如果没有令牌/错误令牌，Guardian.Plug.VerifyHeader不执行任何操作

Question

From router:

  pipeline :possibly_authorized do
    plug(:fetch_session)

    plug(
      Guardian.Plug.Pipeline,
      module: BoilerplateWeb.Guardian,
      error_handler: BoilerplateWeb.AuthErrorController
    )

    plug Guardian.Plug.VerifyHeader, realm: :none
    plug Guardian.Plug.LoadResource, allow_blank: true
  end

How do I make plug Guardian.Plug.VerifyHeader do nothing if token is missing or wrong? Now it raises error via error_handler.

Edit: The goal is to still check for the token, if it's present/valid then next plug ( LoadResource ) would get current_user, if not then current_user should be nil without raising.

Answer 1

Based on https://github.com/ueberauth/guardian/blob/v1.2.1/lib/guardian/plug/verify_header.ex#L94

you can see that guardian will do nothing when token is not found, it only halt when the token is invalid.