routes example

    products GET    /products(.:format)                     products#index
             POST   /products(.:format)                     products#create
 new_product GET    /products/new(.:format)                 products#new
edit_product GET    /products/:id/edit(.:format)            products#edit
     product GET    /products/:id(.:format)                 products#show
             PUT    /products/:id(.:format)                 products#update
             DELETE /products/:id(.:format)                 products#destroy