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guard
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Useful package for dealing with user authentication and signup
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lib/guard/error_handler.ex
defmodule Guard.ErrorHandler do
import Plug.Conn
import Phoenix.Controller, only: [json: 2]
alias Guard.Controller
# Guardian's ensure_authenticated sends :unauthenticated for 403, but Plug.Status
# expects :forbidden
def auth_error(conn, {:unauthenticated, reason}, _opts) do
conn
|> put_status(:forbidden)
|> json(%{error: :forbidden, reason: Controller.translate_error(reason)})
end
def auth_error(conn, {:invalid_token, reason}, _opts) do
conn
|> put_status(:unauthorized)
|> json(%{error: :invalid_token, reason: Controller.translate_error(reason)})
end
def auth_error(conn, {type, reason}, _opts) do
conn
|> put_status(type)
|> json(%{error: type, reason: Controller.translate_error(reason)})
end
end