First time trying Guardian–I did not know that!
Seems like you’ve confused one with the other because of
alias Dog.{UserManager, UserManager.User, UserManager.Guardian}
And, I checked that line to make sure that Guardian.Plug was indeed equivalent to Dog.UserManager.Guardian.Plug! All that code is from the official Guardian “Getting Started Tutorial”.
And, the route problem I was having was due to the tutorial alternately using “/protected” and “/secret” to refer to the Guardian protected route.
By the way, things work when I do:
alias Dog.{UserManager, UserManager.User, UserManager.Guardian}
...
new_conn = Guardian.Plug.sign_in(conn, user)
So, I guess I was looking at the wrong docs??? This is what my lib/dog/user_manager/guardian.ex file looks like:
defmodule Dog.UserManager.Guardian do
use Guardian, otp_app: :dog
alias Dog.UserManager
def subject_for_token(user, _claims) do
# You can use any value for the subject of your token but
# it should be useful in retrieving the resource later, see
# how it being used on `resource_from_claims/1` function.
# A unique `id` is a good subject, a non-unique email address
# is a poor subject.
{:ok, to_string(user.id)}
end
def resource_from_claims(%{"sub" => id}) do
# Here we'll look up our resource from the claims, the subject can be
# found in the `"sub"` key. In `above subject_for_token/2` we returned
# the resource id so here we'll rely on that to look it up.
case UserManager.get_user(id) do
nil -> {:error, :user_not_found}
user -> {:ok, user}
end
end
end
I guess the line:
use Guardian, otp_app: :dog
injects a Plug module? I looked at the source code for the Guardian module:
defmacro __using__(opts \\ []) do
otp_app = Keyword.get(opts, :otp_app)
# credo:disable-for-next-line Credo.Check.Refactor.LongQuoteBlocks
quote do
@behaviour Guardian
if Code.ensure_loaded?(Plug) do
__MODULE__
|> Module.concat(:Plug)
|> Module.create( ## CREATES THE Dog.UserManager.Guardian.Plug MODULE
quote do
use Guardian.Plug, unquote(__MODULE__)
end,
Macro.Env.location(__ENV__)
)
end
And Guardian.Plug’s __using__() function looks like this:
defmacro __using__(impl) do
quote do
...
...
def sign_in(conn, resource, claims \\ %{}, opts \\ []),
do: Guardian.Plug.sign_in(conn, implementation(), resource, claims, opts)
And, there’s the two argument sign_in() function that I lucked into; and, like you said, the way I was calling it originally:
Guardian.Plug.sign_in(conn, Guaridan, user)
matched the parameter variable claims to user.
lol. And the original solution to this question was:
ok found something, I changed it into this:
|> Guardian.Plug.sign_in(user)
Thanks idiot!