In Elixir and Phoenix applications, we tend to let it crash when there is an error and can’t return a meaningful response the user.

E.g. a controller action may try to fetch a user by id Users.get_user!(user_id) from a route param, and if not found, Phoenix.Ecto lib allows to convert the Ecto.NoResultsError error to a 404 http not found page.

However, when using an error tracking tool such as AppSignal, Sentry, etc. couldn’t that lead to many useless error reports, bloating the logs, e.g. in cases where there are bots frequently trying to requesting URLs with wrong route params?

What about DDoS attacks against URLs with wrong route params, won’t that lead to a lot of resource consumption because of mass api calls to the chosen error tracking systems?