Google sitemap files for rails Projects - Google sitemap files for rails projects

problem ：

Is there an easy way to create a sitemaps file for Rails projects? Is there a simple way to Rails Project create site map file ？Especially for dynamic sites (such as Stack Overflow for example) there should be a way to dynamically create a sitemaps file. Especially for dynamic sites （ for example Stack Overflow）, There should be a way to dynamically create site map files .What is the way to go in Ruby and/or Rails?Ruby and / or Rails What is the method of ？

What would you suggest? What would you suggest ？Is there any good gem out there? Is there any good gem there ？

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Solution ：

Reference resources ： https://stackoom.com/en/question/8iOI