First call to postgres store fails

[dfalling]

I think this may be related to #2.

The first time I try use pow_postgres_store to refresh a session cookie, it fails, without even reading my persistent session cookies. Subsequent calls work great. I'm hoping this is somehow related to Pow displaying the deprecation warning in #2 on the first call but not subsequent calls.

[narrowtux]

Do you have the error message that's thrown?

[dfalling]

The error message is the deprecation warning in #2:

warning: binary key for backend stores is depecated, update `Elixir.Pow.Postgres.Store` to accept erlang terms instead
  (pow) lib/pow/store/base.ex:140: Pow.Store.Base.backwards_compatible_call/3
  (pow) lib/extensions/persistent_session/plug/cookie.ex:197: PowPersistentSession.Plug.Cookie.do_authenticate/3
  (pow) lib/extensions/persistent_session/plug/cookie.ex:65: PowPersistentSession.Plug.Cookie.call/2

My app doesn't appear to read any of the persistent session cookies, but I do see the pow_postgres_store database queries being fired. My app then fails the request, responding with 401. Subsequent requests do read my cookies before making the database call.

[nduitz]

Hey there.
I am experiencing the same issue I guess.

The first time I try to login I get this:

function Pow.Postgres.Store.keys/1 is undefined or private

this code is called:

  # TODO: Remove by 1.1.0

  defp binary_key_all(store, [backend_config, match_spec]) do
    match_spec = :ets.match_spec_compile([{match_spec, [], [:"$_"]}])

    backend_config
    |> store.keys()
    |> Enum.map(&:erlang.binary_to_term/1)
    |> :ets.match_spec_run(match_spec)
    |> Enum.map(&{&1, binary_key_get(store, [backend_config, &1])})
  end

[nduitz]

I looked into it and opened an issue in the pow repo: pow-auth/pow#451
The attached MR should fix that issue.

[danschultzer]

FYI it has been fixed upstream. Next Pow release (v1.0.19) will resolve it. I'm very sure this only happens when you use dynamic code reloading (e.g. starts mix phx.server) instead of running it as e.g. release where it's statically compiled.

[alecho]

Confirming Pow 1.0.19 resolves this.

[narrowtux]

Thanks for confirming this, I'll close this then.