Be able to set common handlers

[rjourde]

Now:

  r := new(route.Router)
  r.HandleFunc("/users/?", errorHandler(authorizeHandler(usersHandler)))
  r.HandleFunc("/users/[0-9]+/?", errorHandler(authorizeHandler(userHandler)))
  r.HandleFunc("/users/[0-9]+/friends/[a-zA-Z]+/?", errorHandler(authorizeHandler(friendHandler)))

After:

  r := new(route.Router)
  r.commonHandlers = [errorHandler, authorizeHandler]
  r.HandleFunc("/users/?", usersHandler)
  r.HandleFunc("/users/[0-9]+/?", userHandler)
  r.HandleFunc("/users/[0-9]+/friends/[a-zA-Z]+/?", friendHandler)

[santiaago]

I like this 👍

[santiaago]

I am thinking if this work should be in this package or in a taironas/filers or taironas/authorize package.

What do you think?