Change Name of :id Param in Rails Resource Routing

You can change the name of the parameter used by rails resource routing by specifying the param option to the resource route.

For example, if we have a show endpoint:

resources :pages, only: :show

Running rake routes will return the pages#show url as:

/pages/:id

We can change the id param to slug by doing:

resources :pages, only: :show, param: :slug

Then running rake routes will yield our new pages#show route as:

/pages/:slug