rubygem-rack: rubygem-rack (minimal, modular and adaptable interface) rubygem-rack: rubygem-rack: rubygem-rack: Rack provides a minimal, modular and adaptable interface for rubygem-rack: developing web applications in Ruby. By wrapping HTTP requests and rubygem-rack: responses in the simplest way possible, it unifies and distills the rubygem-rack: API for web servers, web frameworks, and software in between rubygem-rack: (the so-called middleware) into a single method call. rubygem-rack: rubygem-rack: http://rack.github.io/ rubygem-rack: