replace deprecated rack_response with error!

Author: markokajzer

lib/slack-ruby-bot-server/api/helpers/error_helpers.rb

@@ -10,42 +10,42 @@ module ErrorHelpers
             Middleware.logger.error "#{e.class.name}: #{e.message}\n  #{backtrace}"
             error = { type: 'other_error', message: e.message }
             error[:backtrace] = backtrace
-            rack_response(error.to_json, 400)
+            error!(error, 400)
           end
           # rescue document validation errors into detail json
           if SlackRubyBotServer::Config.mongoid?
             rescue_from Mongoid::Errors::Validations do |e|
               backtrace = e.backtrace[0..5].join("\n  ")
               Middleware.logger.warn "#{e.class.name}: #{e.message}\n  #{backtrace}"
-              rack_response({
+              error!({
                 type: 'param_error',
                 message: e.document.errors.full_messages.uniq.join(', ') + '.',
                 detail: e.document.errors.messages.each_with_object({}) do |(k, v), h|
                   h[k] = v.uniq
                 end
-              }.to_json, 400)
+              }, 400)
             end
           end
           rescue_from Grape::Exceptions::Validation do |e|
             backtrace = e.backtrace[0..5].join("\n  ")
             Middleware.logger.warn "#{e.class.name}: #{e.message}\n  #{backtrace}"
-            rack_response({
+            error!({
               type: 'param_error',
               message: 'Invalid parameters.',
               detail: { e.params.join(', ') => [e.message] }
-            }.to_json, 400)
+            }, 400)
           end
           rescue_from Grape::Exceptions::ValidationErrors do |e|
             backtrace = e.backtrace[0..5].join("\n  ")
             Middleware.logger.warn "#{e.class.name}: #{e.message}\n  #{backtrace}"
-            rack_response({
+            error!({
               type: 'param_error',
               message: 'Invalid parameters.',
               detail: e.errors.each_with_object({}) do |(k, v), h|
                 # JSON does not permit having a key of type Array
                 h[k.count == 1 ? k.first : k.join(', ')] = v
               end
-            }.to_json, 400)
+            }, 400)
           end
         end
       end