code: function(teamId, req) {
          const favoritesList = req.app.locals.favoritesList
          const index = favoritesList.findIndex(t => t.id == teamId)
          if(index < 0) {
              const err = new Error('Team is not parte of Favorites!!!')
              err.status = 409
              throw err
          }
          favoritesList.splice(index, 1)
      }
docs: This is a synchronous action that does not do any IO.
  Simply returning with NO exceptions just means success and
  connect-controller will send a 200 response status.