base_errors: [message] },
+           status: :bad_request
   end
 
-  def render_unprocessable_entity message = '入力を確認してください．', field: nil, code: :invalid
-    render_error(:unprocessable_entity, message, field:, code:)
-  end
-
-  def render_error status, message, field: nil, code: status
-    error = { code: code.to_s, message: }
-    error[:field] = field.to_s if field.present?
-
-    render json: { errors: [error] }, status:
+  def render_unprocessable_entity message = '入力を確認してください．', field: nil
+    render_validation_error(fields: field ? { field => [message] } : { },
+                            base: field ? [] : [message])
   end
 
   def render_record_invalid error