dbernheisel
commented
4 years ago I didn't try with this library, but I was able to load the resource from the session when mounting a liveview with plain Guardian. Hope this helps!
```elixir
defmodule MyAppWeb.Live.AuthHelper do
@moduledoc "Helpers to assist with loading the user from the session into the socket"
@claims %{"typ" => "access"}
@token_key "guardian_default_token"
def load_user(%{@token_key => token}) do
case Guardian.decode_and_verify(MyApp.Accounts.Guardian, token, @claims) do
{:ok, claims} ->
MyApp.Accounts.Guardian.resource_from_claims(claims)
_ ->
{:error, :not_authorized}
end
end
def load_user(_), do: {:error, :not_authorized}
end
# and in a Live view
def mount(_params, session, socket) do
{:ok, user} = MyApp.Live.AuthHelper.load_user(session)
socket = assign(socket, :current_user, user)
# ...
end
```
For comparison for a connection w/ Plug:
```elixir
# router.ex
pipeline :load_auth do
plug Guardian.Plug.Pipeline,
module: MyApp.Accounts.Guardian,
error_handler: MyApp.AccountErrorHandler
plug Guardian.Plug.VerifySession, claims: %{"typ" => "access"}
plug Guardian.Plug.VerifyHeader, claims: %{"typ" => "access"}
plug Guardian.Plug.LoadResource, allow_blank: true
end
# guardian.ex
defmodule MyApp.Accounts.Guardian do
@moduledoc "Convert JWT to and from user"
use Guardian, otp_app: :my_app
alias MyApp.Accounts
def subject_for_token(user, _claims) do
{:ok, to_string(user.id)}
end
def resource_from_claims(%{"sub" => id}) do
case Accounts.find_user(id) do
nil -> {:error, :not_found}
user -> {:ok, user}
end
end
end
```
mssobhan
Hanspagh
happysalada
erikhu
jamilbk
sukidhar
Hi, in LiveView i tried to use import Guardian.Phoenix.Socket ... current_resource(socket)
But doesn't work. How can i get the current user without get again from db? Thanks