How to acccess urls defined in a plugin publicly?

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I am able to access newly defined get url which is get “/getbadges” => “categories#getBadges”

Screenshot from 2020-09-16 16-45-14
Screenshot from 2020-09-16 16-45-141366×768 43.1 KB

I defined GET url which is get “/getbadges” => “categories#getBadges” in routes.rb file.

and below getBadges method in categories_controller.rb file

def getBadges
	json_data = {"name":"siddhu"}
	render json: json_data
end

I ran local disocurse instance and try to access defined get url http://localhost:9292/getbadges.
I am able to acess this get url but same thing i did in GitHub - siddhudhangar/discourse-ratings · GitHub plugin. here it is not working, Can you help me out for solving this issue ?

Below i gave my github url, here you can check my code and let me know if i have made any mistakes.
https://github.com/siddhudhangar/discourse-ratings