examples/api-samples/samples/sample2.rb in groupdocs-1.2.8 vs examples/api-samples/samples/sample2.rb in groupdocs-1.2.9

@@ -1,19 +1,29 @@
+# GET request
 get '/sample2' do
   haml :sample2
 end
 
+# POST request
 post '/sample2' do
+  # set variables
   set :client_id, params[:client_id]
   set :private_key, params[:private_key]
 
   begin
+    # check required variables
     raise "Please enter all required parameters" if settings.client_id.empty? or settings.private_key.empty?
-    files_list = GroupDocs::Storage::Folder.list!('/', {}, { :client_id => settings.client_id, :private_key => settings.private_key})
+
+    # make a request to API using client_id and private_key
+    files_list = GroupDocs::Storage::Folder.list!('/', {}, { :client_id => settings.client_id, :private_key => settings.private_key })
+
+    # construct list of files
     filelist = ''
-    files_list.each {|element| filelist += element.name + '<br />'}
+    files_list.each {|element| filelist << "#{element.name}<br />"}
+
   rescue Exception => e
     err = e.message
-  end  
-  
+  end
+
+  # set variables for template
   haml :sample2, :locals => { :userId => settings.client_id, :privateKey => settings.private_key, :filelist => filelist, :err => err }
 end