Added routes for trial registration api

app/services/users/build_service.rb

@@ -87,7 +87,9 @@ module Users
         :password_automatically_set,
         :name,
         :password,
-        :username
+        :username,
+        :first_name,
+        :last_name
       ]
     end
@@ -107,6 +109,10 @@ module Users
         if user_params[:skip_confirmation].nil?
           user_params[:skip_confirmation] = skip_user_confirmation_email_from_setting
         end
+
+        if (user_params[:first_name].present? || user_params[:last_name].present?) && !user_params[:name].present?
+          user_params[:name] = "#{user_params[:first_name]} #{user_params[:last_name]}"
+        end
       end
       if user_default_internal_regex_enabled? && !user_params.key?(:external)

config/routes.rb

@@ -188,6 +188,10 @@ Rails.application.routes.draw do
   draw :user
   draw :project
+  Gitlab.ee do
+    draw :trial_registration
+  end
+
   root to: "root#index"
   get '*unmatched_route', to: 'application#route_not_found'