ruby on rails - Rabl Api and preventing code duplication -

i working on simple api rails project should able versioning. using rabl-rails gem.

to prevent code duplication, wanna able use controlleractions (ex. usercontroller#search) twice. 1 time normal webusers, , 1 api.

i saw people writing controllers this:

class api::v1::userscontroller   def list     @user = user.all   end end 

do have namespace controllers rabl? or possible "route or delegate" json requests existing controllers?

for example regular userscontroller action "list" has this:

def list   respond_to |format|     format.html     format.json  { render @user }   end end 

views/users/list.json.rabl exist , works in case.

now try move rabl files into

/api/v1/users/list.json.rabl

i provide route:

namespace :api, :defaults => {:format => :json}   namespace :v1     match 'users/list', to: 'users#list', as: 'users', via: [:get, :post]   end end 

at moment not provide api::v1::userscontroller.

what best approach to

• provide /api/v1/users/list route but
• use regular userscontroller and
• have list.json.rabl view in /api/v1/ folder?

i hope it's not complicated explained...

i ended idea, api should have own logic. actions have view specific stuff (breadcrumbs, dropdown values, etc.) inside.

with knowledge "search logic" can extracted module gets mixed applicationcontroller class (inlcude). can use logic in both places: api , regular web view.

my first attempt here:

basecontroller

# base controller api requests  class api::v1::basecontroller < applicationcontroller   respond_to :json   acts_as_token_authentication_handler_for user end 

api subcontrollers

class api::v1::userscontroller < api::v1::basecontroller # inherit basecontroller -------^^^^^^^^^^^^^^^^^^^^^^^           # personal extracted logic   include searchlogic    def list     @user  = user.all   end  end 

so