test_controller.ex

defmodule ApiWeb.TestController do
  use ApiWeb, :controller
  alias Api.OAuth.Github
  alias ApiWeb.View.TestView

  # action_fallback(ApiWeb.FallbackController)

  def callback(conn, %{"code" => code, "state" => _state}) do
    response = Github.get_token(code)
    IO.inspect(response)

    conn
    |> put_status(200)
    |> put_view(TestView)
    |> render("success.json", params: %{})
  end
end