How to get all the registered routes in Express?

Question

I have a web application built using Node.js and Express. Now I would like to list all the registered routes with their appropriate methods from code written in controller.

-->Router [ Folder ]
   |
   |-->task.js
   |-->work.js

--> task.js
    |--> `router.post("/createUser", createUser);`
    |--> `router.post("/addTask", addTask);`
--> work.js
    |--> `router.post("/login", login)`
    |-->` router.get("/getAllPost", getAllPost)`

Output: Post: ["createUser", "addTask", "login" ] Get: ["getAllPost" ]