# POST         /foo                -> create new record
   # GET          /foo                -> list all records
   # PUT          /foo/by_id/<pk>           -> update record
   # DELETE       /foo/by_id/<pk>           -> delete record
   # GET          /foo/by_id/<pk>           -> view record
   # GET          /foo/by_id/<pk>/edit_form -> edit record form
   # GET          /foo/create_form    -> create record form