gistfile1.rb

module Sinatra
  module AmbiguousRoutes
    
    module RouteWithAmbiguousPath
      def route(verb, path, options={}, &block)
        # don't modify routes that already defined with a format extension
        case path
        when Regexp
        else
          if path =~ /\..*$/
            pth, _, ext = path.split(/(\.)(.*)$/)
            path = /^#{pth}(\.#{ext}|)$/
          else
            path = /^#{path}(\.json|)$/
          end
        end
      
        super(verb, path, options, &block)
      end
    end
    def self.registered(app)
      app.class_eval do
        class << self
          include RouteWithAmbiguousPath
        end
      end
    end

  end
end